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Tape casting and properties of mullite and zirconia-mullite ceramics

Journal Article · · Journal of the American Ceramic Society; (United States)
 [1];  [2]
  1. Ecole Superieure de Physique et Chimie Industrielles, 75 - Paris (France)
  2. Ecole Nationale Superieure de Ceramique Industrielle, 87065 Limoges (FR)
This paper reports on Mullite and ZrO{sub 2}-mullite ceramics that have been prepared by tape casting mixtures of Al{sub 2}O{sub 3}, quartz, and ZrO{sub 2} powders and subsequent reaction sintering. Tape casting leads to homogeneous, high-density green materials with good sinterability. The design of a thermal cycle which favors densification with respect to mullitization allows the preparation of nearly dense, nearly fully reacted materials at sintering temperatures below 1600{degrees} C. ZrO{sub 2} additions limit grain growth, but the ZrO{sub 2} content must not be too high when a high tetragonal:monoclinic ratio is required.
OSTI ID:
5720896
Journal Information:
Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 74:10; ISSN JACTA; ISSN 0002-7820
Country of Publication:
United States
Language:
English