Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1502693 | Scripta Materialia | 2009 | 4 Pages |
Abstract
In situ high-temperature powder X-ray diffraction experiments have been performed on Pb10.5Sb31.6Te57.9 using a synchrotron X-ray source to observe the eutectoid reaction from Pb2Sb6Te11 to PbTe and Sb2Te3. Molar fractions of the constituent phases and fraction transformed were obtained as functions of time. The experimental fraction transformed vs. time curve were well fitted by the Kolmogorov–Johnson–Mehl–Avrami equation with an Avrami index n = 1.4. The small n value suggests that the growth of the new phases PbTe and Sb2Te3 is one-dimensional.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Teruyuki Ikeda, Eric S. Toberer, Vilupanur A. Ravi, G. Jeffrey Snyder, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata,