Transparent high temperature resistant aluminum silicon oxide mo

Details Transparent high temperature resistant aluminum silicon oxide mo Transparent high temperature resistant aluminum silicon oxide mo

1980-04-28

1981-08-25

Hoffman, James R.

Stock material or miscellaneous articles

Composite

Of silicon containing

106 65, 427164, 427380, 428702, C04B 3912, C04B 3510, C04B 3514

Patent

active

042860245

ABSTRACT:
High-temperature-resistant transparent monolithic member or coating on a substrate consisting of aluminum and silicon in an atom ratio of about 2:1 and in reacted oxide form. The member or coating is formed by reacting precursor alkoxides of aluminum and silicon in the presence of water or reacting precursors derived from these alkoxides, gelling the reacted precursors, and drying the gel in the form of a monolithic member or coating. The dried member is then heated to evolve all residual hydrogen and carbon and residual water and to eliminate porosity to form the monolithic member or coating.

REFERENCES:
patent: 3826813 (1974-07-01), Gardner et al.
patent: 3941719 (1976-03-01), Yoldas
Yoldas, "A Transparent Porous Alumina," American Ceramic Society Bulletin, vol. 54, No. 3, Mar. 1975, pp. 286-288.
Yoldas, "Thermal Stabilization of an Active Alumina and Effect of Dopants on the Surface Area," Journal of Materials Science, vol. 11, (1976), pp. 465-470.
Yoldas, "Alumina Sol Preparation from Alkoxides," American Ceramic Society Bulletin, vol. 54, No. 3, Mar. 1975, pp. 289-290.
Yoldas, "Preparation of Glasses and Ceramics from Metal Organic Compounds," Journal of Materials Science, vol. 12, (1977), pp. 1203-1208.

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