Effect of mechanical activation on the sintering of transition nanoscaled alumina-Reference-Cited by-同舟云学术

Effect of mechanical activation on the sintering of transition nanoscaled alumina

Published:2007 Issue:2 Volume:39 Page:117-125
ISSN:0350-820X
Container-title:Science of Sintering
language:en
Short-container-title:SCI SINTER

Author:

Bossert J.¹,Fidancevska E.²

Affiliation:

1. Friedrich Schiller University, Institute of Materials Science and Technology, Jena, Germany

2. Faculty of Technology and Metallurgy, University 'St. Cyril and Methodius', Skopje, Republic of Macedonia

Abstract

Consolidation of transition nanoscaled alumina (?, ?, ?, and ?-phase) at P=500 MPa and T=1500?C, gave compacts with density of 70%TD and a vermicular structure. After mechanical activation by attriting, the transformation rate of ?-Al2O3? ?-Al2O3 ? ?-Al2O3 ? ?-Al2O3 was reduced from 1126 to 1079oC. The density of the sintered compacts at 1500oC was 96%TD. The ?-Al2O3 microstructure exhibited a grain size distribution from 100 to 900 nm.

Publisher

National Library of Serbia

Subject

Materials Chemistry,Metals and Alloys,Condensed Matter Physics,Ceramics and Composites

Reference8 articles.

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2. Influence of Cr and Fe on Formation of alpha-Al2O3 from gamma-Al2O3

3. Structures and transformation mechanisms of the η, γ and θ transition aluminas

4. Alpha Alumina Formation in Alum-Derived Gamma Alumina

5. Sintering of Nanophase gamma-Al2O3 Powder

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