The immobilization of proteins on insoluble surfaces is important in diagnostic instrumentation and in vivo monitor-ing. improvements in the surface antibody interactions should result in more efficient approaches to immuno- diagnostics. this would be especially useful in the field of tumor marker… More

The objective of the proposed research project is to investigate the use of a novel, gradient-composition, sputtered-oxide film for improving the bonding between metaland ceramic in porcelain-fused-to-mental dental restorations. the present process utilizes a discrete oxidelayer formed by diffusion… More

Cathodes electrophoretically coated with lanthanum hexaboride (lab6) are in general porous, rough, and mechanically fragile rods of lab6 must be indirectly heated which complicates the cathode design. this proposal is a study of the electron emission characteristics of sputtered deposited lab6 to… More

Polyimide materials, notably kapton, find use in the outer coverings of space vehicles for purposes such as thermal insulation. while exposed to the ram atomic oxygen present in a low-earth orbital environment, the kapton under-goes a degradation process. it has already been found that a coating of… More

Alkali metal thermal to electric converter (amtec) technology holds promise as an advanced power conversion system for aerospace an terrestrial applications. it offers high efficiency and high temperature in a modular configuration, and can be made very rugged and compact by employing thin film… More

Oxide coatings previously developed to protect polyimide and carbon/carbon composites in low earth orbit are brittle and crack upon flexing. Adding small amounts of polytetrafluoroethylene (PTFE) increases coating flexibility but reduces atomic oxygen (AO) resistance and mechanicall durability.… More