A thermodynamic description of the Ce-La-Mg system

被引：8

作者：

Guo, Cuiping ^{[1
]}

Du, Zhenmin ^{[1
]}

Li, Changrong ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2010年 / 101卷 / 11期

关键词：

Thermodynamic modeling CALPHAD technique; Ce-La-Mg system; Order-disorder transition; Y SYSTEM; ALLOYS;

D O I：

10.3139/146.110380

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The thermodynamic optimization of the Ce-La and Ce-La-Mg systems has been earned out using the CALPHAD technique The solution phases (liquid, bcc, fcc, hcp and dhcp) were described with a substitutional solution model The isostructural compounds MgCe in the Ce-Mg system and MgLa in the La-Mg system with B2 structure form a continuous range of solid solution in the Ce-La-Mg system The order disorder transition between the solutions with A2 structure and compounds with B2 structure in the system has been taken into account and thermodynamically modeled The other isostructural compounds Mg12Ce and Mg12La, Mg17Ce2 and Mg17La2 Mg41Ce5 and Mg41La5, Mg3Ce and Mg3La, and Mg2Ce and Mg2La were described as such formula Mg-12(Ce, La) Mg-17(Ce-La)(2) Mg-41(Ce La)(5), Mg-3(Ce, La, Mg), Mg-2(Ce La), respectively A set of self-consistent thermodynamic description of the Ce-La-Mg system was obtained

引用

页码：1424 / 1431

页数：8

共 22 条

[1] Thermodynamic assessment of the Al-Ni system [J].

Ansara, I ;

Dupin, N ;

Lukas, HL ;

Sundman, B .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 247 (1-2) :20-30

[2]

BOCHVAR N, 2000, TERNARY ALLOYS COMPR, V17, P135

[3]

CACCIAMANI G, 1998, COST507 THERMOCHEMIC, P137

[4] ANOMALOUS SPECIFIC-HEAT IN LA DOUBLE-BOND CE ALLOYS [J].

CULBERT, HV ;

EDELSTEIN, AS .

SOLID STATE COMMUNICATIONS, 1974, 15 (11) :1633-1638

[5]

Dinsdale A., 2006, SGTE pure elements (Unary) database

[6] Thermodynamic modeling of the La-Mg-Y system and Mg-based alloys database [J].

Du Zhenmin ;

Guo Cuiping ;

Li Changrong ;

Zhang Weijing .

RARE METALS, 2006, 25 (05) :492-500

[7] THE ISOTHERMAL SECTION AT 500-DEGREES-C OF THE Y-LA-MG TERNARY-SYSTEM [J].

GIOVANNINI, M ;

SACCONE, A ;

MARAZZA, R ;

FERRO, R .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (01) :5-10

[8]

Gschneidner K.A. J., 1982, Bulletin of Alloy Phase Diagrams, V2, P445, DOI DOI 10.1007/BF02876156

[9] Thermodynamic assessment of the La-Mg system [J].

Guo, CP ;

Du, ZM .

JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 385 (1-2) :109-113

[10] Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems [J].

Guo, Cuiping ;

Du, Zhenmin ;

Li, Changrong .

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2008, 99 (06) :650-668

← 1 2 3 →