Thermoluminescence and defect study of MgSiO3 ceramics
DSpace at IIT Bombay
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Title |
Thermoluminescence and defect study of MgSiO3 ceramics
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Creator |
NAGABHUSHANA, H
NAGABHUSHANA, BM UMESH, B PREMKUMAR, HB ANIL, N RAO, TKG CHAKRADHAR, RPS |
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Subject |
forsterite
phosphor esr ceramics luminescence enstatite gamma irradiation esr |
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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 LTD
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Date |
2011-08-31T06:44:05Z
2011-12-26T12:59:24Z 2011-12-27T05:51:26Z 2011-08-31T06:44:05Z 2011-12-26T12:59:24Z 2011-12-27T05:51:26Z 2010 |
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Type |
Article
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Identifier |
PHILOSOPHICAL MAGAZINE, 90(12), 1567-1574
1478-6435 http://dx.doi.org/10.1080/14786430903413367 http://dspace.library.iitb.ac.in/xmlui/handle/10054/12616 http://hdl.handle.net/10054/12616 |
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Language |
en
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