Grain growth behavior in bismuth titanate-based ceramics

Bismuth titanate and lanthanum-doped bismuth titanate ceramics were prepared from freeze-dried powders employing conventional solid state reaction and sintering procedures. The sintering process was carried out at 1150 °C from 4 up to 48 h. X-ray diffraction analysis showed that preferred orientatio...

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Main Authors: Watcharapasorn A., Siriprapa P., Jiansirisomboon S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-70349774219&partnerID=40&md5=91d6608dd9fe8fa32ed68085231deb36
http://cmuir.cmu.ac.th/handle/6653943832/6376
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-63762014-08-30T03:24:08Z Grain growth behavior in bismuth titanate-based ceramics Watcharapasorn A. Siriprapa P. Jiansirisomboon S. Bismuth titanate and lanthanum-doped bismuth titanate ceramics were prepared from freeze-dried powders employing conventional solid state reaction and sintering procedures. The sintering process was carried out at 1150 °C from 4 up to 48 h. X-ray diffraction analysis showed that preferred orientation was reduced in bismuth titanate ceramic as sintering time increased while lanthanum-doped sample showed much less degree of preferred orientation and was independent of sintering time. Grain growth studies also showed that initial anisotropic grain growth rate was the main factor controlling the grain morphology, rendering the plate-shaped grain in both pure and lanthanum-doped bismuth titanate ceramics. Based on established grain growth law, pore-controlled diffusion could be the major mechanism determining the observed microstructure in these layered compounds. © 2009 Elsevier Ltd. All rights reserved. 2014-08-30T03:24:08Z 2014-08-30T03:24:08Z 2010 Article 9552219 10.1016/j.jeurceramsoc.2009.07.031 http://www.scopus.com/inward/record.url?eid=2-s2.0-70349774219&partnerID=40&md5=91d6608dd9fe8fa32ed68085231deb36 http://cmuir.cmu.ac.th/handle/6653943832/6376 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Bismuth titanate and lanthanum-doped bismuth titanate ceramics were prepared from freeze-dried powders employing conventional solid state reaction and sintering procedures. The sintering process was carried out at 1150 °C from 4 up to 48 h. X-ray diffraction analysis showed that preferred orientation was reduced in bismuth titanate ceramic as sintering time increased while lanthanum-doped sample showed much less degree of preferred orientation and was independent of sintering time. Grain growth studies also showed that initial anisotropic grain growth rate was the main factor controlling the grain morphology, rendering the plate-shaped grain in both pure and lanthanum-doped bismuth titanate ceramics. Based on established grain growth law, pore-controlled diffusion could be the major mechanism determining the observed microstructure in these layered compounds. © 2009 Elsevier Ltd. All rights reserved.
format Article
author Watcharapasorn A.
Siriprapa P.
Jiansirisomboon S.
spellingShingle Watcharapasorn A.
Siriprapa P.
Jiansirisomboon S.
Grain growth behavior in bismuth titanate-based ceramics
author_facet Watcharapasorn A.
Siriprapa P.
Jiansirisomboon S.
author_sort Watcharapasorn A.
title Grain growth behavior in bismuth titanate-based ceramics
title_short Grain growth behavior in bismuth titanate-based ceramics
title_full Grain growth behavior in bismuth titanate-based ceramics
title_fullStr Grain growth behavior in bismuth titanate-based ceramics
title_full_unstemmed Grain growth behavior in bismuth titanate-based ceramics
title_sort grain growth behavior in bismuth titanate-based ceramics
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-70349774219&partnerID=40&md5=91d6608dd9fe8fa32ed68085231deb36
http://cmuir.cmu.ac.th/handle/6653943832/6376
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