Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Patent
1995-05-19
1998-04-07
Turner, Archene
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
423446, B01J 306
Patent
active
057362521
ABSTRACT:
Diamond film with substantially no non-diamond carbon and a high thermal conductivity is deposited by means of a direct current arc jet apparatus with a substrate temperature below about 975 degrees Celsius, an arc power of between about 20 and 40 kw. a pressure of about 12 torr, and an enthalpy greater than 30 from a activated gas jet fed with hydrogen and methane, the methane being supplied at a concentration of less than 0.07%. The resulting material has a high transparency and thermal conductivity.
Also disclosed is the use of the diamond material made by the present method for cutting tool applications, particularly milling.
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Bigelow Louis K.
Cann Gordon L.
Gray Kevin J.
Lu Grant
Simpson Matthew A.
Saint-Gobain/Norton Industrial Ceramics Corp.
Turner Archene
Ulbrich Volker R.
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