Premium
Microstructure of 96% Alumina Ceramics: I, Characterization of the As‐Sintered Materials
Author(s) -
PowellDoǧan Cynthia A.,
Heuer Arthur H.
Publication year - 1990
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.1151-2916.1990.tb04274.x
Subject(s) - microstructure , characterization (materials science) , materials science , grain boundary , intergranular corrosion , ceramic , microchemistry , phase (matter) , mineralogy , composite material , metallurgy , chemistry , nanotechnology , organic chemistry , chromatography
Characterization of the microstructure and microchemistry of a group of commercial 96% Al 2 O 3 ceramics, using analytical and conventional electron microscopy techniques, was conducted. A continuous glassy grain‐boundary phase was found in all samples, in addition to a number of intragranular and intergranular crystalline second phases; the phases present depended on the original boundary‐glass composition. The faceted nature of many of the Al 2 O 3 ‐glass interfaces was studied and is thought to be an equilibrium structure.