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Use of Spodumene in the Processing of Alumina‐Matrix Ceramics—Influence on Microstructure and Mechanical Properties
Author(s) -
Latella Bruno A.,
Burton Graeme R.,
O'Connor Brian H.
Publication year - 1995
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.1151-2916.1995.tb08906.x
Subject(s) - spodumene , materials science , microstructure , ceramic , indentation , vickers hardness test , phase (matter) , composite material , mineralogy , chemistry , organic chemistry
A study has been conducted on the microstructural character, phase assemblage, and selected physical properties of liquid‐phase‐sintered (LPS) aluminas processed from formulations containing β‐spodumene, Li 2 O·Al 2 O 3 ·4SiO 2 . Assessments were made using density data, SEM imaging, XRD analysis, Vickers indentation testing, and Young's modulus measurements. The results indicate that using β‐spodumene to develop LPS alumina ceramics provides materials containing a mix of crystalline β‐spodumene and glassy material which are comparable in mechanical performance to currently available commercial debased alumina ceramics.