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Fabrication of transparent lead-free KNN glass ceramics by incorporation method

The incorporation method was employed to produce potassium sodium niobate [KNN] (K(0.5)Na(0.5)NbO(3)) glass ceramics from the KNN-SiO(2 )system. This incorporation method combines a simple mixed-oxide technique for producing KNN powder and a conventional melt-quenching technique to form the resultin...

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Autores principales: Yongsiri, Ploypailin, Eitssayeam, Sukum, Rujijanagul, Gobwut, Sirisoonthorn, Somnuk, Tunkasiri, Tawee, Pengpat, Kamonpan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3297504/
https://www.ncbi.nlm.nih.gov/pubmed/22340426
http://dx.doi.org/10.1186/1556-276X-7-136
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author Yongsiri, Ploypailin
Eitssayeam, Sukum
Rujijanagul, Gobwut
Sirisoonthorn, Somnuk
Tunkasiri, Tawee
Pengpat, Kamonpan
author_facet Yongsiri, Ploypailin
Eitssayeam, Sukum
Rujijanagul, Gobwut
Sirisoonthorn, Somnuk
Tunkasiri, Tawee
Pengpat, Kamonpan
author_sort Yongsiri, Ploypailin
collection PubMed
description The incorporation method was employed to produce potassium sodium niobate [KNN] (K(0.5)Na(0.5)NbO(3)) glass ceramics from the KNN-SiO(2 )system. This incorporation method combines a simple mixed-oxide technique for producing KNN powder and a conventional melt-quenching technique to form the resulting glass. KNN was calcined at 800°C and subsequently mixed with SiO(2 )in the KNN:SiO(2 )ratio of 75:25 (mol%). The successfully produced optically transparent glass was then subjected to a heat treatment schedule at temperatures ranging from 525°C -575°C for crystallization. All glass ceramics of more than 40% transmittance crystallized into KNN nanocrystals that were rectangular in shape and dispersed well throughout the glass matrix. 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. The transparency of the glass samples decreased with increasing crystal size. The maximum room temperature dielectric constant (ε(r)) was as high as 474 at 10 kHz with an acceptable low loss (tanδ) around 0.02 at 10 kHz.
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spelling pubmed-32975042012-03-09 Fabrication of transparent lead-free KNN glass ceramics by incorporation method Yongsiri, Ploypailin Eitssayeam, Sukum Rujijanagul, Gobwut Sirisoonthorn, Somnuk Tunkasiri, Tawee Pengpat, Kamonpan Nanoscale Res Lett Nano Express The incorporation method was employed to produce potassium sodium niobate [KNN] (K(0.5)Na(0.5)NbO(3)) glass ceramics from the KNN-SiO(2 )system. This incorporation method combines a simple mixed-oxide technique for producing KNN powder and a conventional melt-quenching technique to form the resulting glass. KNN was calcined at 800°C and subsequently mixed with SiO(2 )in the KNN:SiO(2 )ratio of 75:25 (mol%). The successfully produced optically transparent glass was then subjected to a heat treatment schedule at temperatures ranging from 525°C -575°C for crystallization. All glass ceramics of more than 40% transmittance crystallized into KNN nanocrystals that were rectangular in shape and dispersed well throughout the glass matrix. 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. The transparency of the glass samples decreased with increasing crystal size. The maximum room temperature dielectric constant (ε(r)) was as high as 474 at 10 kHz with an acceptable low loss (tanδ) around 0.02 at 10 kHz. Springer 2012-02-16 /pmc/articles/PMC3297504/ /pubmed/22340426 http://dx.doi.org/10.1186/1556-276X-7-136 Text en Copyright ©2012 Yongsiri et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Yongsiri, Ploypailin
Eitssayeam, Sukum
Rujijanagul, Gobwut
Sirisoonthorn, Somnuk
Tunkasiri, Tawee
Pengpat, Kamonpan
Fabrication of transparent lead-free KNN glass ceramics by incorporation method
title Fabrication of transparent lead-free KNN glass ceramics by incorporation method
title_full Fabrication of transparent lead-free KNN glass ceramics by incorporation method
title_fullStr Fabrication of transparent lead-free KNN glass ceramics by incorporation method
title_full_unstemmed Fabrication of transparent lead-free KNN glass ceramics by incorporation method
title_short Fabrication of transparent lead-free KNN glass ceramics by incorporation method
title_sort fabrication of transparent lead-free knn glass ceramics by incorporation method
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3297504/
https://www.ncbi.nlm.nih.gov/pubmed/22340426
http://dx.doi.org/10.1186/1556-276X-7-136
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