Thermoluminescence and defect study of MgSiO3 ceramics
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Thermoluminescence and defect study of MgSiO3 ceramics
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| Creator |
Nagabhushana, H
Nagabhushana, B M Umesh, B Premkumar, H B Anil, Nalina Rao, T K Gundu Chakradhar, R P S |
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| Subject |
Engineering Materials
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| Description |
Enstatite (MgSiO3) ceramic powders were synthesised by a low-temperature initiated self-propagating, gas-producing solution combustion process. The prepared powders were characterised by powder X-ray diffraction, scanning electron microscopy and Brunauer-Emmer-Teller specific surface area measurements. Defect centres induced by radiation were studied using the techniques of thermoluminescence (TL) and electron spin resonance (ESR). A well-resolved glow with peak at 178 degrees C and a shouldered peak at 120 degrees C were observed. Two defect centres were identified by ESR measurements, which were carried out at room temperature, and these were assigned to an O- ion and F+ centre. The O- ion (hole centre) appears to correlate with the main TL peak at 178 degrees C.
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| Publisher |
Taylor & Francis
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| Date |
2010
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/823/1/nagabhushana.pdf
Nagabhushana, H and Nagabhushana, B M and Umesh, B and Premkumar, H B and Anil, Nalina and Rao, T K Gundu and Chakradhar, R P S (2010) Thermoluminescence and defect study of MgSiO3 ceramics. Philosophical Magazine, 90 (12). pp. 1567-1574. ISSN 1478-6435 |
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| Relation |
http://cgcri.csircentral.net/823/
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