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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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 |
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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 |
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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. |
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O. Khamman R. Yimnirun S. Ananta |
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O. Khamman R. Yimnirun S. Ananta |
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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 |
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2018 |
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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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