Identification of thin plates seen in R5(SixGe1-x)4 alloys, where R is Gd, Tb, Dy, and Er

被引:15
作者
Ugurlu, O [1 ]
Chumbley, LS
Schlagel, DL
Lograsso, TA
Tsokol, AO
机构
[1] Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA
[2] Iowa State Univ Sci & Technol, Dept Mat Sci & Engn, Ames, IA 50011 USA
关键词
scanning electron microscopy (SEM); transmission electron microscopy (TEM); rare earth; microstructure; Gd-5(Si-x; Ge1-x)(4);
D O I
10.1016/j.scriptamat.2005.03.052
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
R-5(SixGe1-x)(4) alloys, where R is Tb, Dy, and Er, have been examined. Their microstructures consisted of large grains with thin plates of a second phase. Energy dispersive spectrometry of the plates revealed a rare earth rich composition. It is proposed that the plates are R-5(SixGe1-x)(3) compounds, similar to results seen in Gd-5(SixGe1-x)(4). Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码:373 / 377
页数:5
相关论文
共 13 条
[1]  
[Anonymous], 1990, ADV MATER
[2]   The nonpareil R5(SixGe1-x)4 phases [J].
Gschneidner, KA ;
Pecharsky, VK ;
Pecharsky, AO ;
Ivtchenko, VV ;
Levin, EM .
JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 303 :214-222
[3]   NEW FERROMAGNETIC 5 - 4 COMPOUNDS IN RARE EARTH SILICON AND GERMANIUM SYSTEMS [J].
HOLTZBERG, F ;
GAMBINO, RJ ;
MCGUIRE, TR .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1967, 28 (11) :2283-+
[4]  
IVTCHENKO VV, 1999, ADV CRYOGENIC ENG A, V46, P405
[5]   Determination of phases in as prepared Gd5(SixGe1-x)4, where x ≅ 1/2 [J].
Meyers, JS ;
Chumbley, LS ;
Laabs, F ;
Pecharsky, AO .
SCRIPTA MATERIALIA, 2002, 47 (08) :509-514
[6]   Magnetocaloric effect in Tb5(SixGe1-x)4 [J].
Morellon, L ;
Magen, C ;
Algarabel, PA ;
Ibarra, MR ;
Ritter, C .
APPLIED PHYSICS LETTERS, 2001, 79 (09) :1318-1320
[7]  
PECHARSKY AO, IN PRESS PHYS REV B
[8]   Giant magnetocaloric effect in Gd-5(Si2Ge2) [J].
Pecharsky, VK ;
Gschneidner, KA .
PHYSICAL REVIEW LETTERS, 1997, 78 (23) :4494-4497
[9]   Magnetic and structural phase diagram of Tb5(SixGe1-x)4 -: art. no. 094405 [J].
Ritter, C ;
Morellon, L ;
Algarabel, PA ;
Magen, C ;
Ibarra, MR .
PHYSICAL REVIEW B, 2002, 65 (09) :1-10
[10]  
SHAREY A, 1982, J LESS-COMMON MET, V85, P233