Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system

Copyright © 2015 American Scientific PublishersAll rights reserved. The incorporation method was employed to produce ferroelectric glass ceramics from the K2O-Nb2O5-B2O3 glass system. The nanocrystalline potassium niobate (KNbO3) was first prepared using a simple mixed oxide method, where the B2O3 w...

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Main Authors: Chatchai Kruea-In, Pratthana Intawin, Wilaiwan Leenakul
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/54242
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-542422018-09-04T10:25:36Z Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system Chatchai Kruea-In Pratthana Intawin Wilaiwan Leenakul Chemical Engineering Chemistry Engineering Materials Science Physics and Astronomy Copyright © 2015 American Scientific PublishersAll rights reserved. The incorporation method was employed to produce ferroelectric glass ceramics from the K2O-Nb2O5-B2O3 glass system. The nanocrystalline potassium niobate (KNbO3) was first prepared using a simple mixed oxide method, where the B2O3 was initially mixed and then melted to form glass. The successfully produced optically transparent glass was then subjected to a heat treatment schedule for further crystallization at temperatures ranging from 500 to 650 °C, which resulted in the precipitation of the KNbO3 phase, together with the K3B2Nb3O12 phase. Scanning electron microscopy (SEM) showed the presence of randomly oriented KNbO3 crystals dispersed in a continuous glass matrix. It was found that the glass ceramics subjected to the heat treatment at temperatures higher than 545 °C were opaque, while the lower gave a highly transparent glass ceramics. The crystal size and crystallinity were found to increase with increasing heat treatment temperature, which in turn plays an important role in controlling the properties of the glass ceramics, including physical, optical, and dielectric properties. 2018-09-04T10:09:58Z 2018-09-04T10:09:58Z 2015-11-01 Journal 15334899 15334880 2-s2.0-84944790642 10.1166/jnn.2015.11410 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84944790642&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/54242
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemical Engineering
Chemistry
Engineering
Materials Science
Physics and Astronomy
spellingShingle Chemical Engineering
Chemistry
Engineering
Materials Science
Physics and Astronomy
Chatchai Kruea-In
Pratthana Intawin
Wilaiwan Leenakul
Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system
description Copyright © 2015 American Scientific PublishersAll rights reserved. The incorporation method was employed to produce ferroelectric glass ceramics from the K2O-Nb2O5-B2O3 glass system. The nanocrystalline potassium niobate (KNbO3) was first prepared using a simple mixed oxide method, where the B2O3 was initially mixed and then melted to form glass. The successfully produced optically transparent glass was then subjected to a heat treatment schedule for further crystallization at temperatures ranging from 500 to 650 °C, which resulted in the precipitation of the KNbO3 phase, together with the K3B2Nb3O12 phase. Scanning electron microscopy (SEM) showed the presence of randomly oriented KNbO3 crystals dispersed in a continuous glass matrix. It was found that the glass ceramics subjected to the heat treatment at temperatures higher than 545 °C were opaque, while the lower gave a highly transparent glass ceramics. The crystal size and crystallinity were found to increase with increasing heat treatment temperature, which in turn plays an important role in controlling the properties of the glass ceramics, including physical, optical, and dielectric properties.
format Journal
author Chatchai Kruea-In
Pratthana Intawin
Wilaiwan Leenakul
author_facet Chatchai Kruea-In
Pratthana Intawin
Wilaiwan Leenakul
author_sort Chatchai Kruea-In
title Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system
title_short Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system
title_full Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system
title_fullStr Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system
title_full_unstemmed Preparation of ferroelectric KNbO<inf>3</inf> based borate glass system
title_sort preparation of ferroelectric knbo<inf>3</inf> based borate glass system
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84944790642&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/54242
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