Microstructural characterization of novel Mo-Re-Al2O3 composite

被引：8

作者：

Dubiel, Beata ^{[1
]}

Chmielewski, Marcin ^{[2
]}

Moskalewicz, Tomasz ^{[1
]}

Gruszczynski, Adam ^{[1
]}

Czyrska-Filemonowicz, Aleksandra ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Int Ctr Electron Microscopy Mat Sci, Fac Met Engn & Ind Comp Sci, PL-30059 Krakow, Poland

[2] Inst Elect Mat Technol, PL-01919 Warsaw, Poland

来源：

MATERIALS LETTERS | 2014年 / 124卷

关键词：

Mo-Re-Al2O3; composite; Rhenium; Porosity; FIB-SEM tomography; CERAMIC-MATRIX COMPOSITES;

D O I：

10.1016/j.matlet.2014.02.098

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mo-Al2O3 composites are the promising materials for high temperature applications. Their mechanical properties can be improved by addition of rhenium. In the present work a novel 98%(75Mo/25Al(2)O(3))+ 2%Re (vol%) composite was produced by the powder metallurgy route. Electron microscopy images combined with elemental maps have shown the distribution of rhenium in molybdenum matrix. The new composite exhibits high relative density of 98.1%. FIB-SEM tomography revealed the 3D arrangement and morphology of pores. Pores irregular in shape are distributed on metal/ceramic grain boundaries, while within the grains almost spherical pores are present. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：137 / 140

页数：4

共 14 条

[1]

[Anonymous], 1993, EN6322

[2]

[Anonymous], 1990, MET HDB, V2, p[557, 581, 1150]

[3] MICROSTRUCTURE AND PROPERTIES OF HOT-PRESSED MOLYBDENUM-ALUMINA COMPOSITES [J].