AVS 47th International Symposium
    Surface Engineering Tuesday Sessions
       Session SE-TuA

Invited Paper SE-TuA1
Surface Engineering by Plasma Immersion Ion Processing

Tuesday, October 3, 2000, 2:00 pm, Room 201

Session: Surface Engineering: Surface Preparation to Postcoating Surface Finishing
Presenter: M.A. Nastasi, Los Alamos National Laboratory
Correspondent: Click to Email
Ion beam processing, including ion implantation and ion beam assisted deposition (IBAD), are established surface modification techniques which have been used successfully to synthesize materials for a wide variety of tribological applications. In spite of the flexibility and promise of the technique, ion beam processing has been considered too expensive for mass production applications. However, an emerging technology, Plasma Immersion Ion Processing (PIIP), has the potential of overcoming these limitations to become an economically viable tool for mass industrial applications. In PIIP, targets are placed directly in a plasma and then pulse biased to produce a non-line-of-sight process for intricate target geometries without complicated fixturing. If the bias is a relatively high negative potential (20-100kV) ion implantation will result. At lower voltages (50-1200V), deposition occurs. Potential applications for PIIP are in low-value-added products such as tools used in manufacturing, orthopedic devices, and the production of optical coatings. This talk will focus on the technology and materials science associated with PIIP.