TEM analysis of Gd5(SixGe1-x)4, where x=1/2

被引：9
|
作者：
Meyers, JS
Chumbley, S [1 ]
Laabs, F
Pecharsky, AO
机构：
[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[2] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA
来源：
ACTA MATERIALIA | 2003年 / 51卷 / 01期
关键词：
transmission electron microscopy; rare earth; phase transition; ferroelastic; Gd5Si2Ge2;
D O I：
10.1016/S1359-6454(02)00227-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The material Gd-5(SixGe1-x)(4), with x=1/2 was investigated using transmission electron microscopy. The material possesses a complex crystallographic structure and undergoes a unique, reversible, transformation at low temperatures and an irreversible high temperature transformation. The high, room and low temperature microstructures of arc-melted and heat treated samples are reported. Direct observation of the transformation with a discussion on the mechanism of the reversible, low temperature, phase transformation is detailed. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：61 / 70
页数：10
相关论文
共 50 条
  • [31] A phenomenological description of the first-order transition in the Gd5(SixGe1-x)4 (0.24 < x < 0.5) alloys
    Teng, BH
    Tu, MJ
    Chen, YF
    Tang, JK
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (25) : 6501 - 6507
  • [32] The effect of varying the crystal structure on the magnetism, electronic structure and thermodynamics in the Gd5(SixGe1-x)4 system near x=0.5
    Pecharsky, VK
    Samolyuk, GD
    Antropov, VP
    Pecharsky, AO
    Gschneidner, KA
    JOURNAL OF SOLID STATE CHEMISTRY, 2003, 171 (1-2) : 57 - 68
  • [33] 杂质对Gd5(SixGe1-x)4（x≈0.5）合金结构与磁熵变的影响
    付浩
    涂铭旌
    陈云贵
    张铁邦
    张良成
    稀有金属材料与工程, 2005, (09) : 1481 - 1484
  • [34] Effect of a magnetic field on the magnetostructural phase transition in Gd5(SixGe1-x)4 -: art. no. 104416
    Casanova, F
    Labarta, A
    Batlle, X
    Marcos, J
    Mañosa, L
    Planes, A
    de Brion, S
    PHYSICAL REVIEW B, 2004, 69 (10)
  • [35] Monte Carlo calculations of the magnetocaloric effect in Gd5(SixGe1-x)4 compounds -: art. no. 134426
    Nóbrega, EP
    de Oliveira, NA
    von Ranke, PJ
    Troper, A
    PHYSICAL REVIEW B, 2005, 72 (13)
  • [36] Estimation of second order phase transition temperature of the orthorhombic phase of Gd5(SixGe1-x)4 using Arrott plots
    Hadimani, R. L.
    Melikhov, Y.
    Snyder, J. E.
    Jiles, D. C.
    JOURNAL OF APPLIED PHYSICS, 2008, 103 (03)
  • [37] Production of the giant magnetocaloric effect Gd5(SixGe1-x)4 magnetic refrigerant materials from commercial gadolinium metal
    Gschneidner, KA
    Pecharsky, AO
    Pecharsky, VK
    Lograsso, TA
    Schlagel, DL
    RARE EARTHS AND ACTINIDES: SCIENCE, TECHNOLOGY AND APPLICATIONS IV, 2000, : 63 - 72
  • [38] Coexistence of short-range ferromagnetic and antiferromagnetic correlations in Ge-rich Gd5(SixGe1-x)4 alloys
    Casanova, F
    de Brion, S
    Labarta, A
    Batlle, X
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (18) : 3343 - 3347
  • [39] Characterization of R5(SixGe1-x)4 alloys, where R is Gd, Tb, Dy and Er
    Ugurlu, O
    Chumbley, LS
    Schlagel, DL
    Lograsso, TA
    Pecharsky, AO
    LIGHT METALS 2005, 2005, : 1181 - 1185
  • [40] Pressure-induced removal of magnetostructural inhomogeneity in Ge-rich Gd5(SixGe1-x)4 giant magnetocaloric alloys
    Tseng, Y. C.
    Haskel, D.
    Souza-Neto, N. M.
    Mudryk, Ya.
    Pecharsky, V. K.
    Gschneidner, K. A., Jr.
    PHYSICAL REVIEW B, 2008, 78 (21)
12345