Premium
Effect of Crystallites on Thermal Shock Resistance of Cordierite Glass‐Ceramics
Author(s) -
Fairbanks Carolyn J.,
Lee Hong Lim,
Haselman D. P. H.
Publication year - 1984
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.1151-2916.1984.tb19494.x
Subject(s) - thermal shock , materials science , cordierite , composite material , crystallization , ceramic , crystallite , fracture toughness , aluminate , thermal conductivity , mineralogy , metallurgy , chemical engineering , chemistry , cement , engineering
Thermal shock behavior was compared for a cordierite glass and glass‐ceramics subjected to a water quench. Crystallization significantly increases the critical quenching temperature difference (ΔT c ); this effect was attributed to enhanced strength and thermal conductivity offset by a corresponding increase in Young's modulus. The strength retained following thermal shock also increased significantly on crystallization for ΔT>ΔTC, probably as the result of stepwise increases in fracture toughness with increasing crack size of the glass‐ceramic.