C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 19/00 (2006.01) C01B 19/02 (2006.01) C23C 14/06 (2006.01) G03G 5/08 (2006.01) G03G 5/082 (2006.01)
Patent
CA 2044321
Disclosed is a process for treating particles of selenium alloy to reduce fractionation when the particles are subsequently vacuum evaporated onto a substrate which comprises (1) heating particles of an alloy of selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof while said particles are exposed to oxygen; (2) exposing the particles to water vapor; and (3) subjecting the particles previously exposed to oxygen and water vapor to a vacuum. Also disclosed is a process which comprises (1) providing particles of an alloy of selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof; (2) forming selenium oxide on the surfaces of the particles; (3) converting the selenium oxide on the particle surfaces to selenious acid; and (4) removing the selenious acid from the particle surfaces.
Badesha Santokh S.
Elder Fred A.
Hordon Monroe J.
Kowalczyk Lawrence E.
Laforce Roger W.
Sim & Mcburney
Xerox Corporation
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