Heat sinks and process for producing the same

Details Heat sinks and process for producing the same Heat sinks and process for producing the same

1995-03-28

1998-07-28

Speer, Timothy

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428328, 428408, 428688, 428698, 165905, 501 87, 501 90, B32B 1900

Patent

active

057860750

ABSTRACT:
Provided is a heat sink which has excellent processability and is economical, even though it employs diamond, as well as, a process for producing the same. The heat sink is molded using a composition obtained by adding a diamond powder of 0.1 to 100 .mu.m high-purity diamond particles to cemented carbide primarily of WC and a balance of at least one metal selected from Co, Ni and Fe along with impurities. The proportion of the diamond powder admixed relative to the cemented carbide is preferably 5 to 90%, and the diamond heat sink is produced by sintering the particulate mixture of diamond, WC, Co, etc. at a temperature of 1200.degree. to 1500.degree. C. under a pressure of 3 to 6 GPa.

REFERENCES:
patent: 4902652 (1990-02-01), Kume
patent: 5270114 (1993-12-01), Herb

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