ZrC segregation to the surface of dilute solid solutions of zirconium carbide in niobium carbide

被引：8

作者：

Rempel', SV ^{[1
]}

Gusev, AI ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Div, Inst Solid State Chem, Ekaterinburg 620219, Russia

来源：

INORGANIC MATERIALS | 2001年 / 37卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1023/A:1012327126484

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Precipitation of crystalline ZrC in the surface region of dilute ZrC-NbC solid solutions (< 1.0 mot % ZrC) was revealed by electron microscopy, x-ray microanalysis, laser mass spectrometry, and x-ray diffraction. The ZrC precipitation was shown to be a consequence of the diffusional decomposition of the dilute Zr1-xNbxC solid solutions. The boundaries of the solid-miscibility gap in the ZrCy-NbCy, system were calculated. The segregation energy of zirconium carbide was estimated at -33.3 kJ/mol.

引用

页码：1024 / 1029

页数：6

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