Preform method of synthesizing a phosphor

Details Preform method of synthesizing a phosphor Preform method of synthesizing a phosphor

1981-03-20

1983-01-25

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

2523014R, 264 58, 264118, 264140, B28B 1100

Patent

active

043702872

ABSTRACT:
To synthesize a particulate phosphor, an intimate dry mixture of phosphor-producing compounds is pressed, as by uniaxial or isostatic pressing, to a self-supporting preform of the desired shape and to a prescribed density. Then, the preform is heated to a reaction temperature and cooled to produce a friable cake of phosphor particles. The cake is broken apart, and the phosphor particles are washed and dried.

REFERENCES:
patent: 2623858 (1952-12-01), Kroger
patent: 3502590 (1970-03-01), Royce et al.
patent: 3825436 (1974-07-01), Buchanan et al.
patent: 3883748 (1975-05-01), Nada et al.
patent: 4151442 (1979-04-01), Koga et al.

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