UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate

Bismuth borosilicate glasses doped with various amounts of potassium chromate (Cr doping) were prepared by a normal melt quenching technique. The glass texture was clear and bubble free and the glass colors changed from light green to opaque green with increased Cr doping. The glass density was foun...

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Main Authors: Jirapan Dutchaneephet, Pisutti Dararutana, Narin Sirikulrat
Format: บทความวารสาร
Language:English
Published: Science Faculty of Chiang Mai University 2019
Online Access:http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8297
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63934
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spelling th-cmuir.6653943832-639342019-05-07T09:59:39Z UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate Jirapan Dutchaneephet Pisutti Dararutana Narin Sirikulrat Bismuth borosilicate glasses doped with various amounts of potassium chromate (Cr doping) were prepared by a normal melt quenching technique. The glass texture was clear and bubble free and the glass colors changed from light green to opaque green with increased Cr doping. The glass density was found to vary with Cr doping, and the maximum density of about 3.34 g/cm3 was obtained in the specimen doped with 0.5 mass% Cr. The UV-Vis spectra of Cr doped glass showed a strong UV absorption with a sharp increase of transmission spectra beyond the so-called cutoff wavelength, and it was found to shift to a longer wavelength from about 397 nm to 506 nm as the Cr doping content increased from 0.02 to 3%. Thecutoff wavelengths of Cr doped glasses and the Cr doping content were found to reflect a logarithmic relationship. Furthermore, the increase of Cr doping was found to affect not only the opacity of the glass but also the shift of the characteristic wavelengths from about 537 nm to 576 nm. Results from dielectric measurement showed that both dielectric constant and loss tangent were rather low, with the values deviating in the range of about 12-23 and 0.1-0.5 at 1 kHz respectively. 2019-05-07T09:59:39Z 2019-05-07T09:59:39Z 2017 บทความวารสาร 0125-2526 http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8297 http://cmuir.cmu.ac.th/jspui/handle/6653943832/63934 Eng Science Faculty of Chiang Mai University
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Bismuth borosilicate glasses doped with various amounts of potassium chromate (Cr doping) were prepared by a normal melt quenching technique. The glass texture was clear and bubble free and the glass colors changed from light green to opaque green with increased Cr doping. The glass density was found to vary with Cr doping, and the maximum density of about 3.34 g/cm3 was obtained in the specimen doped with 0.5 mass% Cr. The UV-Vis spectra of Cr doped glass showed a strong UV absorption with a sharp increase of transmission spectra beyond the so-called cutoff wavelength, and it was found to shift to a longer wavelength from about 397 nm to 506 nm as the Cr doping content increased from 0.02 to 3%. Thecutoff wavelengths of Cr doped glasses and the Cr doping content were found to reflect a logarithmic relationship. Furthermore, the increase of Cr doping was found to affect not only the opacity of the glass but also the shift of the characteristic wavelengths from about 537 nm to 576 nm. Results from dielectric measurement showed that both dielectric constant and loss tangent were rather low, with the values deviating in the range of about 12-23 and 0.1-0.5 at 1 kHz respectively.
format บทความวารสาร
author Jirapan Dutchaneephet
Pisutti Dararutana
Narin Sirikulrat
spellingShingle Jirapan Dutchaneephet
Pisutti Dararutana
Narin Sirikulrat
UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate
author_facet Jirapan Dutchaneephet
Pisutti Dararutana
Narin Sirikulrat
author_sort Jirapan Dutchaneephet
title UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate
title_short UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate
title_full UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate
title_fullStr UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate
title_full_unstemmed UV-vis Spectroscopic and Dielectric Properties of Bismuth Borosilicate Glasses Doped with Potassium Chromate
title_sort uv-vis spectroscopic and dielectric properties of bismuth borosilicate glasses doped with potassium chromate
publisher Science Faculty of Chiang Mai University
publishDate 2019
url http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8297
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63934
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