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Effect of Water Bath Temperature on the Thermal Shock of Al 2 O 3
Author(s) -
Becher Paul F.
Publication year - 1981
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.1151-2916.1981.tb09544.x
Subject(s) - thermal shock , thermodynamics , boiling , thermal , materials science , thermal expansion , chemistry , analytical chemistry (journal) , chromatography , physics
The thermal stress resistance of aluminas is strongly influenced by the surface heat transfer coefficient (h). In liquid quenches, h, which is a function of boiling phenomena, varies with bath and sample temperature. Thus, while a 22°C water quench yields ΔT c values essentially independent of the alumina properties or correspondingly, sample thickness, t, raising the bath to 100°C leads to a strong size dependence of ΔT c (i.e. ΔT c >> ∼250°C for t<1.8 mm).