Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives

© 2017 Walter de Gruyter GmbH, Berlin/Boston 2017. Alumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: Alumina with silica (SiO 2 ) and alumina with silicon carbide (SiC; to allow oxidation to form SiO 2 ). After sintering, SiO 2 underwent co...

Full description

Saved in:
Bibliographic Details
Main Authors: Limpichaipanit A., Jiansirisomboon S., Tunkasiri T.
Format: Journal
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85023176493&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40257
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Chiang Mai University
id th-cmuir.6653943832-40257
record_format dspace
spelling th-cmuir.6653943832-402572017-09-28T04:08:35Z Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives Limpichaipanit A. Jiansirisomboon S. Tunkasiri T. © 2017 Walter de Gruyter GmbH, Berlin/Boston 2017. Alumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: Alumina with silica (SiO 2 ) and alumina with silicon carbide (SiC; to allow oxidation to form SiO 2 ). After sintering, SiO 2 underwent complete reaction to form alumina/mullite composites. In terms of microstructure, the density and grain size of ceramic samples were investigated. The density of the composites prepared by alumina and SiC was lower than those of alumina and the composites prepared by alumina and SiO 2 . The grain size increased as the sintering temperature increased. In terms of mechanical properties, fracture surfaces, hardness, and fracture toughness were investigated. It was found that the fracture surface of alumina was rather intergranular, whereas the fracture surface of the composites was more transgranular. The hardness of the composites was higher than that of alumina at the same sintering temperature. However, the fracture toughness of the composites was not significantly different compared to that of alumina. 2017-09-28T04:08:35Z 2017-09-28T04:08:35Z 4 Journal 0334181X 2-s2.0-85023176493 10.1515/secm-2014-0353 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85023176493&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40257
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2017 Walter de Gruyter GmbH, Berlin/Boston 2017. Alumina-based composites were fabricated by reaction sintering from two different sintering powder mixtures: Alumina with silica (SiO 2 ) and alumina with silicon carbide (SiC; to allow oxidation to form SiO 2 ). After sintering, SiO 2 underwent complete reaction to form alumina/mullite composites. In terms of microstructure, the density and grain size of ceramic samples were investigated. The density of the composites prepared by alumina and SiC was lower than those of alumina and the composites prepared by alumina and SiO 2 . The grain size increased as the sintering temperature increased. In terms of mechanical properties, fracture surfaces, hardness, and fracture toughness were investigated. It was found that the fracture surface of alumina was rather intergranular, whereas the fracture surface of the composites was more transgranular. The hardness of the composites was higher than that of alumina at the same sintering temperature. However, the fracture toughness of the composites was not significantly different compared to that of alumina.
format Journal
author Limpichaipanit A.
Jiansirisomboon S.
Tunkasiri T.
spellingShingle Limpichaipanit A.
Jiansirisomboon S.
Tunkasiri T.
Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
author_facet Limpichaipanit A.
Jiansirisomboon S.
Tunkasiri T.
author_sort Limpichaipanit A.
title Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
title_short Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
title_full Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
title_fullStr Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
title_full_unstemmed Sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
title_sort sintering temperature-microstructure-property relationships of alumina matrix composites with silicon carbide and silica additives
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85023176493&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40257
_version_ 1681421776406446080