1) Wilbur, Paul J. and Robert G. Jahn, "Energy Transfer from a Pulse
Network to a Propagating Current Sheet," AIAA Paper 69-113, January 21,
1969.
2) Wilbur, Paul J. and Robert G. Jahn, "Energy Transfer from a Pulse
Network to a Propagating current Sheet," AIAA Journal, Vol. 8, No. 1, p.
144, January 1970.
3) Wilbur, Paul J., "Electrolytic Capacitor Current Pulse Networks
for Quasi-Steady MPD Arcs," AIAA 8th Electric Propulsion Conference (1970),
AIAA Paper No. 70-1082, September 1970.
4) Palumbo, G., R.P. Vahrenkamp, D.J. Fitzgerald, P.J. Wilbur, H.R.
Kaufman and W. R. Mickelsen, "Effect of Geometry and Field Inside the Pole
Piece in an Electron Bombardment Thruster," AIAA 8th Electric Propulsion
Conference, Stanford, California (1970), AIAA Paper No. 70-1088.
5) Mitchell, C.E., P.J. Wilbur, and W.R. Espander, "Analysis of Combustion Instability in Motors with Partial Length Acoustic Liners," Proceedings of the 7th JANNAF Combustion Conference, C.P.I.A. Publication 204, Vol. 1 (Feb. 1971), p. 721.
6) Wilbur, Paul J., "Electrolytic Capacitor Current Pulse Networks for
Quasi-Steady MPD Arcs," AIAA Journal, Vol. 9, No. 8, pp. 1447-1451, August
1971.
7) Wilbur, Paul J., "An Experimental Investigation of a Hollow Cathode
Discharge," NASA CR-12037, December 1971.
8) Wilbur, P.J., "Effects of the Hollow Cathode Discharge on Throttled
Ion Thruster Performance," AIAA 9th Electric Propulsion Conference (1972),
AIAA Paper No. 72-421, April 1972.
9) Prigmore, Daryl and P.J. Wilbur, "Mobile Rankine Cycle Power Plants,
A System Weight Study," ASME Paper 72-WA/Ener 4, Nov. 26-30, 1972.
10) Wilbur, Paul J., "Experimental Investigation of a Throttlable 15
cm Hollow Cathode Ion thruster," NASA CR-121038, December 1972.
11) Wilbur, Paul J., "Effects of the Hollow Cathode Discharge on Throttled
Ion Thruster Performance," Journal of Spacecraft and Rockets, Vol. 10,
No. 1, p. 3, January 1973.
12) Wilbur, Paul J. and Jerry Isaacson, "Plasma Property Contours in
a 15 cm Hollow Cathode Kaufman Thruster," Colorado State University Report
CER 72-73 PJW20, February 1973.
13) Wilbur, Paul J., "Performance of a 15 cm Ion Thruster with Dished
Grids," Conference on Electric Propulsion of Space Vehicles-Culham Laboratory,
Abingdon, Berkshire, England, April 10-12, 1973.
14) Wilbur, Paul J., "Correlation of Ion and Beam Current Densities
in Kaufman Thrusters," Journal of Spacecraft and Rockets, Vol. 10 No. 9,
p. 623, September 1973.
15) Wilbur, P.J., "Performance of a 15-cm Ion Thruster with Reliable
Restart Capability," AIAA 10th Electric Propulsion Conference (1973), AIAA
Paper No. 73-1139, November 1973.
16) Wilbur, P.J., "A Mercury Flow Meter for Ion Thruster Testing," AIAA
10th Electric Propulsion Conference (1973), AIAA Paper No. 73-1087, November
1973.
17) Wilbur, P.J., "Hollow Cathode Restartable 15 cm Diameter Ion Thruster,"
NASA CR-134532, December 1973.
18) Wilbur, P.J., "Mercury Flow Meter for Ion thruster Testing," Journal
of Spacecraft and Rockets, Vol. 11, No. 10, October 1974, pp. 728-729.
19) Wilbur, P.J., "Performance of Fifteen-Centimeter Ion Thruster with
Reliable Restart Capability," Journal of Spacecraft and Rockets, Vol. 11,
No. 9, September 1974, pp. 621-624.
20) Wilbur, P.J. and C.E. Mitchell, "Solar Absorption Air Conditioning
Alternatives," International Solar Energy Society Conf., Fort Collins,
Colo., August 20-23, 1974.
21) Semmens, M.G., P.J. Wilbur and W.S. Duff, "Liquid Refrigerant Storage
in Absorption Air Conditioners," ASME Paper 74-WA/HT-19, November 1974.
22) Graf, J.E. and P.J. Wilbur, "Photographic Study of an Operating
Hollow Cathode," AIAA Paper 75-394, March 19-21, 1975.
23) Peters, R.R. and P.J. Wilbur, "Double Ion Production in Mercury
Thrusters," AIAA Paper 75-398, March 19-21, 1975.
24) Beattie, J.R. and P.J. Wilbur, "15 cm Cusped Magnetic Field Mercury
Mercury Ion Thruster Research," AIAA Paper 74-429, March 19-21, 1975.
25) Wilbur, P.J. and C.E. Mitchell, "Solar Absorption Air Conditioning
Alternatives," Solar Energy, Vol. 17, pp. 193-199, July 1975.
26) Wilbur, P.J., "15 cm Mercury Ion Thruster Research - 1975," NASA
CR-134905, December 1975.
27) Peters, R.R. and P.J. Wilbur, "Double Ion Production in Mercury
Thruster," NASA CR-135034, May 1976.
28) Aston, Graeme, and P.J. Wilbur, "The Ion-Optics of a Two-grid Electron-Bombardment
Thruster," NASA CR-135034, May 1976.
29) Wilbur, P.J. and H.R. Kaufman, "Plasma Research in Electric Propulsion
at Colorado State University," Proceedings of Princeton University Conference
on Partially Ionized Plasmas including the 3rd Symposium on Uranium Plasmas,
June 10, 1976, pp. 37-47.
30) Beattie, J.R., and P.J. Wilbur, "Cusped Magnetic Field Mercury
Ion Thruster," AIAA Paper No. 76-1001, Nov. 14-17, 1976.
31) Peters, R.R., and P.J. Wilbur, "Mercury Ion Thruster Doubly Charged
Ion Model," AIAA Paper No. 76-1010, Nov. 14-17, 1976.
32) Beattie, J.R., and P.J. Wilbur, "Cusped Magnetic Field Mercury
Ion Thruster," AIAA Paper No. 76-1011, Nov. 14-17, 1976.
33) Wilbur, P. J., "15 cm Mercury Ion Thruster Research - 1976, NASA
CR-135116, December 1976.
34) Wilbur, P.J., and T.R. Mancini, "A Comparison of Solar Absorption
Air Conditioning Systems," Solar Energy, Vol. 18, pp. 569-576, 1976.
35) Peters, R.R., and P.J. Wilbur, "Mercury Ion Thruster Doubly Charged
Ion Model," Journal of Spacecraft and Rockets, Vol. 14, No. 8, pp. 461-468.
36) Beattie, J.R., and P.J. Wilbur, "Cusped Magnetic Field Mercury
Ion Thruster," Journal of Spacecraft and Rockets, Vol. 14, No. 12, pp.
747-755, December 1977.
37) Wilbur, P.J., and S. Karaki, Solar Cooling, The Franklin Institute
Press, Philadelphia, Pa., 1977.
38) Wilbur, P.J., "Mercury Ion Thruster Research--1977," NASA CR-135317,
December 1977.
39) Wilbur, P.J., and H.R. Kaufman, "Scaling Relationships for Mercury
and Gaseous Propellant Ion Thrusters," AIAA Paper No. 78-667, April 1978.
40) Siegfried, D.E., and P.J. Wilbur, "An Investigation of Mercury
Hollow Cathode Phenomena," AIAA Paper 78-705, April 1978.
41) Longhurst, G.R., and P.J. Wilbur, "Multipole Mercury Ion Thruster,"
AIAA Paper 78-632, April 1978.
42) Aston, G., H.R. Kaufman, and P.J. Wilbur, "Ion Beam Divergence Characteristics
of Two-Grid Accelerator Systems," AIAA Journal, Vol. 16, No. 5, pp. 516-524,
May 1978.
43) Longhurst, G.R., and P.J. Wilbur, "Multipole Mercury Ion Thrusters,"
Journal of Spacecraft and Rockets, Vol. 16, No. 1, pp. 42-47, 1979.
44) Wilbur, P.J., "Mercury Ion Thruster Research--1978," NASA CR-159485,
December 1978.
45) Meredith, D.B., and P.J. Wilbur, "The Desiccant/Rock Bed Method
of Solar Cooling with Air Collectors," ASME Paper 799058, 14th Intersociety
Energy Conversion Engineering Conference, August 5-10, 1979, Boston, Massachusetts.
46) Longhurst, G.R. and P.J. Wilbur, "Plasma Property and Performance
Prediction in Mercury Ion Thruster," AIAA Paper 79-2054, Oct. 1979.
47) Siegfried, D. and P.J. Wilbur, "Studies on an Experimental Quartz
Tube Hollow Cathode," AIAA Paper 79-2056, Oct. 1979.
48) Brophy, J.R. and P.J. Wilbur, "Electron Diffusion Through the Baffle
Aperture of a Hollow Cathode Thruster," AIAA Paper 79-2060, Oct. 1979.
49) Wilbur, P.J., "A Model for Nitrogen Chemisorption in Ion Thruster,"
AIAA Paper 79-2062, Oct. 1979.
50) Aston, G. and P.J. Wilbur, "The Screen Hole Plasma Sheath of an
Ion Accelerator System," AIAA Paper 79-2114, Oct. 1979.
51) Wilbur, P.J., and H.R. Kaufman, "Double Ion Production in Argon
and Xenon Ion Thrusters," Journal of Spacecraft and Rockets, Vol. 16, July-August,
1979, pp. 264-267.
52) Wilbur, P.J., "Physical Phenomena in Mercury Ion Thrusters," NASA
CR-159784, Dec. 1979.
53) Bonnin, J., P.J. Wilbur and S. Karaki, Refrigeration Solaire, Editions
SCM, Paris, France, 1980.
54) Aston, G., and P.J. Wilbur, "Ion Extraction from a Plasma," NASA
CR-159849, June 1980.
55) Brophy, J.R., and P.J. Wilbur, "Baffle Aperture Design Study
of Hollow Cathode Equipped Ion Thrusters," NASA CR-165164, Oct. 1980.
56) Wilbur, P.J., "Ion and Advanced Electric Thruster Research," NASA
CR-165253, December 1980.
57) Wilbur, P.J. and R.S. Robinson, "Passivation of Carbon Steel through
Mercury Implanation," NASA CR-165292, February 1981.
58) Brophy, J.R. and P.J. Wilbur, "Design Model for the Baffle Aperture
Region of a Hollow Cathode Thruster," AIAA Paper No. 81-0758, April 1981.
59) Siegfried, D.E. and P.J. Wilbur, "A Phenomenological Model Describing
Orificed, Hollow Cathode Operation," AIAA Paper No. 81-0746, April 1981.
60) Aston, G. and P.J. Wilbur, "Ion Extraction from a Plasma,"
J. Appl. Phys., Vol. 52, No. 4, April 1981, pp. 2614-2626.
61) Brophy, J.R. and P.J. Wilbur, "Electron Diffusion through the Baffle
Aperture of a Hollow Cathode Thruster", appears in Electric Propulsion
and its Application to Space Missions, v. 79 of Progress in Astronautics
and Aeronautics, 1981, pp. 159-172.
62) Wilbur, P.J., "A Model for Nitrogen Chemisorption in Ion Thrusters,
appears in Electric Propulsion and its Application to Space Missions, v.
79 of Progress in Astronautics and Aeronautics, 1981, pp. 211-223.
63) Longhurst, G.R. and P.J. Wilbur, "Plasma Property and Performance
Predictions for Mercury Ion Thrusters", appears in Electric Propulsion
and its Application to Space Missions, v. 79 of Progress in Astronautics
and Aeronautics, 1981, pp. 224-250.
64) Aston, G. and P.J. Wilbur, "The Screen Hole Plasma Sheath of an
Ion Accelerator System", appears in Electric Propulsion and its Application
to Space Missions, v. 79 of Progress in Astronautics and Aeronautics, 1981,
pp. 251-261.
65) Siegfried, D.E. and P.J. Wilbur, "Studies on an Experimental Quartz
Tube Hollow Cathode", appears in Electric Propulsion and its Application
to Space Missions, v. 79 of Progress in Astronautics and Aeronautics, 1981,
pp. 262-277.
66) Wilbur, P.J., "Advanced Space Propulsion Research", NASA CR-165584,
Dec. 1981.
67) Robinson, R.S. and P.J. Wilbur, "Passivation of Carbon Steel Using
Low Energy Mercury Ion Surface Treatment", J. Vac. Sci. Technol., Vol.
21, No. 1, May/June 1982, pp. 50-55.
68) Wilbur, P.J., C.E. Mitchell and B.D. Shaw, "The Electrothermal
Ramjet," AIAA Paper 82-1216, June l982.
69) Brophy, J.R. and P.J. Wilbur," The Flexible Magnetic Field Thruster,"
AIAA Paper No. 82-1936, Nov. 1982.
70) Rovang, D.C. and P.J. Wilbur, "Ion Extraction Capabilities of Very
Closely Spaced Grids," AIAA Paper No. 82-1894, Nov. 1982.
71) Feng, Yu-Cai and P.J. Wilbur, "The Influence of Stray Magnetic
Fields on Ion Beam Neutralization," AIAA Paper No. 82-1945, Nov. 1982.
72) Siegfried, D.S. and P.J. Wilbur, "A Model for Mercury Orificed
Hollow Cathodes: Theory and Experiment", AIAA Paper No. 82-1889, Nov. 1982.
73) Homa, J.M. and P.J. Wilbur, "Ion Beamlet Vectoring by Grid Translation,"
AIAA Paper No. 82-1895, Nov. 1982.
74) Brophy, J.R. and P.J. Wilbur, "Baffle Aperture Design Model for
Electron Bombardment Thrusters", J. of Spacecraft and Rockets, Vol. 19,
No. 6, Nov/Dec. 1982, pp. 586-591.
75) Siegfried, D.E. and P.J. Wilbur, "Phenomenological Model Describing
Orificed, Hollow Cathode Operation," AIAA Journal, Vol. 21, No. 1, Jan.
1983, pp. 5-6.
76) Wilbur, P.J., "Advanced Ion Thruster and Electrothermal Launcher
Research," NASA CR 168083, Jan. 1983.
77) Siegfried, D.E. and P.J. Wilbur, "Phenomenological Model for Orified
Hollow Cathodes," NASA CR-168026, Dec. 1982.
78) Brophy, J.R. and P.J. Wilbur, "Recent Developments in Ion Sources
for Space Propulsion," Proceedings of the International Ion Engineering
Congress, 12-16 September 1983, Kyoto, Japan, Invited Paper, pp. 411-422.
79) Feng, Yu-Cai and P.J. Wilbur, "Enhancement of Ion Beam Currents
Through Space-Charge Compensation," J. Appl. Phys., Vol. 54, No. 11, Nov.
l983, pp. 6113-6118.
80) Wilbur, P.J., C.E. Mitchell and B.D. Shaw, "The Electrothermal Ramjet,"
J. of Spacecraft and Rockets, Vol. 20, No. 6, Nov.-Dec. l983, pp. 603-618.
81) Brophy, J.R. and P.J. Wilbur, "The Flexible Magnetic Field Thruster,"
J. of Spacecraft and Rockets, Vol. 20, No. 6, Nov.-Dec. l983, pp. 611-618.
82) Wilbur, P.J., "Electrostatic Thruster Capabilities for Orbit-Raising
and Manuvering Missions," Appears in Orbit-Raising and Manuvering
Propulsion: Research Status and Needs, L. H. Caveny ed., Vol. 89.
Progress in Astronautics and Aeronautics, l984, American Institute of Aeronautics
and Astronautics, pp. 327-341.
83) Wilbur, P.J., "Advanced Ion Thruster Research," NASA CR-168340,
Jan. l984.
84) Rovang, D.C. and P.J. Wilbur, "Ion Extraction Capabilities of Two-Grid
Accelerator Systems," NASA CR-174621, Feb. l984.
85) Wilbur, P.J. and J.R. Brophy, "The Effect of Discharge Chamber
Wall Temperature on Ion Thruster Performance," Int'l. Elec. Propulsion
Conf., Tokyo, Japan, May l984, IEPC Paper 84-67.
86) Brophy, J.R. and P.J. Wilbur, "Simple Performance Model for Ring
and Line Cusp Ion Thruster," Int'l Elec. Propulsion Conf. Tokyo, Japan,
May l984, IEPC Paper 84-68.
87) Brophy, J.R. and P.J. Wilbur, "An Experimental Investigation of
Cusped Magnetic Field Discharge Chambers," Int'l Elec. Propulsion Conf.,
Tokyo, Japan, May l984, IEPC Paper 84-70.
88) Rovang, D.C. and P.J. Wilbur, "Ion Extraction Capabilities of Two-Grid
Accelerator Systems," Int'l. Elec. Propulsion Conf., Tokyo, Japan, May
l984, IEPC Paper 84-86.
89) Shaw, B.D., C.E. Mitchell and P. J. Wilbur, "The Annular Flow Electro-thermal
Ramjet," AIAA paper 84-1593, June l984.
90) Shaw, B.D. and P.J. Wilbur, "The Annular Flow Electrothermal Ramjet,"
NASA CR-174704, July 1984.
91) Siegfried, D.S. and P.J. Wilbur, "A Model for Mercury Orificed Hollow Cathodes: Theory and Experiment," AIAA Journal, Vol. 22, No. 10 Oct. 1984, pp. 1405-1412.
92) Brophy, J.R. and P.J. Wilbur, "Ion Thruster Performance Model,"
NASA CR-174810, December 1984.
93) Wilbur, P.J., "Advanced Ion Thruster Research," NASA CR-174862,
January 1985.
94) Wilbur, P.J. and L.O. Daniels, "Broad Beam Ion Implantation Research,"
Proceedings of the 5th International Ion and Plasma Assisted Techniques
Conference, Munich, 13-15 May 1985.
95) Rovang, D.S. and P.J. Wilbur, "Ion Extraction Capabilities of Two-Grid
Accelerator Systems," Journal of Power and Propulsion, Vol. 1, No. 3, May-June
1985, pp. 172-179.
96) Brophy, J.R. and P.J. Wilbur, "Application of an Ion Thruster Performance
Model to Orbit Transfer Mission Analysis," AIAA Paper No. 85-1150, July
8-10, 1985.
97) Hiatt, J.M. and P.J. Wilbur, "Ring Cusp Discharge Chamber Performance
Optimization," AIAA Paper No. 85-2007, Sept. 30, 1985.
98) Brophy, J.R. and P.J. Wilbur, "Calculation of Plasma Properties
in Ion Sources," AIAA Paper No. 85-2006, Sept. 30, 1985.
99) Wilbur, P.J., "Plasma Contactor Performance Characterization,"
Applications of Tethers in Space, NASA CP 2422, Oct. 1985, pp. 483-498.
100) Brophy, J.R. and P.J. Wilbur, "Simple Performance Model for Ring
and Line Cusp Ion Thrusters," AIAA Journal, Vol. 23, No. 11, Nov. 1985,
pp. 1731-1736.
101) Shaw, B.D., C.E. Mitchell and P.J. Wilbur, "The Annular Flow,
Electrothermal Plug Ramjet," Journal of Power and Propulsion, Vol. 1, No.
6, Nov.-Dec. 1985, pp. 417-424.
102) Wilbur, P.J. and Thomas G. Laupa, "Plasma Contractor Performance
Comparisons," Proceedings of Applications of Tethers in Space Workshop,
Venice, Italy, Oct. 15-17, 1985.
103) Brophy, J.R. and P.J. Wilbur, "An Experimental Investigation of Cusped Magnetic Field Discharge Chambers," AIAA Journal, V. 24, No. 1, Jan. 1986, pp. 21-26.
104) Wilbur, P.J., "Advanced Electric Propulsion and Space Plasma Contactor Research," NASA CR-175119, Jan. 1986.
105) Wilbur, P.J. and J.R. Brophy, "The Effect of Discharge Chamber
Wall Temperature on Ion Thruster Performance," AIAA Journal, V. 24, No.
2, Feb. 1986, pp. 278-283.
106) Wilbur, P.J. and L.O. Daniels, "The Development and Application
of an Ion Implanter Based on Ion Thruster Technology," Vacuum, V. 36, No.
1-3, Jan.-Mar. 1986, pp. 5-9.
107) Sampath, W.S. and P.J. Wilbur, "A New Rapid Technique for Characterizing
Microstructures Produced by Ion Beams in the Transmission Electron Microscope,"
Mat. Sci. and Engr. V. 90, pp. 367-371, 1987, and Surface Modification
of Metals by Ion Beams, Elsevier, 1987, pp. 367-371.
108) Daniels, L.O. and P.J. Wilbur, "Effects of Nitrogen Ion Implantation
on Load-Bearing Capacity and Adhesive Wear Behavior in Steels," V International
Conference on Ion Beam Modification of Materials, Catania, Italy, June
1986, Part 1, pp. 221-226; also Nucl. Instrum. and Meth. in Phys., B19/20,
1987, pp. 221-226.
109) Wilbur, P.J. and T.G. Laupa, "Plasma Contactor Design for Electrodynamic
Tether Applications," Proceedings of Active Experiments Symposium, COSPAR,
June 1986, Toulouse, France, appears in Adv. Space Res., Vol. 8, No. 1,
pp. (1)211-(1)224, 1988.
110) Brophy, J.R. and P.J. Wilbur, "Calculation of Plasma Properties
in Ion Sources," AIAA Journal, Vol. 24, No. 9, Sept. 1986, pp. 1516-1523.
111) Hiatt, J.M. and P.J. Wilbur, "Ring Cusp Discharge Chamber Performance
Optimization," Journal of Propulsion and Power," Vol. 2, No. 5, Sept.-Oct.
1986, pp. 390-397.
112) Wei, Ronghua and Paul J. Wilbur, "Space-charge-limited Current
Flow in a Spherical Double Sheath," J. App. Phys., Vol. 60, No. 7, 1 Oct
1986, pp. 2280-2284.
113) Patterson, M.J. and P.J. Wilbur, "Plasma Contactors for Electrodynamic
Tethers," NASA TM-88850, American Astronautical Society Paper 86-226; from
NASA/AIAA/PSN International Conference on Tethers in Space, Sept. 1986.
Also appears in Tethers in Space, V. 62, Advances in Astronautical Sciences,
eds. P. M. Bainum et al, pp. 383-405.
114) Wilbur, P.J., "Hollow Cathode Plasma Coupling Study - 1986," NASA CR-171985, Dec. 1986.
115) Wilbur, P.J. and J.D. Williams, "An Experimental Investigation
of the Plasma Contacting Process," AIAA Paper 87-057, Jan. 12-15, 1987,
Reno, Nevada.
116) Wilbur, P.J., "Advanced Electric Propulsion and Space Plasma Contactor
Research," NASA CR-180862, Jan. 1987.
117) Wilbur, P.J. and W.S. Sampath, "The Effects of Ultrahigh Current
Density Ion Implantation on Bulk Microstructure," Proceedings of the Industry-University
Advanced Materials Conference, Denver, Colorado, Feb. 25-27, 1987, The
Metallurgical Society of AIME, pp. 47-55.
118) Sampath, W.S., F.M. Kustas and P.J. Wilbur, "Formation of Amorphous
Materials by Ion Beam Processing Techniques," Proceedings of the Industry-University
Advanced Materials Conference, Denver, Colorado, Feb. 25-27, 1987, The
Metallurgical Society of AIME, pp. 359-364.
119) Sampath, W.S., R. Wei and P.J. Wilbur, "Effects of Ultrahigh Current
Density Ion Implantation on Bulk Microstructure and Bulk Hardness," TMS-AIME
Technical Paper A87-21, Feb. 1987.
120) Patterson, M.J. and P.J. Wilbur, "Plasma Contactors for Electrodynamic
Tethers," Aerospace America, Vol. 25, No. 2, Feb. 1987, pp. 32-34.
121) Sampath, W.S. and P.J. Wilbur, "Broad Beam Ultrahigh Current Density
Ion Implantation," Materials Research Society Symposium on Materials Modification
and Growth using Ion Beams, April 1987. Materials Modification and
Growth Using Ion Beams, Mat. Res. Soc. (1987).
122) Sampath, W.S., F.M. Kustas, R. Wei and P.J. Wilbur, "Surface Slip
Retardation by Ion Implantation," Materials Research Society Symposium
on Materials Modification and Growth using Ion Beams, April 1987.
Materials Modification and Growth Using Ion Beams, Mat. Res. Soc. (1987).
123) Wilbur, P.J. and J.Z. Han, "Constrained-Sheath Optics for High
Thrust-Density, Low Specific-Impulse Ion Thrusters," AIAA Paper 87-1073,
International Electric Propulsion Conference, May 13, 1987, Colorado Springs,
Colorado.
124) Luebben, C.R. and P.J. Wilbur, "Hollow Cathodes for Arcjet Thrusters,"
AIAA Paper 87-1088, International Electric Propulsion Conference, May 13,
1987, Colorado Springs, Colorado.
125) Sampath, W.S., R. Wei and P.J. Wilbur, "Ultrahigh Current Density Ion Implantation," Journal of Metals, April 1987, pp. 17-19.
126) Sampath, W.S. and P.J. Wilbur, "A New Rapid Technique for Characterizing
Microstructures of Films Produced by Ion Beams in the Transmission Electron
Microscope," Materials Sci. and Engr., V. 90, 1987, pp. 367-371.
127) Sampath, W.S. and P.J. Wilbur, "Broad Beam Ultrahigh Current Density
Ion Implantation," Proceedings of the Materials Research Society Symposium,
V. 93, 1987, pp. 349-360.
128) Sampath, W.S., F.M. Kustas, R. Wei and P.J. Wilbur, "Surface Slip
Retardation by Ion Implantation," Proceedings of the Materials Research
Society Symposium, V. 93, 1987, pp. 385-390.
129) Williams, John D., Paul J. Wilbur and Jeff M. Monheiser, "Experimental
Validation of a Phenomenological Model of the Plasma Contacting Process,"
Proceedings of the 2nd International Conference on Tethers, eds. L. Guerriero
and I. Bekey, Oct. 1987, Venice, Italy, pp. 245-253.
130) Wilbur, Paul J., "Advanced Electric Propulsion Research," NASA
CR-182130, Jan. 1988.
131) Wilbur, Paul J., "Space Plasma Contactor Research - 1987," NASA
CR-182148, Jan. 1988.
132) Wei, R.H., W.S. Sampath and P.J. Wilbur, "Cross Sectional Transmission
Electron Microscopy Studies on Ultrahigh Dose Rate, Ion-Implanted Aluminum,"
Proceedings of the Shanghai Workshop on Ion Implantation, Hanzhou, China,
June 1988, pp. 244-247.
133) Wilbur, P.J., R. Wei and W.S. Sampath, "High Current Density,
Broad Beam Ion Implantation," Materials Sci and Engr. V. A116, pp. 215-220,
1989.
134) Vaughn, J.A. and P.J. Wilbur, "Ring Cusp/Hollow Cathode Discharge
Chamber Performance Studies," Paper IEPC 88-064, 20th International Electric
Propulsion Conference, Oct. 1988, Garmisch-Partenkirchen, West Germany.
135) Arakawa, Y. and P.J. Wilbur, "Discharge Plasma Calculations in
Cusped Ion Thrusters Using the Finite Element Method," Paper IEPC 88-079,
20th International Electric Propulsion Conference, Oct. 1988, Garmisch-Partenkirchen,
West Germany.
136) Wilbur, P.J., J.R. Beattie and J. Hyman, Jr., "An Approach to
the Parametric Design of Ion Thrusters," Paper IEPC 88-080, 20th International
Electric Propulsion Conference, Oct. 1988, Garmisch-Partenkirchen, West
Germany.
137) Williamson, D.L., Y. Qu, R. Wei, W.S. Sampath and P.J. Wilbur,
"Tribological and Mossbauer Studies of Ion-Implanted Iron," Mat. Sci. Soc.
Symp. Proc. V. 128, 1989, pp. 409-414.
138) Kustas, F.M., M.S. Misra, S.R. Smith, P.J. Wilbur and R.L. Thom,
"High Current Density Ion Implantation Processing of 440C Steel Part
1: Implantation Parameters and Rolling Contact Fatigue Improvement," Surface
and Coatings Technology, V. 37, pp. 1-13, 1989.
139) Vaughn, J.A. and P.J. Wilbur, "Characterization of Hollow Cathode,
Ring Cusp Discharge Chambers," NASA CR-182255, Jan. 1989.
140) Anderson, J.R. and P.J. Wilbur, "The Divergence Characteristics of Constrained-Sheath Optics Systems for Use with 5-eV Atomic Oxygen Sources," NASA CR-182238, Jan. 1989.
141) Williams, J.D. and P.J. Wilbur, "Plasma Contacting - An Enabling
Technology," AIAA Paper 89-0677, Aerospace Sciences Meeting, Jan. 1989,
Reno, NV.
142) Wei, R., P.J. Wilbur, W.S. Sampath, D.L. Williamson, Y. Qu, L.
Wang, Y. C. Feng and F. Tian, "A Comparative Study of Nitrogen Ion Implantation
and Dynamic Mixing of Pure Iron," Proceedings of Industry-University Advanced
Materials Conference II, Advanced Materials Institute, F. Smith, ed., March
6-9, 1989, pp. 365-375.
143) Wilbur, P.J., "Advanced Electric Propulsion Research - 1988, NASA
CR-182254, Feb. 1989.
144) Williams, J.D. and P.J. Wilbur, "Plasma Contactor Research - 1988,
NASA CR-182283, Feb. 1989.
145) Wilbur, P.J. and J.D. Williams, "Laboratory Experiments on Plasma
Contactors," appears in, "Current Collection from Space Plasmas,"
eds. N. Singh, K. H. Wright, Jr. and N. H. Stone, NASA CP 3089, April,
1989.
146) Williams, J.D. and P.J. Wilbur, "Ground-Based Tests of Hollow
Cathode Plasma Contactors," Proceedings of the Third International Conference
on Tethers in Space, San Francisco, CA, May 1989, AIAA Publication CP892,
pp. 77-87.
147) Kustas, F.M., M.S. Misra, and P.J. Wilbur, "Ultrahigh Current
Density Nitrogen Implantation of 440C Steel for Improved Rolling Contact
Fatigue Lifetimes," Surf. and Coatings Tech., V. 39/40, 1989, pp. 573-585.
148) Wei, R., P.J. Wilbur, W.S. Sampath, D.L. Williamson, Y. Qu and L. Wang, "Tribological Studies of Ion-Implanted Steel Constituents using an Oscillating Pin-on-Disc Wear Tester," J. Tribology, V. 112, Jan 1990, pp. 27-36.
149) Williamson, D.L., L. Wang, R. Wei and P.J. Wilbur, "Solid Solution Strengthening of Stainless Steel Surface Layers by Rapid, High-Dose, Elevated Temperature Nitrogen Ion Implantation," Mat. Ltrs. V. 9, No. 9, May 1990, pp. 302-308.
150) Wei, R., P.J. Wilbur, W.S. Sampath, D.L. Williamson, and L. Wang, "Sliding Wear of Nitrogen Ion-Implanted Stainless Steels," STLE preprint 90-AM-7C-1, May 1990, Lubrication Engineering, V. 47, No. 4, April 1991, pp. 326-334.
151) Friedly, V. and P.J. Wilbur, "High Current Hollow Cathode Phenomena," AIAA Paper 90-2587, July 1990.
152) Anderson, J.R., P.J. Wilbur, and M.R. Carruth, Jr, "An Ion Optics System Incorporating Radio Frequency Mass Separation," AIAA Paper 90-2567, July 1990.
153) Bianconi, M., G. Cirri, M. LeBrun, G. Matticari and P.J. Wilbur, "A Review of Manufacturing and Characterization Activities at Proel on a Plasma Bridge Neutralizer for the RIT 10 Thruster," A1AA Paper 90-2588, July 1990.
154) Wilbur, P.J., J.R. Beattie and J. Hyman, Jr., "An Approach to the Parametric Design of Ion Thrusters," J. Prop. and Power, V. 6, No. 5, Sept.-Oct. 1990, pp. 575-583.
155) Wei, R., P.J. Wilbur, D.L. Williamson and O. Ozturk, "Tribological Studies of Ultrahigh Dose Nitrogen-Implanted Iron and Stainless Steel," Nucl. Instrum. and Meth., V. B 59/60, 1991, pp. 731-736.
156) Williamson, D.L., O. Ozturk, S. Glick, R. Wei and P.J. Wilbur, "Microstructure of Ultrahigh-Dose, Nitrogen Implanted Iron and Stainless Steel," Nucl. Instrum. and Meth., V. B 59/60, 1991, pp. 737-741.
157) Wei, R., P.J. Wilbur, W.S. Sampath, D.L. Williamson and Li Wang, "Effects of Ion Implantation Conditions on the Tribology of Ferrous Surfaces," J. Tribology, V. 113, Jan. 1991, pp. 166-173.
158) Williams, J.D. and P.J. Wilbur, "Experimental Study of Plasma Contactor Phenomena," J. Spacecraft and Rockets, V. 27, No. 6, Nov./Dec. 1990, pp. 634-641.
159) Williams, J.D. and P.J. Wilbur, "Plasma Contactor Research - 1990," NASA CR-187097, Jan. 1991.
160) Monheiser, J. M., J.D. Williams and P.J. Wilbur, "Plasma Contactor Get- Away-Special Experiment," AIAA Student Journal, V. 28, No. 4, Winter 1990/1991, pp. 22-23.
161) Monheiser, J.M. and P.J. Wilbur, "Advanced Electric Propulsion Research- 1990, NASA CR-187103, Jan. 1991.
162) Arakawa, Y. and P.J. Wilbur, "Finite Element Analysis of Plasma Flows in Cusped Discharge Chambers," J. Propulsion & Power, V. 7, No. 1, Jan./Feb. 1991, pp. 125-128.
163) Williamson, D.L., R. Wei and P.J. Wilbur, "Effects of Rapid, High-dose, Elevated Temperature Ion Implantation on the Microstructure and Tribology of Ferrous Surfaces," Nucl. Instrum. and Meth., B 56/57, 1991, pp. 625-629.
164) Williams, J.D. and P.J. Wilbur, "An Experimental Investigation of Hollow Cathode-Based Plasma Contactors," NASA CR-187120, May 1991.
165) Sarma, S.V., W.S. Sampath, N. Subramanian and P.J. Wilbur, "Metal Coating Method," U.S. Patent No. 5,032,421, July 16, 1991.
166) Wilbur, P.J. and R. Wei, "A Metal Ion Implanter Based on Ion Thruster Technology," International Electric Propulsion Conference Paper 91-065, Viareggio, Italy, Oct. 14, 1991.
167) Free, B., J. Owens and P.J. Wilbur, "Variations of Triple-Grid Geometry and Potentials to Alleviate Accel Grid Erosion," International Electric Propulsion Conference Paper 91-047, Viareggio Italy, Oct. 14-17, 1991.
168) Erdemir, A., M. Switala, R. Wei and P. Wilbur, "A Tribological Investigation of the Graphite-to-Diamondlike Behavior of Amorphous Carbon Films Ion-Bean-Deposited on Ceramic Substrates," Surf. and Coatings Tech., V. 50, 1991, pp. 17-23.
169) Williams, J.D. and P.J. Wilbur, "Experimental Study of Plasma Contactor Phenomena," Russian Translation in Aero/Cosmocheskaya Techika, No. 11, Nov. 1991, pp. 3-10.
170) Wilbur, P.J., R.G. Jahn, and F.C. Curran, "Space Electric Propulsion Plasmas," IEEE Trans. on Plasma Sci., V. 19, No. 6, Dec. 1991, pp. 1167-1179.
171) Wilbur P.J., "Plasma Contactor Research-1991," NASA CR-189140, April 1992.
172) Wei, R., P.J. Wilbur and F.M. Kustas, "A Rolling Contact Fatigue Study of Hard Carbon Coated M-50 Steel," J. Tribology, V. 114, No. 2, April 1992, pp. 298-303.
173) Wei, R., P.J. Wilbur, A. Erdemir and F.M. Kustas, "The Effects of Beam Energy and Substrate Temperature on the Tribological Properties of Hard-Carbon Films on Aluminum," Surf. and Coatings Tech., V. 51, 1992, pp. 139-145.
174) Williamson, D.L., I. Ivanov, R. Wei and P.J. Wilbur, "Role of Chromium in High-Dose, High-Rate, Elevated Temperature Nitrogen Implantation of Austenitic Stainless Steels," Mat. Sci. Soc. Symp. Proc., V. 235, 1992, pp. 473-478.
175) Wilbur, P.J. and R. Wei, "High-Current-Density Metal-Ion Implantation," Rev. Sci. Instrum., V. 63, No. 4, April 1992, pp. 2491-2493.
176) Kustas, F.M., M.S. Misra, R. Wei, P.J. Wilbur, J.A. Knapp, "High Temperature Nitrogen Implantation of Ti-6Al-4V I: Microstructure Characterization," Surf. and Coatings Tech., V. 51, 1992, pp. 100-105.
177) Kustas, F.M., M.S. Misra, R. Wei and P.J. Wilbur, "High Temperature Nitrogen Implantation of Ti-6Al-4V II: Tribological Properties," Surf. and Coatings Tech., V. 51, 1992, pp. 106-111.
178) Wei, R., P.J. Wilbur, D.L. Williamson and O. Ozturk, "Tribological and Microstructural Studies of Oxygen-Implanted Ferrite and Austenite," Surf. and Coatings Tech., V. 51, 1992, pp. 133-138.
179) Friedly, V.J. and P.J. Wilbur, "High Current Hollow Cathode Phenomena," J. Prop. and Power, V. 8, No. 3, May-June 1992, pp. 635-643.
180) Chabica, M., D.L. Williamson, R. Wei and P.J. Wilbur, "Corrosion Properties of Nitrogen-Ion-Implanted AISI 304 Stainless Steel in a Simulated Human Body Environment," Surf. and Coatings Tech., V. 51, 1992, pp. 24-29.
181) Monheiser, J.M. and P.J. Wilbur, "An Experimental Study of Impingement Ion Production Mechanisms," AIAA Paper 92-3826, July 1992, Nashville, TN.
182) Monheiser, J.M. and P.J. Wilbur, "Advanced Electric Propulsion Research - 1991," NASA CR-190761, October 1992.
183) Wei, R. and P.J. Wilbur, "The Tribological Characteristics of Diamond-like-Carbon-Coated Pure Iron and 304 Stainless Steel," Proceedings of China International Symposium for Youth Tribologists, Chinese Academy of Sciences, August 1992, pp. 160-67.
184) Wilbur, P.J., "Ion Propulsion," McGraw Hill Encyclopedia of Science and Technology, McGraw-Hill, 7th Ed., 1992, pp. 375-381.
185) Williams, J.D. and P.J. Wilbur, "Electron Emission from a Hollow-Cathode-Based Plasma Contactor," J. Spacecraft and Rockets, V. 29, No. 6, Nov. - Dec. 1992, pp. 820-829.
186) Kustas, F.M., M.S. Misra, R. Wei and P.J. Wilbur, "Diamond-like
Carbon Coatings on Ti-6Al-4V," Tribology Transactions, V. 36, No. 1, 1993,
pp. 113-119.
187) Wei, R., P.J. Wilbur, M-J. Liston, and G. Lux, "Rolling-Contact-Fatigue
Wear Characteristics of Diamond-like Hydrocarbon Coatings on Steels," Wear,
V. 162-164, 1993, pp. 558-568.
188) Williamson, D.L., I.L. Singer, R. Wei and P.J. Wilbur, "Amorphous Fe-Ti-C Phase Produced by Ion Implantation of Iron and it's role in Tribological Behavior," Nucl. Instrum. and Meth., V. B76, 1993, pp. 210-212.
189) Wei, R., P.J. Wilbur and M-J. Liston, "Effects of diamond-like hydrocarbon films on rolling contact fatigue of bearing steels," Diamond and Related Mat., V.2, 1993, pp. 898-903.
190) Buchholtz, B. and P.J. Wilbur, "An Investigation of Conducted and Radiated Emissions from a Hollow-Cathode Plasma Contactor," NASA CR-191173, July 1993.
191) Wilbur, Paul J., "Ultrahigh-Current-Density Metal-Ion Implantation and Diamondlike-Hydrocarbon Films for Tribological Applications," Argonne National Laboratory Report ANL/OTM/CR-4, September 1993.
192) Kameyama, I. and P.J. Wilbur, "Characteristics of Ions Emitted from High-Current Hollow Cathodes," Paper IEPC-93-023, Proceedings of 23rd International Electric Propulsion Conference, Seattle, WA., September 1993.
193) Monheiser, J. and P.J. Wilbur, "Effects of Design and Operating Conditions on Acceleratore-Grid Impingement Current," Paper IEPC-93-174, Proceedings of 23rd International Electric Propulsion Conference, Seattle, WA., September 1993.
194) Parks, D.E., Ira Katz, B. Buchholtz and P. Wilbur, "Expansion and
electron emission characteristics of a hollow-cathode plasma contactor,"
J. Appl. Phys., V. 74, pp. 7094-7100, 1993.
195) Buchholtz, B.W., P.J. Wilbur, and C.K. Purvis, "An Experimental
Investigation of Conducted and Radiated Emissions from a Hollow-Cathode
Plasma Contactor," AIAA Paper 94-0333, AIAA Aerospace Sciences Meeting,
Reno, NV, Jan. 1994.
196) Erdemir, A., F.A. Nichols, X.Z. Pan, R. Wei and P.J. Wilbur, "Friction and Wear Performance of Ion-Beam Deposited Diamond-like Carbon Films on Steel Substrates," Diamond and Related Mat., V.3, 1993, pp. 119-125.
197) Wei, Ronghua, Paul J. Wilbur and Samuel C. Wu, "Method and Apparatus for Testing Parts and Materials in a Controlled Environment Such as an Atomic Oxygen Atmosphere," U.S. Patent No. 5,281,535, Jan. 25, 1994.
198) Monheiser, J.M. and P.J. Wilbur, "Development and Verification of a Model to Predict Impingement Currents for Ion Thrusters," NASA CR-195322, April 1994.
199) Wilbur, P.J. and B.W. Buchholtz, "Surface Engineering using Ion Thruster Technology," AIAA Paper 94-3235, Joint Propulsion Conference, June 1994, Indianapolis, IN.
200) Zhang, Quan, Xiaohang Peng, Jeff M. Monheiser, Paul J. Wilbur and Dennis Keefer, "Comparisons between Simulation and Experimental Results for Ion Thrusters with Oversized Grid Apertures," AIAA Paper 94-3122, Joint Propulsion Conference, June 1994, Indianapolis, IN.
201) Jongeward, G., I. Katz, B. Buchholtz, S. Snyder and P. Wilbur, "Conductive Nature of Low Frequency (f<1 MHz) Electromagnetic Fields Generated by a /Hollow Cathode Plasma Contactor," AIAA Paper 94-3313, Joint Propulsion Conference, June 1994, Indianapolis, IN.
202) Cooper, C.V., C.P. Beetz, Jr., B.W. Buchholtz, P.J. Wilbur and R. Wei, "Spectroscopic and selected mechanical properties of diamond-like carbon films," Diamond and Related Mat., V.3, 1 April 1994, pp. 534-541.
203) Erdemir, A., F.A. Nichols, X.Z. Pan, R. Wei and P. Wilbur, "Friction and wear performance of ion-beam-deposited diamond-like carbon films on steel substrates," Diamond and Related Mat., V.3, 1 April 1994, pp. 119-125.
204) Williamson, D.L., O. Ozturk, R. Wei and P. Wilbur, "Metastable phase formation and enhanced diffusion in f.c.c. alloys under high does, high flux nitrogen implantation at high and low ion energies," Surf. and Coatings Tech., V.65, 1994, pp. 15-23.
205) Wei R., B. Shogrin, P.J. Wilbur, O.Ozturk, D.L. Williamson, I. Ivanov, E. Metin, "The Effects of Low-Energy-Nitrogen-Ion Implantation on the Tribological and Microstructural Characteristics of AISI 304 Stainless Steel," J. Tribology, V.116, 1994, pp 870-876.
206) Miyoshi, K., S. Heidger, A.L. Korenyi-Both, D.T. Jayne, P. Herrera-Fierro, B. Shogrin, P.J. Wilbur, R.L.C. Wu, A. Garscadden and P.N. Barnes, "Physical and Tribological Charactersitics of Ion-Implanted Diamond Films," NASA Tech. Mem. 106682, Nov. 1994.
207) Wilbur, P.J. and J.S. Snyder, "Characteristics of Plasma Contactors for Spacecraft Charging Control," Proceedings of the Fourth International Conference of Tethers in Space," Smithsonian Institution, Washington, D.C., 10-14 April 1995, pp. 861-871.
208) Wei, R., P.J. Wilbur, B.W. Buchholtz and F.M. Kustas, "In Situ Tribological Evaluation of Greases and Solid Lubricants in a Simulated Atomic Oxygen Environment," Society of Tribologists and Lubrication Engineers Preprint No. 95-AM-8E-1, May 1995.
209) Snyder, J.S. and P.J. Wilbur, "Measurement of Noise Produced by a Plasma Contactor Operating in Ground-Based Facilities," 31st Joint Propulsion Conference Paper AIAA 95-2830, July 10-12, 1995, San Diego, CA.
210) Wei, R., P.J. Wilbur, B.W. Buchholtz and F.M. Kustas, "In Situ Tribological Evaluation of Greases and Solid Lubricants in a Simulated Atomic Oxygen Environment," Tribology Transactions, V.38, No. 4, 1995, pp. 950-958.
211) Shogrin, B., P.J. Wilbur, W.R. Jones, Jr., P. Herrera-Fierro, D.L. Williamson, "The Effects of Ion Implantation on the Tribology of Perfluoropolyether-Lubricated 440C Stainless-Steel Couples," Tribology Transactions, V. 39, 1996, pp. 507-516, STLE Preprint 95-TC-5A-1, Oct. 1995 and NASA Tech. Mem. 106965, Aug. 1995.
212) Erdemir, A., C. Bindal, J.Pagan and P. Wilbur, "Characterization of transfer layers on steel surfaces sliding against diamond-like hydrocarbon films in dry nitrogen," Surf. and Coatings Tech., V.76-77, 1995, pp. 559-563.
213) Wilbur, P.J., "Dual-Use Applications of Ion-Thruster Technology," Proc. of Space Technology and Applications International Forum, Albuquerque, NM, ed. M.S. El-Genk, Amer. Inst. of Physics Conf. Proc. 361, 1996, pp. 155-162.
214) Qui, X., A. Elmoursi, G. Malaczynski, A. Hamdi, P. Wilbur and B. Buchholtz, "A Diamond-Like Carbon Coating for Aluminum Alloy Piston/Bore Application," SAE Paper 960014, Int'l Congress & Exposition, Detroit, MI, Feb. 1996. Reprinted from Design and Development of New Engines and Components (Society of Automotive Engineers Publication SP-1138)
215) Wilbur, P.J. and B.W. Buchholtz, "Engineering tribological surfaces by ion implantation," Surf. and Coatings Tech., V.79, 1996, pp. 1-8.
216) Barker, T.R. and P.J. Wilbur, "Impingement-Current Erosion Characteristics of Accelerator Grids on Two-grid Thrusters," AIAA Paper 93-3201, 32nd Joint Propulsion Conference, July 3, 1996, Lake Buena Vista, Florida.
217) Kameyama, I. and P.J. Wilbur, "Zenith-angle Distributions of Erosion Rates near High-current Hollow Cathodes," AIAA Paper 93-3208, 32nd Joint Propulsion Conference, July 3, 1996, Lake Buena Vista, Florida.
218) Wei, R., J.J. Vajo, J.N. Matossian, P.J. Wilbur, J.A. Davis, D.L. Williamson, G.A. Collins, "A comparative study of beam ion implantation, plasma ion implantation and nitriding of AISI 304 stainless steel," Surf. and Coatings Tech., V.83, 1996, pp. 235-242.
219) Wilbur, P.J., J.A. Davis, R. Wei, J.J. Vajo and D.L. Williamson, "High current density, low energy, ion implantation of AISI-M2 tool steel for tribological applications," Surf. and Coatings Tech., V.83, 1996, pp. 250-256.
220) Erdemir, A., C. Bindal, G.R. Fenske and P.J. Wilbur, "Tribological Properties of Hard Carbon Films on Zirconia Ceramics," Tribology Transactions, V.39, No. 3, 1996, pp. 735-744.
221) Wilbur, P.J., "High-Current-Density Boron Implantation for Tribological Applications," Proceedings of the 7th Symposium on Beam Engineering of Advanced Material Syntheses, Tokyo, Japan, November 18-19, 1996, pp. 29-36.
222) Langlade, C. and P. Wilbur, "Effect of different a:C-H films on the fretting behavior of bearing steel," Diamond and Related Mat., V.5, 1996, pp. 1143-1151.
223) Erdemir, A., C. Bindal, G.R. Fenske, C. Zuiker, and P. Wilbur, "Characterization of transfer layers forming on surfaces sliding against diamond-like carbon," Surf. and Coatings Tech., V.86-87, 1996, pp. 692-697.
224) Byeli, A.V., V.A. Kukareko, O.V. Lobodaeva, P.J. Wilbur, and J.A. Davis, "High current density ion implantation and its application to improve the wear resistance of ferrous materials," Wear, V. 203-204, 1997, pp. 596-607.
225) Williamson, D.L., J.A. Davis, P.J. Wilbur, J.J. Vajo, R. Wei, and J.N. Matossian, "Relative roles of ion energy, ion flux, and sample temperature in low-energy nitrogen ion implantation of Fe-Cr-Ni stainless steel," Nucl. Instrum. and Meth., V. B127/128, 1997, pp. 930-934.
226) Snyder, J.S. and P.J. Wilbur, "An Investigation of Fullerene Propellant for RF Ion Thrusters," Proceedings of the 25th International Electric Propulsion Conference, Paper 97-075, August 24-28, 1997, Cleveland, OH.
227) Kameyama, I. and P.J. Wilbur, "Effects of External Flow near High-current, Hollow Cathodes on Ion Energy Distributions," Proceedings of the 25th International Electric Propulsion Conference, Paper 97-173, August 24-28, 1997, Cleveland, OH
228) Kameyama, I., J.M. Monheiser, and P.J. Wilbur, "A Numerical Model of Thruster-Exhaust Plumes," Proceedings of the 25th International Electric Propulsion Conference, Paper 97-180, August 24-28, 1997, Cleveland, OH.
229) Wilbur, P.J., J.A. Davis, D.L. Williamson, J.J. Vajo and R. Wei, "High current-density broad-beam boron ion implantation," Surf. and Coatings Tech., V.96, 1997, pp. 52-57.
230) Erdemir, A., G.R. Fenske, J. Terry, P. Wilbur, "Effect of source gas and deposition method on friction and wear performance of diamondlike carbon films," Surf. and Coatings Tech., V.94-95, 1997, pp. 525-530.
231) Erdemir, A., G.R. Fenske and P. Wilbur, "High-temperature Durability and Tribological Performance of Diamond and Diamondlike Carbon Films," Protective Coatings and Thin Films, Y. Pauleau and P.B. Barna (eds.), 1997, pp. 169-184. Proceedings of NATO Advanced Research Workshop, May 1996, Portimao, Algarve, Portugal.
232) Byeli, A.V., V.A. Kukareko, O.V. Lobodaeva, S.K. Shykh, J.A. Davis, and P.J. Wilbur, "Structure and wear resistance of 20X13 steel ion-implanted with nitrogen at a high beam-current density," Surf. and Coatings Tech., V.96, 1997, pp. 255-261.
233) Kameyama, I. and P.J. Wilbur, "Potential-Hill Model of High-Energy Ion Production near High-Current Hollow Cathodes," International Symposium on Space Technology and Science Paper ISTS 98-a-2-17, Sonic City, Omiya, Japan, May 1998.
234) Kameyama, I. and P.J. Wilbur, "A Numerical Study of Ion-Thruster Design/Operating-Condition Effects on Exhaust-Plume Properties," Joint Propulsion Conference Paper AIAA-98-3794, Cleveland, OH, July 1998.
235) Davis, J.A., P.J. Wilbur, D.L. Williamson, R. Wei and J.J. Vajo, "Ion implantation boriding of iron and AISI M2 steel using a high-current density, low energy broad-beam ion source," Surf. and Coatings Tech., V.103-104, 1998, pp. 52-57.
236) Williamson, D.L., J.A. Davis and P.J. Wilbur, "Effects of austenitic steel composition on low-energy, high-flux ion beam processing," Surf. and Coatings Tech., V.103-104, 1998, pp. 178-184.
237) Wilbur, P.J., V.K. Rawlin and J.R. Beattie, "Ion Thruster Development Trends and Status in the United States," J. Prop. and Power, V. 14, No. 5, Sept.-Oct. 1998, pp. 708-715.
238) Davis, J.A. and P.J. Wilbur, "Boron Ion Implantation for Tribological Applications," Friction and Wear (Belarus), V. 18, No. 6, Nov.-Dec. 1997, pp. 722-728.
239) Burtner, D. and P.J. Wilbur, “Plasma Contacting with a Solid Expellant,”
AIAA Paper 99-0381, 37th Aerospace Sciences Conference, Jan 1999, Reno,
NV.