Microstructures and thermoelectric properties of p-type pseudo-binary AgxBi0.5Sb1.5-xTe3 (x=0.05-0.4) alloys prepared by cold pressing

被引：34

作者：

Cui, J. L. ^{[1
]}

Xue, H. F.

Xiu, W. J.

机构：

[1] Ningbo Univ Technol, Sch Mech Engn, Ningbo 315016, Peoples R China

[2] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221008, Peoples R China

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 29-30期

关键词：

thermal conductivities; pseudo-binary AgxBi0.5Sb1.5-xTe3 (x=0.05-0.4) alloys; cold pressing;

D O I：

10.1016/j.matlet.2006.03.080

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The p-type pseudo-binary AgxBi0.5Sb1.5-xTe3 (x=0.05-0.4) alloys were prepared by cold pressing. The thermal conductivities (kappa) were calculated from the values of heat capacities, densities and thermal diffusivities measured, and range approximately from 0.66 to 0.56 (W K-1 m(-1)) for the AgxBi0.5Sb1.5-xTe3 alloy with molar fraction x being 0.4. Combining with the electrical properties obtained in the previous study, the maximum dimensionless figure of merit ZT of 1.1 was obtained at the temperature of 558 K. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3669 / 3672

页数：4

共 14 条

[1]

BANDO H, 1999, P 18 INT C THERM BAL, P359

[2] Transport properties of quaternary Ag-Bi-Sb-Te alloys prepared by pressureless sintering [J].

Cui, JL ;

Xu, XB .

MATERIALS LETTERS, 2005, 59 (26) :3205-3208

[3]

CUI JL, IN PRESS J ALLOYS CO

[4] Thermoelectric properties of Ag8GeTe6 [J].

Fujikane, M ;

Kurosaki, K ;

Muta, H ;

Yamanaka, S .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 396 (1-2) :280-282

[5] Thermoelectric properties of α- and β-Ag2Te [J].

Fujikane, M ;

Kurosaki, K ;

Muta, H ;

Yamanaka, S .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 393 (1-2) :299-301

[6] Cubic AgPbmSbTe2+m:: Bulk thermoelectric materials with high figure of merit [J].

Hsu, KF ;

Loo, S ;

Guo, F ;

Chen, W ;

Dyck, JS ;

Uher, C ;

Hogan, T ;

Polychroniadis, EK ;

Kanatzidis, MG .

SCIENCE, 2004, 303 (5659) :818-821

[7] Electrical properties of Ag1-xPb18SbTe20 (x=0, 0.1. 0.3) [J].

Kosuga, A ;

Kurosaki, K ;

Uno, M ;

Yamanaka, S .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 386 (1-2) :315-318

[8] Behavior of Ag admixtures in Sb2Te3 and Bi2Te3 single crystals [J].

Navratil, J ;

Klichova, I ;

Karamazov, S ;

Sramkova, J ;

Horak, J .

JOURNAL OF SOLID STATE CHEMISTRY, 1998, 140 (01) :29-37

[9]

ONAKA I, 1993, P 12 INT C THERM YOK, P121

[10]

PARK S, 2002, P MAT RES SOC S, V691

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