Premium
High‐Temperature Mechanical Properties of Ceramic Materials: IV, Sintered Mullite Bodies
Author(s) -
FENSTERMACHER J. E.,
HUMMEL F. A.
Publication year - 1961
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.1151-2916.1961.tb15379.x
Subject(s) - mullite , corundum , materials science , porosity , ceramic , composite material , modulus , flexural strength , mineralogy , chemistry
An attempt was made to sinter relatively pure 3A1 2 O 3 ‐2SiO 2 and 2A1 2 O 3 ‐SiO 2 compositions to low porosities at 1710° and 1650°C, respectively, using an addition of 1% MgO to each body to facilitate the reaction. The 3A1 2 O 3 ‐2SiO 2 body sintered to a porosity of 7.1% and was practically all mullite. The 2Al 2 O 3 SiO 2 body sintered to a porosity of 10.9% and was composed of mullite and corundum. Strength and elastic modulus measurements were made at several temperatures up to 1200°C, and some observations of the load‐bearing properties were made.