Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction

The solid-state mixed oxide method via a rapid vibro-milling technique is explored in the preparation of single-phase nickel diniobate (Ni4Nb2O9) powders. The formation of the Ni4Nb2O9phase in the calcined powders has been investigated as a function of calcination conditions by TG-DTA and XRD techni...

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Main Authors: O. Khamman, R. Yimnirun, S. Ananta
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/61085
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-610852018-09-10T04:10:37Z Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction O. Khamman R. Yimnirun S. Ananta Engineering Materials Science Physics and Astronomy The solid-state mixed oxide method via a rapid vibro-milling technique is explored in the preparation of single-phase nickel diniobate (Ni4Nb2O9) powders. The formation of the Ni4Nb2O9phase 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 minor phases of unreacted NiO and Nb2O5precursors and NiNb2O6phase tend to form together with the Ni4Nb2O9phase, depending on calcination conditions. It is seen that optimization of calcination conditions can lead to a single-phase Ni4Nb2O9in an orthorhombic phase. © 2006 Elsevier B.V. All rights reserved. 2018-09-10T04:04:00Z 2018-09-10T04:04:00Z 2007-05-01 Journal 0167577X 2-s2.0-34147153180 10.1016/j.matlet.2006.09.056 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34147153180&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61085
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
Physics and Astronomy
spellingShingle Engineering
Materials Science
Physics and Astronomy
O. Khamman
R. Yimnirun
S. Ananta
Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction
description The solid-state mixed oxide method via a rapid vibro-milling technique is explored in the preparation of single-phase nickel diniobate (Ni4Nb2O9) powders. The formation of the Ni4Nb2O9phase 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 minor phases of unreacted NiO and Nb2O5precursors and NiNb2O6phase tend to form together with the Ni4Nb2O9phase, depending on calcination conditions. It is seen that optimization of calcination conditions can lead to a single-phase Ni4Nb2O9in an orthorhombic phase. © 2006 Elsevier B.V. All rights reserved.
format Journal
author O. Khamman
R. Yimnirun
S. Ananta
author_facet O. Khamman
R. Yimnirun
S. Ananta
author_sort O. Khamman
title Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction
title_short Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction
title_full Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction
title_fullStr Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction
title_full_unstemmed Phase and morphology evolution of corundum-type Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf>powders synthesized by solid-state reaction
title_sort phase and morphology evolution of corundum-type ni<inf>4</inf>nb<inf>2</inf>o<inf>9</inf>powders synthesized by solid-state reaction
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34147153180&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61085
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