Accession Number : ADP007717

Title :   Microwave Processing of Ceramics at Northwestern University,

Corporate Author : NORTHWESTERN UNIV EVANSTON IL DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s) : Johnson, D. Lynn

Report Date : 27 APR 1992

Pagination or Media Count : 12

Abstract : Ceramic rods have been sintered in cold wall single mode microwave cavities under a variety of conditions, including microwave heating and plasma heating. High sintering rates, high density and fine grain sizes were achieved for Beta-alumina and A12O3-TiC composites under favorable conditions. Thermal run-away often was observed in alumina during microwave heating if the heating rate was more than a few degrees per second. On the other hand, microwave plasma sintering of alumina was accomplished at very high heating rates (100 K/s).

Descriptors :   *MICROWAVES, *CERAMIC MATERIALS, *SINTERING, CAVITIES, DENSITY, FINES, HEATING, HIGH DENSITY, RATES, RODS, SINTERING, ALUMINUM OXIDES, TITANIUM ALLOYS, PLASMAS(PHYSICS), SYMPOSIA.

Subject Categories : Ceramics, Refractories and Glass
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE