Composite synthetic materials

  • US 4,960,643 A
  • Filed: 03/31/1987
  • Issued: 10/02/1990
  • Est. Priority Date: 03/31/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. A composite article of manufacture comprising:

  • (a) a core formed of a hard, high strength solid material selected from the group consisting of diamond;

    synthetic diamond;

    amorphous carbon;

    graphite;

    a metal;

    a metal alloy;

    carbides, nitrides and oxides of tungsten, boron, titanium, zirconium, aluminum and chromium,(b) a thin layer of synthetic diamond-like material contiguously disposed, on the surface of said core and being bonded thereto,(c) said thin layer of synthetic diamond-like material being disposed completely around and forming an uninterrupted protective coating which completely surrounds said core,(d) a further layer of lubricating material contiguously disposed on said thin layer.

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