Compositions: ceramic – Ceramic compositions – Refractory
Patent
1990-08-09
1992-03-17
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
501 96, 501118, 501153, 501904, 501125, C04B 3558, C04B 3520
Patent
active
050968629
ABSTRACT:
This invention provides a transparent ceramic article comprising aluminum oxide and aluminum magnesium oxynitride. The ceramic article of the present invention is useful in applications where it is desirable to have an optically transparent ceramic including, for example, in orthodontic brackets, ferrules, and gas tight envelopes.
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patent: 4686070 (1987-08-01), Maguire et al.
patent: 4720362 (1988-01-01), Gentilman et al.
"Study on the Reductive Spinel-A New Formula AlN-Al.sub.2 O.sub.3 Instead of the Previous One Al.sub.2 O.sub.4 " Bull. Chem. Soc. Jap., 32 (11), Nov. 1959, pp. 1264-1265.
"On the Formation of High Temperature Nonstoichiometric Spinels and Derivative Phases, In Several Oxide Systems Based on Alumina and in the System Aluminum Nitride Alumina," Rev., Hautes, Temper. et Refract., Ch. 5, 1, 1964, pp. 58-95.
"The System Al-Mg-O-N", J. Am. Ceram. Soc., 65, (5-6), 1982, pp. C-68-69.
"A Simple Model for Aluminum Oxynitride Spinels", J. Am. Ceram. Soc., 61, (708), 1978, pp. 372-373.
"Phase Relationships in the System Mg-Al-O-N", Sun et al., Chinese Science Bulletin, vol. 35, No. 14, [Jul. 1990] pp. 1189-1192.
Frey Robert G.
Mathers James P.
Dixon Jr. William R.
Griswold Gary L.
Kirn Walter N.
Marcantoni Paul
Minnesota Mining and Manufacturing Company
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