Accession Number : AD0275787

Title :   DEVELOPMENT OF REFRACTORY CERAMICS THAT CAN BE PROCESSED AT TEMPERATURES CONSIDERABLY LOWER THAN THEIR MAXIMUN USE TEMPERATURE

Corporate Author : RUTGERS - THE STATE UNIV NEW BRUNSWICK N J NEW JERSEY CERAMIC RESEARCH STATION

Personal Author(s) : SMOKE,EDWARD J. ; KOENIG,JOHN H.

Report Date : 01 DEC 1962

Pagination or Media Count : 1

Abstract : Attempts were made to develop refractory ceramics for radomes that can be processed at temperatures considerably lower than their maximum use temperature. High alumina bodies containing 94 and 96% Al2O3, were developed with excellent engineering properties when matured in the range 2600 to 2800 F. The low maturing temperature and the excellent physical properties of these bodies were attributed to a presintering process. Studies were initiated on the mechanisms that enable a presintered body to mature at lower temperatures with superior physical properties. The incorporation of a devitrifiable glass in an alumina matrix and the total fritting of a refractory composition were also investigated. (Author)

Descriptors :   *CERAMIC MATERIALS, *RADOMES, *REFRACTORY MATERIALS, ALUMINUM COMPOUNDS, CRYSTAL STRUCTURE, CRYSTALLIZATION, DENSITY, ELECTRICAL PROPERTIES, GLASS, HIGH TEMPERATURE, MAGNESIUM COMPOUNDS, MATERIALS, MECHANICAL PROPERTIES, MELTING, OXIDES, PHYSICAL PROPERTIES, POROSITY, PREPARATION, PROCESSING, SILICON COMPOUNDS, SINTERING, SOLID STATE PHYSICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE