A weak compatibility condition for precipitation with application to the microstructure of PbTe-Sb2Te3 thermoelectrics

被引：9

作者：

Chen, Xian ^{[1
]}

Cao, Shanshan ^{[2
]}

Ikeda, Teruyuki ^{[3
]}

Srivastava, Vijay ^{[1
]}

Snyder, G. Jeffrey ^{[4
]}

Schryvers, Dominique ^{[2
]}

James, Richard D. ^{[1
]}

机构：

[1] Univ Minnesota, Dept Aerosp Engn & Mech, Minneapolis, MN 55455 USA

[2] Univ Antwerp, Electron Microscopy Mat Sci EMAT, B-2020 Antwerp, Belgium

[3] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

[4] CALTECH, Pasadena, CA 91125 USA

来源：

ACTA MATERIALIA | 2011年 / 59卷 / 15期

基金：

日本科学技术振兴机构; 美国国家科学基金会;

关键词：

Compatibility; Precipitation; Widmanstatten microstructure; Thermoelectric materials; SHAPE-MEMORY ALLOYS; TRANSMISSION ELECTRON-MICROSCOPY; HYSTERESIS; BEHAVIOR; SB2TE3; PBTE; NI;

D O I：

10.1016/j.actamat.2011.06.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a weak condition of compatibility between phases applicable to cases exhibiting full or partial coherence and Widmanstatten microstructure. The condition is applied to the study of Sb2Te3 precipitates in a PbTe matrix in a thermoelectric alloy. The weak condition of compatibility predicts elongated precipitates lying on a cone determined by a transformation stretch tensor. Comparison of this cone with the long directions of precipitates determined by a slice-and-view method of scanning electron microscopy combined with focused ion beam sectioning shows good agreement between theory and experiment. A further study of the morphology of precipitates by the Eshelby method suggests that interfacial energy also plays a role and gives an approximate value of interfacial energy per unit area of 250 dyn cm(-1). (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6124 / 6132

页数：9

共 31 条

[1] Ferromagnetic resonance in Ni-Mn based ferromagnetic Heusler alloys
Aksoy, S.
Posth, O.
Acet, M.
Mackenstock, R.
Lindner, J.
Farle, M.
Wassermann, E. F.
[J]. INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009), 2010, 200
[2] FINE PHASE MIXTURES AS MINIMIZERS OF ENERGY
BALL, JM
JAMES, RD
[J]. ARCHIVE FOR RATIONAL MECHANICS AND ANALYSIS, 1987, 100 (01) : 13 - 52
[3] Cao S, 2009, J MICROSC-OXFORD, V23, P6168
[4] Focused ion beam/scanning electron microscopy tomography and conventional transmission electron microscopy assessment of Ni4Ti3 morphology in compression-aged Ni-rich Ni-Ti single crystals
Cao, Shanshan
Somsen, Christoph
Croitoru, Mihail
Schryvers, Dominique
Eggeler, Gunther
[J]. SCRIPTA MATERIALIA, 2010, 62 (06) : 399 - 402
[5] Combinatorial search of thermoelastic shape-memory alloys with extremely small hysteresis width
Cui, J
Chu, YS
Famodu, OO
Furuya, Y
Hattrick-Simpers, J
James, RD
Ludwig, A
Thienhaus, S
Wuttig, M
Zhang, ZY
Takeuchi, I
[J]. NATURE MATERIALS, 2006, 5 (04) : 286 - 290
[6] Transmission electron microscopy study of phase compatibility in low hysteresis shape memory alloys
Delville, Remi
Kasinathan, Sakthivel
Zhang, Zhiyong
Van Humbeeck, Jan
James, Richard D.
Schryvers, Dominique
[J]. PHILOSOPHICAL MAGAZINE, 2010, 90 (1-4) : 177 - 195
[7] THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS
ESHELBY, JD
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226): : 376 - 396
[8] Combinatorial discovery of a lead-free morphotropic phase boundary in a thin-film piezoelectric perovskite
Fujino, S.
Murakami, M.
Anbusathaiah, V.
Lim, S. -H.
Nagarajan, V.
Fennie, C. J.
Wuttig, M.
Salamanca-Riba, L.
Takeuchi, I.
[J]. APPLIED PHYSICS LETTERS, 2008, 92 (20)
[9] Microstructure in a cubic to orthorhombic transition
Hane, KF
Shield, TW
[J]. JOURNAL OF ELASTICITY, 2000, 59 (1-3) : 267 - 318
[10] Heinz N, COMMUNICATION

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