Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction

Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction

A wolframite-type phase of indium niobate, InNbO4, has been synthesized by a solid-state reaction via a rapid vibro-milling technique. The formation of the InNbO4 phase in the calcined powders has been investigated as a function of calcination conditions by TG-DTA and XRD techniques. Morphology, par...

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Main Authors: Wongsaenmai S., Yimnirun R., Ananta S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-34147191945&partnerID=40&md5=d6a4690b693b9d1f6f63cc46f876c4cc
http://cmuir.cmu.ac.th/handle/6653943832/5268
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-52682014-08-30T02:56:20Z Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction Wongsaenmai S. Yimnirun R. Ananta S. A wolframite-type phase of indium niobate, InNbO4, has been synthesized by a solid-state reaction via a rapid vibro-milling technique. The formation of the InNbO4 phase in the calcined powders has been investigated as a function of calcination conditions by TG-DTA and XRD techniques. Morphology, particle size and chemical composition have been determined via a combination of SEM and EDX techniques. It has been found that single-phase InNbO4 powders have been obtained successfully at the calcination condition of 950 °C for 2 h with heating/cooling rates of 30 °C/min. Higher temperatures and longer dwell times clearly favoured particle growth and the formation of large and hard agglomerates. © 2006 Elsevier B.V. All rights reserved. 2014-08-30T02:56:20Z 2014-08-30T02:56:20Z 2007 Article 0167577X 10.1016/j.matlet.2006.09.028 MLETD http://www.scopus.com/inward/record.url?eid=2-s2.0-34147191945&partnerID=40&md5=d6a4690b693b9d1f6f63cc46f876c4cc http://cmuir.cmu.ac.th/handle/6653943832/5268 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description A wolframite-type phase of indium niobate, InNbO4, has been synthesized by a solid-state reaction via a rapid vibro-milling technique. The formation of the InNbO4 phase in the calcined powders has been investigated as a function of calcination conditions by TG-DTA and XRD techniques. Morphology, particle size and chemical composition have been determined via a combination of SEM and EDX techniques. It has been found that single-phase InNbO4 powders have been obtained successfully at the calcination condition of 950 °C for 2 h with heating/cooling rates of 30 °C/min. Higher temperatures and longer dwell times clearly favoured particle growth and the formation of large and hard agglomerates. © 2006 Elsevier B.V. All rights reserved.
format Article
author Wongsaenmai S.
Yimnirun R.
Ananta S.
spellingShingle Wongsaenmai S.
Yimnirun R.
Ananta S.
Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
author_facet Wongsaenmai S.
Yimnirun R.
Ananta S.
author_sort Wongsaenmai S.
title Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
title_short Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
title_full Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
title_fullStr Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
title_full_unstemmed Effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
title_sort effects of calcination conditions on phase formation and particle size of indium niobate nanopowders synthesized by the solid-state reaction
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-34147191945&partnerID=40&md5=d6a4690b693b9d1f6f63cc46f876c4cc
http://cmuir.cmu.ac.th/handle/6653943832/5268
_version_ 1681420393096675328

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