The 773 K isothermal section of the ternary phase diagram of the Nb-Ti-Si system

被引：11

作者：

Zhan, Yongzhong ^{[1
]}

Sun, Zan ^{[1
]}

Jiang, Jichao ^{[1
]}

Ma, Jianbo ^{[1
]}

Zhang, Xinjiang ^{[1
]}

Zhuang, Yinghong ^{[1
]}

机构：

[1] Guangxi Univ, Minist Educ, Key Lab Nonferrous Met Mat & New Proc Technol, Nanning 530004, Guangxi, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 468卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Metals and alloys; Phase diagrams; X-ray diffraction; Scanning electron microscopy; SEM; OXIDATION BEHAVIOR; EUTECTIC ALLOYS; MICROSTRUCTURE; AL;

D O I：

10.1016/j.jallcom.2008.01.009

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：

The isothermal section of the Nb-Ti-Si ternary system at 773 K has been investigated over the whole concentration range mainly by powder X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive analysis (EDX). This isothermal section consists of 10 single-phase regions, 17 two-phase regions, and 8 three-phase regions. The existence of the Ti3Si, Ti5Si3, Ti5Si4, TiSi, TiSi2, Nb5Si3, NbSi2 binary compounds at 773 K is confirmed. No new ternary compound is found, but six ternary solid solutions were found. The solubilities of Nb in TiSi2, TiSi, TiSi4, Ti5Si3 and Ti3Si were determined to be up to 21, 8, 12, 23, and 12 at.% Nb, respectively; the solubility of Nb in TiSi2, 20 at.% Ti. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：150 / 153

页数：4

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