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Tape Casting and Properties of Mullite and Zirconia–Mullite Ceramics
Author(s) -
Boch Phillippe,
Chartier Thierry
Publication year - 1991
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1991.tb06783.x
Subject(s) - mullite , materials science , sintering , tape casting , ceramic , cubic zirconia , tetragonal crystal system , casting , composite material , metallurgy , quartz , phase (matter) , mineralogy , chemistry , organic chemistry
Mullite and ZrO 2 ‐mullite ceramics have been prepared by tape casting mixtures of Al 2 O 3 , quartz, and ZrO 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°C. ZrO 2 additions limit grain growth, but the ZrO 2 content must not be too high when a high tetragonal:monoclinic ratio is required.