Gault, Baptiste and Marquis, Emmanuelle A. and Saxey, David W. and Hughes, Gareth M. and Mangelinck, Dominique and Toberer, Eric S. and Snyder, G. Jeff (2010) High-resolution nanostructural investigation of Zn_4Sb_3 alloys. Scripta Materialia, 63 (7). pp. 784-787. ISSN 1359-6462 http://resolver.caltech.edu/CaltechAUTHORS:20100908-113023531
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Zinc antimonides exhibit high thermoelectric figures of merit and bear great potential for power generation. To advance the understanding of the structure–property relationship in these alloys, the microstructure of a nanocrystalline Zn_4Sb_3 alloy, containing 57.29 at.% Zn, was investigated by scanning electron microscopy and atom probe tomography. Chemical inhomogeneities were observed at grain boundaries. Within the grains the distribution of Zn shows large fluctuations inducing a complex microstructure made of Zn-rich and Sb-rich regions at a nanometer scale.
|Additional Information:||© 2010 Acta Materialia Inc. Published by Elsevier Ltd. Received 17 May 2010; revised 6 June 2010; accepted 6 June 2010. Available online 10 June 2010. The Oxford FIM Group acknowledges the EPSRC for funding under Grant No. EP/077664/1, with which the UK National Atom Probe Facility was established. Thanks to Drs. M. Descoin and K. Hoummada and Prof. M.C. Record for fruitful discussions, help and advice with specimen preparation. B.G. acknowledges the financial support of the European Commission via an FP7 Marie Curie IEF Action No. 237059. E.A.M. acknowledges financial support from the Royal Society via a Dorothy Hodgkin fellowship.|
|Subject Keywords:||Thermoelectric material; Zinc antimonide; Atom probe tomography; Scanning electron microscopy|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||09 Sep 2010 22:19|
|Last Modified:||26 Dec 2012 12:24|
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