Accession Number : ADP007742

Title :   Microwave Sintering of Alumina Ceramics in a Single Mode Applicator,

Corporate Author : MICHIGAN TECHNOLOGICAL UNIV HOUGHTON

Personal Author(s) : Patil, D. S. ; Mutsuddy, B. C.

Report Date : 27 APR 1992

Pagination or Media Count : 9

Abstract : High purity submicron powders were sintered in a single mode cylindrical cavity applicator CMPR-250 operating at 2.45 GHz in the TMO12 mode. The alumina powders could be sintered from an initial green density of 60 % to a final density close to theoretical. Rapid heating rates at very low power level were achieved. Uniform microstructure and relatively small grain size in the microwave sintered alumina were evident. The initial results of this study demonstrate the potential applicability of a single mode applicator for sintering alumina ceramics.

Descriptors :   *MICROWAVES, *SINTERING, *CERAMIC MATERIALS, APPLICATORS, CAVITIES, DENSITY, GRAIN SIZE, HEATING, LOW POWER, MICROSTRUCTURE, POWDERS, POWER LEVELS, PURITY, ALUMINUM OXIDES, ELECTRIC FIELDS, DIELECTRICS, SYMPOSIA.

Subject Categories : Ceramics, Refractories and Glass
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE