Kinetics of Some Displacive Solid - Solid Phase Transformations under Isobaric-Isothermal Conditions

Mohan, Murali (2000) Kinetics of Some Displacive Solid - Solid Phase Transformations under Isobaric-Isothermal Conditions. Metals Materials and Processes, 12 (2 & 3). pp. 143-160.

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Abstract

The research activities in the area of the kinetics of pressure induced solid -> solid phase transformations are discussed in this paper . The experimental techniques for obtaining the kinetics data under isobaric-isothermal conditions using the resistometric method are described. The transformations investigated are the a -> to in Ti, fcc -* bcc in Yb and hcp -> fcc in TI . These transformations exhibit features characteristic of a thermally activated nucleation and growth behaviour. The activation volume, the activation entropy and the activation enthalpy obtained from the analysis of the kinetics data are compared . The implications of the kinetics data on the transformation start pressure and the thermodynamic equilibrium pressure are discussed .

Item Type: Article
Uncontrolled Keywords: phase transformations, kinetics, thermodynamics
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Users 10 not found.
Date Deposited: 30 Jan 2012 05:37
Last Modified: 19 Aug 2015 05:02
URI: http://nal-ir.nal.res.in/id/eprint/10278

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