CHARACTERIZATION OF SINTERABLE OXIDE POWDERS. I. BeO
The discovery of readily sinterable BeO powder facilitated the production of dense, high-strength BeO ceramics and created interest in the properties and preparation of sinterable BeO. BeO powders prepared by the thermal decomposition of Be(OH)/sub 2/ were studied in an effort to relate sinterability with other more basic characteristics of the oxide powder. Different BeO powders made from analyzed :hydroxides showed a wide range of sinterability. The teraperatures required for sintering the powder compacts to theoretical density ranged from 2300 deg to above 3200 deg F. Lattice paranneters, thermal decomposition, surface areas, and refractive indices were determined on these powders after calcination in air at 750 deg , 1470 deg , 1830 deg , and 2190 deg F. Although unexpected variations in these properties were observed, no simple relation with sinterability was found. Occluded and surface impurities appeared to have a critical effect on sintering behavior. (auth)
- Research Organization:
- Battelle Memorial Inst., Columbus, Ohio
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-002897
- OSTI ID:
- 4343845
- Journal Information:
- Journal of the American Ceramic Society (U.S.), Journal Name: Journal of the American Ceramic Society (U.S.) Vol. Vol: 40; ISSN JACTA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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