Investigation of the Pr2Se3-Cu2Se-PbSe and Pr2Se3-Ag2Se-PbSe systems

被引：0

作者：

Marchuk, O. V.

Gulay, L. D.

Shemet, V. Ya.

Olekseyuk, I. D.

机构：

[1] Volyn State Univ, Dept Gen & Inorgan Chem, UA-43009 Lutsk, Ukraine

[2] Volyn State Univ, Dept Phys & Colloidal Chem, UA-43009 Lutsk, Ukraine

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 416卷 / 1-2期

关键词：

chalcogenides; isothermal section; crystal structure; phase diagram; X-ray powder diffraction; differential-thermal analysis; microstructure analysis;

D O I：

10.1016/j.jallcom.2005.08.022

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：

Phase diagram of the Cu2Se-PbSe system was constructed using differential-thermal analysis, X-ray diffraction and metallography. The eutectic reaction L double left right arrow beta-Cu2Se + PbSe takes place at 886 K and corresponds to 46 mol% PbSe. The peritectoid reaction beta-Cu2Se + PbSe double left right arrow alpha-Cu2Se takes place at 420 K. The formation of the PrCuSe2 compound (LaCuS2 structure type, space group P2(1)/c) and the solid solution range Pr2Se3-Pr2PbSe4 (Th3P4 structure type, space group I (4) over bar 3d, a = 0.89916(2) nm, R-I = 0.0682 for Pr2PbSe4) was confirmed using X-ray powder diffraction. The interactions between the components in the Pr2Se3-Cu2Se-PbSe and Pr2Se3-Ag2Se-PbSe systems at 870 K were determined using X-ray powder diffraction. No quaternary compounds exist in these systems. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：106 / 109

页数：4

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