Nanostructured metastable cermets of Ti-Al2O3 through activated SHS reaction

被引：38

作者：

Mas-Guindal, M. J. ^{[1
]}

Benko, E. ^{[2
]}

Rodriguez, M. A. ^{[1
]}

机构：

[1] CSIC, Inst Ceram & Vidrio, Madrid 28049, Spain

[2] IOS, PL-30011 Krakow, Poland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 454卷 / 1-2期

关键词：

composite materials; self-propagating high-temperature synthesis; X-ray diffraction;

D O I：

10.1016/j.jallcom.2006.12.105

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：

Cermets of Ti-Al2O3 are materials with promising applications in diverse fields like aeronautical or automobile industries. Recently, combustion synthesis (CS) has been used for its synthesis with very good results. In this paper, it is reported the use of self-propagating high-temperature synthesis (SHS) to obtain a metastable nanocrystalline cermet of alumina and titanium. As combustion synthesis is not self-sustaining, activation of the process has been made, either by applying field activation combustion synthesis (FACS) or by chemical activation, depending upon the conductivity of the sample. Quenching of reaction has allowed obtaining a metastable product with the configuration of high-temperature. Obtained materials have been characterised by SEM and XRD. Rietveld quantitative phase analysis and crystallite size calculations have been performed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：352 / 358

页数：7

共 31 条

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