Sintered titanium-graphite composite and method of making

Details Sintered titanium-graphite composite and method of making Sintered titanium-graphite composite and method of making

1996-10-07

1998-05-26

Jenkins, Daniel J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making porous product

419 11, 419 17, 419 26, 419 38, 419 39, 419 57, 419 45, 419 60, 75231, 75237, 75245, 264DIG36, B22F 312

Patent

active

057582530

ABSTRACT:
A process for producing sintered titanium-graphite having improved wear resistance and low frictional characteristics is described. The said process which produces titanium-graphite composites having a triphasic structure with controlled porosity and a graphite lubricating film, comprises sintering a mixture of titanium and graphite powders in which the percentage of graphite may vary from 4 to 8 percent at temperatures from about 800.degree. C. to 1600.degree. C., for about 1/2 to 2 hours, under a compaction pressure of 0.17 to 0.62 MPa. The composites have applications in biomedical engineering and other fields of engineering due to their biocompatibility, strength and improved wear resistance.

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