Claims
- 1. A coated dental burr adapted for high speed use comprising:
- (a) a dental burr substrate;
- (b) a coating on said substrate comprising an external layer of disordered boron and carbon.
- 2. The coated dental burr of claim 1 wherein the layer has composition on an atomic basis of B.sub.1 C.sub.1- x where x is from about 0.60 to about 0.90.
- 3. The coated dental burr of claim 2 wherein the disordered boron and carbon comprises amorphous material.
- 4. The coated dental burr of claim 2 wherein the disordered boron and carbon comprises polycrystalline material.
- 5. The coated dental burr of claim 2 wherein the disordered boron and carbon comprises microcrystalline material.
- 6. The coated dental burr of claim 2 adapted for use at a speed of at least 800,000 revolutions per minute.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of our commonly assigned, copending, U.S. application Ser. No. 535,352 filed Sept. 23, 1983, now abandoned for Disordered Boron-Carbon Wear Resistant Coating and Method.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
535352 |
Sep 1983 |
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