Optically translucent ceramic

Details Optically translucent ceramic Optically translucent ceramic

C - Chemistry, Metallurgy

04

B

25/128

C04B 35/18 (2006.01) C04B 35/645 (2006.01)

Patent

CA 1199780

OPTICALLY TRANSLUCENT CERAMIC Abstract of the Disclosure Optically translucent theoretically dense body of mullite is produced by pressing an amorphous mixed oxide powder composition of from about 72.5 weight % to about 76.5 weight % Al2O3/balance SiO2 into a compact of density of at least 1.0 g/cc, sintering the compact in oxygen or a vacuum of 0.05 torr to 1 torr producing a gas-impermeable compact, hot isostatically pressing the gas-impermeable compact to theoretical density, and with respect to compositions ranging from higher than about 74 wt % Al2O3/balance SiO2, annealing the theoretically dense body.

414545

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