Process for improving the properties of oxysulfide phosphor mate

Details Process for improving the properties of oxysulfide phosphor mate Process for improving the properties of oxysulfide phosphor mate

1976-11-29

1978-08-15

Cooper, Jack

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C09K 1146

Patent

active

041070704

ABSTRACT:
A process is described for improving the properties of a phosphor material comprising an oxysulfide that has been subjected to grinding, in which the phosphor material is heated while exposed to an oxygen-containing atmosphere at a temperature of about 600.degree. to about 1000.degree. C. The processed phosphor material can be used, for instance, in x-ray screens.

REFERENCES:
patent: 3563909 (1971-02-01), Schuil et al.
patent: 3705858 (1972-12-01), Luckey et al.
patent: 3904546 (1975-09-01), Mattis et al.
Martin et al., "Technical Notes," (RCA), 12/11/68.

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