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Title: Method for producing ceramic composition having low friction coefficient at high operating temperatures

A method for producing a stable ceramic composition having a surface with a low friction coefficient and high wear resistance at high operating temperatures. A first deposition of a thin film of a metal ion is made upon the surface of the ceramic composition and then a first ion implantation of at least a portion of the metal ion is made into the near surface region of the composition. The implantation mixes the metal ion and the ceramic composition to form a near surface composite. The near surface composite is then oxidized sufficiently at high oxidizing temperatures to form an oxide gradient layer in the surface of the ceramic composition.
Inventors:
 [1]
  1. (San Antonio, TX)
Issue Date:
OSTI Identifier:
866731
Assignee:
Southwest Research Institute (San Antonio, TX) OSTI
Patent Number(s):
US 4775548
Contract Number:
N3352
Country of Publication:
United States
Language:
English
Subject:
method; producing; ceramic; composition; friction; coefficient; operating; temperatures; stable; surface; wear; resistance; deposition; film; metal; implantation; portion; near; region; mixes; form; composite; oxidized; sufficiently; oxidizing; oxide; gradient; layer; surface region; near surface; ceramic composition; operating temperature; operating temperatures; wear resistance; friction coefficient; producing ceramic; /427/