The order parameter model for structural relaxation in glass

作者: Cornelius T. Moynihan , Prabhat K. Gupta

DOI: 10.1016/0022-3093(78)90110-2

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摘要: Abstract The order parameter model assumes that the state of a glass or liquid depends on T, P and number parameters Zi. Structural relaxation is due to kinetically impeded evolution following rapid change in T P. linear function for property Q (V H) response X (T P) form φQX = Σi giQX exp(−tτi). Expressions are derived qeighting coefficients terms dependences V H various parameters. It shown giVT giHP giVTgiHP/giVPgiHT II, where II Prigogine-Defay ratio. corresponding relations among functions φVT φHP φVTφHP/φVPφHT ⩽ II. predictions structural compared with found generally agree existing literature data. A suggestions future investigations test this made.

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