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Residual Stresses in Two‐Phase Systems as Determined by Changes in Transition Temperature
Author(s) -
BOGARDUS E. HAL,
ROY RUSTUM
Publication year - 1963
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.1151-2916.1963.tb14618.x
Subject(s) - halide , materials science , ultimate tensile strength , thermal expansion , phase transition , crystal (programming language) , transition temperature , hydrostatic equilibrium , composite material , thermodynamics , negative thermal expansion , phase (matter) , glass transition , chemistry , condensed matter physics , inorganic chemistry , physics , superconductivity , organic chemistry , quantum mechanics , computer science , programming language , polymer
Differences in thermal expansion between glass and crystal and between halide and oxide produce hydrostatic and nonhydrostatic pressures (negative or positive) in polyphase bodies which result in marked changes in the phase‐transition temperature of one of the phases. In the glass‐plus‐crystal systems, the tensile strength of the matrix is not exceeded and reasonable agreement between calculated and experimental values is obtained. The magnitude of maximum lowering in the transition temperature of a particular system is shown to be in the hundreds of degrees centigrade. In a crystalline halide matrix, high tensile stresses cause fractures in the halide and therefore substantial discrepancies between the experimental and calculated values.