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Preparation of Mullite‐Zirconia Composites from Glass Powder
Author(s) -
McPHERSON R.
Publication year - 1986
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.1151-2916.1986.tb07431.x
Subject(s) - mullite , materials science , tetragonal crystal system , composite material , microstructure , cubic zirconia , hot pressing , ceramic , crystal structure , crystallography , chemistry
Glass powders with the composition mullite/5 wt% ZrO 2 , prepared by rapid solidification, were used to prepare a poly‐crystalline ceramic by hot‐pressing to 1040°C. The as‐prepared structure consisted of a fine‐grain‐sized (∼0.1 μm) solid solution of ZrO 2 in a tetragonal form of mullite. Heat treatment between 1300° and 1660°C resulted in a range of microstructures consisting of tetragonal ZrO 2 particles dispersed in mullite. Transformable tetragonal ZrO 2 was observed only after heat treatment at 1600°C.