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Microstructure of Sintered Mullite‐Zirconia Composites
Author(s) -
Prochazaka Svante,
Wallace Jay S.,
Claussen Nils
Publication year - 1983
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.1151-2916.1983.tb10104.x
Subject(s) - mullite , materials science , microstructure , cubic zirconia , composite material , ceramic , transmission electron microscopy , phase (matter) , grain growth , sintering , metallurgy , chemistry , nanotechnology , organic chemistry
Fused mullite, pure and with 10 to 25 vol% ZrO 2 added, was milled in an attritor and sintered in air at temperatures near 1600°C to a dense fine‐grained ceramic. The ZrO 2 promoted densification and retarded grain growth of the mullite phase. Transmission electron microscopy showed that compositions containing ZrO 2 were substantially free of glass, whereas pure mullite bodies contained a glassy phase. The ZrO 2 formed inter granular, isolated particles .