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Kinetics of the SRO-LRO Transformation in NI4MO

Published online by Cambridge University Press:  21 February 2011

E. E. Stansbury*
Affiliation:
Dept. of Chem., Met. and Poly. Engr. University of Tennessee Knoxville, TN 37996
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Abstract

The isothermal time-temperature dependence of the transformation from SRO to LRO as measured by resistivity changes is given. Problems of defining an initial state from which the transformation occurs are reviewed with emphasis on the microdomain structure from which the LRO structure develops. Questions of homogeneous transformation relative to heterogeneous transformation by clear nucleation and growth are addressed in terms of experimental evidence and theoretical predictions. Strong evidence for a nucleation and growth mechanism, at least above 750° C, is presented.

Type
Research Article
Copyright
Copyright © Materials Research Society 1985

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