Document Type
Article
Publication Date
9-2007
Journal or Book Title
Gold Bulletin
Volume
40
Issue
32
First Page
199
Last Page
205
DOI
10.1007/BF03215581
Abstract
Au-7 at.% Pt Deformation-processed Metal Metal Composite (DMMC) was isothermally annealed at various times and temperatures. Avrami and Arrhenius relations were used to evaluate the kinetics of the transformation from the initial metastable nanofilamentary microstructure to the equilibrium homogeneous solid solution condition. Results indicated that the activation energy for this transformation was 167 ± 6 kJ/mol. This activation energy is lower than activation energies reported in the literature for planar interface, single crystal Au-Pt diffusion couple experiments. The effects of chemical potential, surface curvature, and strain effects on the empirical activation energies determined in the DMMC of this study are discussed. These factors are thought to cause the DMMC systems to reach equilibrium faster.
Rights
This article is published under the Creative Commons Attribution 2,0 Generic license (CC BY 2.0).
Copyright Owner
The authors
Copyright Date
2007
Language
en
File Format
application/pdf
Recommended Citation
Wongpreedee, Kageeporn and Russell, Alan M., "The stability of Pt nanofilaments in a Au-matrix composite" (2007). Materials Science and Engineering Publications. 40.
https://lib.dr.iastate.edu/mse_pubs/40
Comments
This article is from Gold Bulletin 40 (2007): 199–205, doi:10.1007/BF03215581.