Method of making yttrium silicon oxy compound
First Claim
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1. A method of making a duo metal oxy compound, comprising:
- (a) mixing a powdered hydrated nitrate of a metal selected from the group consisting of cerium and yttrium with silica in molar equivalent amounts to yield, upon heating, a dual oxide compound of silicon and said metal;
(b) agitatingly heating said mixture to the melt and the decomposition temperature of the nitrate; and
(c) heating said mixture resulting from step (b) to a temperature from 1300°
to 1550°
C. and for a period of time from 2 to 5 hours, and sufficient for the silica and decomposed metal nitrate to chemically react and form a dual oxide compound of silicon and said metal.
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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°-370° C.), the melt encapsulating the silica particles; and (c) heating the sludge to a temperature (1300°-1550° 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.
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10 Claims
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1. A method of making a duo metal oxy compound, comprising:
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(a) mixing a powdered hydrated nitrate of a metal selected from the group consisting of cerium and yttrium with silica in molar equivalent amounts to yield, upon heating, a dual oxide compound of silicon and said metal; (b) agitatingly heating said mixture to the melt and the decomposition temperature of the nitrate; and (c) heating said mixture resulting from step (b) to a temperature from 1300°
to 1550°
C. and for a period of time from 2 to 5 hours, and sufficient for the silica and decomposed metal nitrate to chemically react and form a dual oxide compound of silicon and said metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification