United States of America As Represented by the Secretary of the Air Force

Somuri V Prasad

Andrey A Voevodin

Jeffrey S Zabinski

Karl R Mecklenburg

Nanocrystalline carbide/diamond-like carbon composite films and synthesis method near room temperature are described wherein combined magnetron sputtering and pulsed laser ablation produce plasma fluxes intersecting on a substrate surface to form metal carbide and diamond-like carbon composite films of about 10 to 50 nm carbide crystallites encapsulated in a sp.sup.3 bonded amorphous diamond-like carbon matrix having a hardness of about 32 GPa and high plasticity, high toughness in contact loading and low friction coefficient.

Load-adaptive nanocrystalline carbon/amorphous diamond-like carbon

A self-lubricating aluminum alloy bearing material which can be used in vacuum, dry or moist environments which consists essentially of about 0.5 to 25, preferably about 5-20 volume percent of hard ceramic particles and about 1 to 7, preferably 3-5 volume percent of at least one solid lubricant, balance an aluminum alloy.

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Dayton, OH, United States of America

Somuri V Prasad