Thermodynamic properties of Si-Al, -Ca, -Mg binary and Si-Ca-Al, -Ti, -Fe ternary alloys

被引：25

作者：

Miki, T ^{[1
]}

Morita, K ^{[1
]}

Sano, N ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Met & Sci Mat, Tokyo 1138656, Japan

来源：

MATERIALS TRANSACTIONS JIM | 1999年 / 40卷 / 10期

关键词：

thermodynamics; activity; interaction parameter; silicon; Knudsen effusion; aluminum; calcium; magnesium; titanium; iron;

D O I：

10.2320/matertrans1989.40.1108

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Metallic impurities such as Al, Ca, Mg, Ti, and Fe in Si deteriorate solar cell efficiency to a large extent. To discuss the possibility and efficiency of impurity elimination process, the evaluation of their thermodynamic properties in molten Si are crucial. In the present work, the self-interaction parameters of Al, Ca, and Mg and interaction parameters between Ca-M (M: Al, Ti, Fe) in molten Si at 1723 K were investigated by applying a chemical equilibration technique for Si based alloys with Pb. The activity coefficients of Al and Ca in molten Si at 1723-1823 K were also determined by the Knudsen effusion method.

引用

页码：1108 / 1116

页数：9

共 23 条

[1] STRUCTURE AND RESISTIVITY OF LIQUID METALS [J].

ASHCROFT, NW ;

LEKNER, J .

PHYSICAL REVIEW, 1966, 145 (01) :83-&

[2]

Dietl J., 1981, US Patents, Patent No. 4304763

[3]

ESIN YO, 1985, 5 ALL UN C THERM MET, P18

[4]

GIZENKO NV, 1983, RUSS METALL+, P29

[5]

IWAHORI S, 1998, P MIN MAT PROC I JAP, P27

[6]

*JANAF, 1985, J PHYS CHEM REF D S1, V14, P690

[7]

*JANAF, 1985, J PHYS CHEM REF D S1, V14, P65

[8] FREE ENERGY OF SILICON CARBIDE FROM ITS SOLUBILITY IN MOLTEN LEAD [J].

KIRKWOOD, DH ;

CHIPMAN, J .

JOURNAL OF PHYSICAL CHEMISTRY, 1961, 65 (06) :1082-&

[9]

KOBAYASHI Y, 1998, THESIS U TOKYO JAPAN, P123

[10]

Loseva AF, 1977, RUSS J PHYS CHEM, V51, P495

← 1 2 3 →