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Strength and Microstructure in Lithium Disilicate Glass‐Ceramics
Author(s) -
BOROM MARCUS P.,
TURKALO ANNA M.,
DOREMUS ROBERT H.
Publication year - 1975
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.1151-2916.1975.tb19004.x
Subject(s) - microstructure , materials science , ceramic , rod , composite material , lithium (medication) , lithium disilicate , crystal (programming language) , glass ceramic , mineralogy , flexural strength , chemistry , medicine , alternative medicine , pathology , computer science , programming language , endocrinology
The effect of heat treatment on the microstructure of Li 2 O‐Al 2 O 3 ·SiO 2 glass‐ceramics which contain crystals of either Li 2 SiO 3 , Li 2 Si 2 O 5 , or both was investigated quantitatively. Strength determinations for abraded rods were correlated with heat treatment on the basis of both size and distribution of crystals and the type and amount of crystal phases present. The presence of Li 2 Si 2 O 5 crystals enhanced the strength, whereas the presence of Li 2 SiO 3 crystals did not change the strength of the abraded parent glass. The interrelation between strength and microstructure is discussed.