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Calorimetric observations of amorphous and crystalline Ni-Zr alloy formation by solid-state reaction

Cotts, E. J. and Wong, G. C. and Johnson, W. L. (1988) Calorimetric observations of amorphous and crystalline Ni-Zr alloy formation by solid-state reaction. Physical Review B, 37 (15). pp. 9049-9052. ISSN 0163-1829. http://resolver.caltech.edu/CaltechAUTHORS:COTprb88

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Abstract

Differential scanning calorimetry and x-ray diffraction are utilized in a study of solid-state vitrification of multilayered composites of Ni and Zr. In order to understand better and optimize the amorphizing reaction, we have examined the kinetics of competing reactions: the formation and growth of crystalline intermetallic compounds. The value of the activation energy, Ec, of the initial crystallization of the growing amorphous phase is determined to be Ec=2.0±0.1 eV, establishing an upper limit on the thermal stability of the amorphous-diffusion couple.


Item Type:Article
Additional Information:©1988 The American Physical Society. Received 7 August 1987. This work was supported by the U.S. Department of Energy under Contract No. De-AT03-81ER10870. We thank M. Atzmon and K. Samwer for helpful discussions.
Record Number:CaltechAUTHORS:COTprb88
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:COTprb88
Alternative URL:http://dx.doi.org/10.1103/PhysRevB.37.9049
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3917
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Jul 2006
Last Modified:26 Dec 2012 08:56

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