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plasma chamber

Welcome to

Electric Propulsion & Plasma Engineering

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Lab experiement

Our Research

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Tell about the research in general terms. Should be understood by general audience, not just peers. Add picture. 

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Department News

Graduate student JJ Moritz and Professors John Williams and Leslie Stone-Roy have been featured on CSU's SOURCE for their work on a sensory substitution device that converts sound to electrical impulses detected by the tongue.
Short description
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CEPPE News

  • Graduate student JJ Moritz and Professors John Williams and Leslie Stone-Roy have been featured on CSU’s SOURCE for their work on a sensory substitution device that converts sound to electrical impulses detected by the tongue.
  • In 2011, John Williams received the university-wide Jack E. Cermak Outstanding Advisor Award that honors excellence in academic advising, including recognition by students and peers as an outstanding advisor; capacity to offer career as well as academic advising.
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Publications

Recent selected Journal Articles

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Publications

Publications by year

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  • Cramer, C.L.; Farnell, C.C.; Farnell, C.C.; Geiss, R.H.; Williams, J.D. Thermoelectric Properties and Morphology of Si/SiC Thin-Film Multilayers Grown by Ion Beam Sputtering. Coatings 2018, 8, 109. doi:10.3390/coatings8030109

Publications

Publications by researcher

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Student Involvement

Senior Design

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  • Project 1
  • Project 2
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Ion Propulsion Research at CSU: A Legacy of Innovation

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Ion propulsion research at CSU began in the mid-1960s when scientists Bill Michelson and Lionel Baldwin brought their NASA Glenn expertise to campus. With Virgil Sandborn, they built a large vacuum chamber to study ion thrusters and ion beam neutralization. A breakthrough came when they inserted a thoriated tungsten wire into the ion source, solving space-charge issues by releasing electrons more effectively.

In 1968, Dr. Paul J. Wilbur joined CSU and eventually led the Ion Propulsion Research Facility and Plasma Engineering Research Lab. Over the next four decades, the lab became internationally recognized for its work on broad beam ion sources for space and terrestrial applications.

Dr. John Williams, a former student of Dr. Wilbur, returned in 2002 to continue the legacy. He expanded the lab with new vacuum chambers and research spaces, focusing on erosion modeling of ion thruster components and plasma-material interactions. In 2004, he added the Advanced Sputtering Facility to study how spacecraft materials respond to low-energy xenon ions.

Beyond propulsion, CSU researchers explored ion-beam surface treatments to improve wear resistance and reduce friction in mechanical components. Facilities support testing in various environments, including atomic oxygen atmospheres simulating space.

The lab also investigates hollow cathode plasma contactors, essential for electrodynamic tethers and spacecraft charge control. These devices help convert orbital energy to electricity and prevent electrical interference in space missions.

Today, CSU remains a leader in electric propulsion, blending deep expertise with cutting-edge research.

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Real World Impact

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Project 1

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Project 2

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Electric Propulsion and Plasma Engineering Laboratory

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Our Research

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Opportunities for
Students

We are always looking for motivated graduate and undergraduate students to work on interesting projects related…

Industry Partnerships

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The Lab

Welcome to the Electric Propulsion & Plasma Engineering (CEPPE) Laboratory at Colorado State University.  The lab is directed by Professor of Mechanical Engineering John Williams. It is located at the Engineering Research Center
in Fort Collins, Colorado. 

The lab has been providing research, development, and testing since 1965.

More about the lab…

Real World Impact

How research impacts the world 

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Our Team

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Education

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Publications