Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1993-07-21
1994-05-31
Turner, A. A.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283073, 4283077, 4283122, 4283128, 428408, 428688, B32B 326
Patent
active
053168429
ABSTRACT:
The present invention comprises an article formed from a plurality of non-diamond particles compatible with diamond deposition preformed into a desired shape. Each of the particles has first surface regions in contact with immediately adjacent other ones of the particles, and second surface regions spaced apart from the immediately adjacent other ones of said particles to define boundaries of inter-particle voids between the immediately adjacent ones of the particles. The voids are infiltrated with high thermal conductivity CVD diamond material continuously coating the second surface regions of the particles and comprising merged growth fronts from the second surface regions of individual immediately adjacent ones of the particles into the inter-particle voids. The high thermal conductivity CVD diamond material has an average crystallite size greater than about 15 microns, an intensity ratio of diamond- Raman-peak-to-photoluminescence background intensity greater than about 20, a maximum intensity of the diamond Raman peak in counts/sec divided by the intensity of photoluminescence at 1270 cm.sup.-1 greater than about 3, a Raman sp.sup.3 full width half maximum less than about 6 cm.sup.-1 and a diamond-to-graphite Raman ratio greater than about 25. The thermal conductivity of the CVD diamond material is in excess of 17 Wcm.sup.-1 K.sup.-1.
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patent: 4434188 (1984-02-01), Kamo et al.
patent: 4988421 (1991-01-01), Drawl et al.
patent: 5009923 (1991-11-01), Ogata et al.
patent: 5015528 (1991-05-01), Pinneo
patent: 5037704 (1991-08-01), Nakai et al.
patent: 5082359 (1992-01-01), Kirkpatrick
Gardinier Clayton F.
Herb John A.
Pinneo John M.
Crystallume
Turner A. A.
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