STUDIES OF CERAMIC PROCESSING
Abstract
The objective of the program is to improve the structure of ceramics by processing. The over-all temperature range of interest is 1800 to above 3000 deg F. In the high portion of the range, 3000 deg F and above, compositions of pure alumina plus 0 to 2% additions of MgO were studied between 2822 and 3180 deg F, at 1 to 7 hour soaking periods and in atmospheres of hydrogen, helium and vacuum. The analysis of results is reported. Petrographic, x-ray, d.c. conductivity, electron transmission and electron probe methods were used and the results are reported. The low range, 1800 to 2600 deg F, was studied using the devitrification approach to the prereacted materials technique. The area of crystallization of cordierite in the MgO.Al2O3.SiO2 system was evaluated as a single glass system. A two-glass system, in which one glass devitrifies cordierite and the second supplies the bonding system, was studied. Bonding glass compositions were evaluated in the RO.Al2O3.SiO2 system, in which the RO members are alkaline earth oxides. Composites were made at 10, 20 and 30% bonding glass. Processing, structures and properties are reported.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 15, 1965
- Accession Number
- AD0651061
Entities
People
- C. M. Ringel
- E. J. Smoke
- P. L. Fleischner
Organizations
- Rutgers University–New Brunswick