The isothermal section of the Gd-Fe-Ge ternary system at 773 K

被引：4
作者：
Zhuang, Y. H. [1 ]
Li, K. F. [1 ]
Ma, C. H. [1 ]
Chen, X. [1 ]
机构：
[1] Guangxi Univ, Inst Mat Sci, Minist Educ, Key Lab Nonferrous Met Mat & New Proc Technol, Nanning 530004, Guangxi, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 467卷 / 1-2期
关键词：
Metals and alloys; Quenching; Crystal structure; X-ray diffraction; CRYSTAL-STRUCTURE; COMPOUNDS R; HO; ALLOYS; LU; ND;
D O I：
10.1016/j.jallcom.2007.12.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The isothermal section of the phase diagram of the Gd-Fe-Ge ternary system at 773 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA) and optical microscopy. The existences of 14 binary compounds, GdFe(2), GdFe(3), Gd(6)Fe(23), Gd(2)Fe(17), Fe(3)Ge, Fc(5)Ge(3), Fe(6)Ge(5), FeGe, FeGe(2), Gd(5)Ge(3),Gd(5)Ge(4), GdGe,Gd(2)Ge(3), Gd(3)Ge(5), and four ternary compounds GdFe(2)Ge(2), GdFe(6)Ge(6), Gd(2)FeGe(4), Gd(117)Fe(52)Ge(112), were confirmed. This section consists of 21 single-phase regions, 43 two-phase regions, and 23 three-phase regions. (C) 2007 Published by Elsevier B.V.
引用
收藏
页码：251 / 256
页数：6
相关论文
共 26 条
[11]   MASS-SPECTROMETRIC STUDY OF THE PARTIAL PHASE-DIAGRAM OF THE FE-GE SYSTEM ABOVE 1050-DEGREES-C [J].
NUNOUE, SY ;
KATO, E .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (05) :975-976
[12]  
OBUSHENKO IM, 1980, SOV POWDER METALL, V19, P104
[13]  
OKAMOTO H, 1993, PHASE DIAGRAMS BINAR, P341
[14]   Giant magnetocaloric effect in Gd-5(Si2Ge2) [J].
Pecharsky, VK ;
Gschneidner, KA .
PHYSICAL REVIEW LETTERS, 1997, 78 (23) :4494-4497
[15]   Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from similar to 20 to similar to 290 K [J].
Pecharsky, VK ;
Gschneidner, KA .
APPLIED PHYSICS LETTERS, 1997, 70 (24) :3299-3301
[16]   MAGNETIC-PROPERTIES OF GADOLINIUM IN THE REGION OF PARAPROCESS [J].
PONOMAREV, BK .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1986, 61 (1-2) :129-138
[17]   Ce-Fe-Ge, Nd-Fe-Ge and Ho-Fe-Ge phase diagrams: Systematics of rare earth-iron-germanium compounds [J].
Salamakha, P ;
Konyk, M ;
Sologub, O ;
Bodak, O .
JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 234 (01) :151-156
[18]   Thermodynamic features of magnetization and magnetocaloric effect near the magnetic ordering temperature of Gd [J].
Spichkin, Y. I. ;
Derkach, A. V. ;
Tishin, A. M. ;
Kuz'min, M. D. ;
Chernyshov, A. S. ;
Gschneidner, K. A., Jr. ;
Pecharsky, V. K. .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 316 (02) :E555-E557
[19]   RGe2-x compounds (R = Y, Gd-Ho) with new ordered ThSi2-defect structures [J].
Venturini, G ;
Ijjaali, I ;
Malaman, B .
JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 285 (1-2) :194-203
[20]   Vacancy ordering in AlB2-type RGe2-x compounds (R=Y, Nd, SM, Gd-Lu) [J].
Venturini, G ;
Ijjaali, I ;
Malaman, B .
JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 284 (1-2) :262-269
123