Method of making yttrium silicon oxy compound

Details Method of making yttrium silicon oxy compound Method of making yttrium silicon oxy compound

1985-12-24

1987-02-03

Carter, H. T.

Chemistry of inorganic compounds

Rare earth compound

423326, C01F 1700

Patent

active

046408266

ABSTRACT:
A method is disclosed of making yttrium silicon oxy compounds, comprising: (a) mixing powdered hydrated metal nitrate with silica in molar equivalent amounts to yield upon heating a desired duo metal oxy compound; (b) agitatingly heating said mixture to melt and decomposition temperatures for the nitrate (e.g., 340.degree.-370.degree. C.), the melt encapsulating the silica particles; and (c) heating the sludge to a temperature (1300.degree.-1550.degree. C.) for a period of time (2-5 hours) effective to stimulate chemical reaction between the decomposed nitrate and silica to form yttrium silicon oxide.

REFERENCES:
patent: 2640756 (1953-06-01), Wills
patent: 4401617 (1983-08-01), Ezis et al.
Wanklyn et al, "J. of Materials Science", vol. 9, #12, 1974, pp. 2007-2014.

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