DEVELOPMENT OF REFRACTORY CERAMICS THAT CAN BE PROCESSED AT TEMPERATURES CONSIDERABLY LOWER THAN THEIR MAXIMUM USE TEMPERATURE. Final Report, December 1, 1960-April 1, 1962
A presintering process was developed that showed considerable progress. The fabrication technique utilized higher alumina content compositions to reduce the maturing temperatures by 200 deg F. This was accomplished by a study of the parameters of the presintering operation and the form of the raw material additions. A more fundamental study into the densification mechanisms occurring in this type fabrication is underway. A second approach to a lower maturing temperature is the devitrification process. One aspect of the process is the incorporation of a devitrifiable glass in an alumina matrix. Another is the formation of a glass of refractory composition; this aspect appears promising. The third approach to the overall problem is the application of controllable sintering mechanisms to pure oxide ceramics. This involves a study of the effect of time, temperature, atmospheres, and additives upon the sintering mechanisms of the pure oxide, alumina. To date the apparatus has been constructed and specimens have been prepared for firing and subsequent evaluation. (auth)
- Research Organization:
- Rutgers Univ., New Brunswick, N.J. School of Ceramics
- NSA Number:
- NSA-17-012626
- OSTI ID:
- 4758725
- Report Number(s):
- AD-275787; N62-12088
- Country of Publication:
- United States
- Language:
- English
Similar Records
STUDIES OF THE STABILITY OF HIGH TEMPERATURE RESISTANT CERAMIC COATING GLASSES. Report No. 82
Process for fabrication of enhanced β″-alumina solid electrolytes for energy storage devices and energy applications