Sintering AL2O3-CR composites made from micro-and Nan powders-Reference-Cited by-同舟云学术

Sintering AL2O3-CR composites made from micro-and Nan powders

Published:2004 Issue:3 Volume:36 Page:171-177
ISSN:0350-820X
Container-title:Science of Sintering
language:en
Short-container-title:SCI SINTER

Author:

Pietrzak K.¹,Chmielewski M.¹,Włosiński W.²

Affiliation:

1. Institute of Electronic Materials Technology, Warsaw, Poland

2. Warsaw University of Technology, Warsaw, Poland

Abstract

This paper presents the results of studies on sintering Al2O3-Cr composites of different chemical compositions (from 25 to 75 vol.% of each component). The factor analyzed was the influence of time (from 15 to 60 min) temperature (from 1200-1600?C), pressure (0.5 and 30 MPa) and powder graining (for Al2O3 powders-80nm or 1?m) on the density of sinters obtained. It was found that Nan powder composites are characterized by a higher density (by about 1-2%) than the micro powder composite, the remaining conditions of the process intact. Using the pressure of 30MPa allows obtaining of a definite sintering degree at a temperature of about 200?C lower than at a pressure of 0.5 MPa.

Publisher

National Library of Serbia

Subject

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

Reference5 articles.

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