Elastic modulus, thermal expansion, and specific heat at a phase transition

摘要: The interrelation of the elastic modulus, thermal-expansion coefficient, and specific heat a transformed phase relative to untransformed is calculated assuming particular but useful form thermodynamic potential. For second-order transitions where this potential applies, measurements expansion, can yield general (longitudinal as well shear) first- stress (or strain) dependences transition temperature order parameter at absolute zero. An exemplary application one type given. (AIP)