Process for producing polycrystalline cubic aluminum oxynitride

Details Process for producing polycrystalline cubic aluminum oxynitride Process for producing polycrystalline cubic aluminum oxynitride

1978-08-24

1980-12-23

Carter, Herbert T.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 66, 423266, 423385, 423631, C01B 2100, C01F 700

Patent

active

042410002

ABSTRACT:
A structural ceramic material comprising single phase polycrystalline cubic aluminum oxynitride preferably with at least 97% of theoretical density which displays transparency and isotropic optical, thermal and electrical properties, an infrared cutoff at about 5.2 microns wavelength, and which shows no chemical or physical property change after heating in air (atmosphere) at 1100.degree. C.

REFERENCES:
patent: 3108887 (1963-10-01), Lenie et al.
patent: 3572992 (1971-03-01), Komeya et al.
patent: 4147759 (1979-04-01), Demit
Lejus, "Rev. Hautes Temper. et Refract.", vol. 1, 1965, pp. 53-95 (pp. 85 of interest).
Sakai, "Chemical Absts.", vol. 88, 1978, p. 307.
Goursat et al., "Chemical Absts.", vol. 86, 1977, p. 203.
Long et al., "Journal of American Ceramic Soc.", vol. 44, pp. 255-258, 1961.
Irene et al., "Journal of Electronic Materials", vol. 4, 1975, pp. 409-427.

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