Pyrolytic boron nitride coated boat for metal vaporization

Details Pyrolytic boron nitride coated boat for metal vaporization Pyrolytic boron nitride coated boat for metal vaporization

C - Chemistry, Metallurgy

23

C

32/23, 117/85

C23C 14/24 (2006.01) C04B 41/50 (2006.01) C04B 41/87 (2006.01)

Patent

CA 1115604

ABSTRACT OF THE DISCLOSURE Resistance heated vaporization boats for the vacuum vaporization of metals are made by machining graphite stock to boat shape, encapsulating the boat in pyrolytic boron nitride and then exposing the graphite surfaces of the ends of the boat to provide electrical contact.

318961

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