Mechanical and tribological properties of Fe/Cr FeAl2O4-Al2O3 nano/micro hybrid composites prepared by spark plasma sintering

被引：9

作者：

Santanach, J. Gurt ^{[1
]}

Estournes, C. ^{[1
]}

Weibel, A. ^{[1
]}

Peigney, A. ^{[1
]}

Chevallier, G. ^{[1
]}

Laurent, Ch. ^{[1
]}

机构：

[1] Univ Toulouse 3, CIRIMAT, UMR CNRS UPS INP 5085, F-31062 Toulouse 9, France

来源：

SCRIPTA MATERIALIA | 2011年 / 64卷 / 08期

关键词：

Spark plasma sintering; Particulate reinforced composites; Alumina; Nanocomposite; Friction; WEAR BEHAVIOR; ALUMINA; MICROSTRUCTURE; NANOPARTICLES; FABRICATION; CONTACT; TOOL;

D O I：

10.1016/j.scriptamat.2010.12.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fe/Cr-Al2O3 nanocomposite powders are prepared by H-2 selective reduction of oxide solid solutions. These powders, an alumina powder and a starting oxide powder, are sintered by spark plasma sintering. The microstructure of the resulting materials is studied. The composites show a lower microhardness and higher fracture strength than unreinforced alumina. The friction coefficient against an alumina ball is lower, revealing the role of the intergranular metal particles, whereas FeAl2O4 grains formed during SPS are beneficial for higher cycle numbers. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：777 / 780

页数：4

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