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Photoluminescence study on irradiated yttria stabilized zirconia

DSpace at IIT Bombay

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Title Photoluminescence study on irradiated yttria stabilized zirconia
 
Creator HALDER, R
SENGUPTA, P
SUDARSAN, V
GHOSH, A
GHOSH, A
BHUKTA, A
SHARMA, G
SAMAJDAR, I
DEY, GK
 
Subject SWIFT HEAVY-IONS
CUBIC ZIRCONIA
SINGLE-CRYSTAL
LUMINESCENCE PROPERTIES
OXYGEN VACANCIES
HIGH-TEMPERATURE
DAMAGE
YSZ
IMPLANTATION
EVOLUTION
 
Description The structural variations within monoclinic, tetragonal and cubic zirconia pellets with different amounts of yttria doping and its subsequent exposure to various proton, silver ion and gamma irradiation fluxes were investigated using photoluminescence spectroscopy. Upon ion irradiation color centers were produced at doses >10(15) ions/cm(2) resulting in purple coloration. The decrease in photoluminescence intensity was observed for proton irradiated pellets except for tetragonal zirconia (6YSZ: 6 mol% Y2O3 doped ZrO2). The anomalous behaviour in case of tetragonal zirconia may result from short range ordering of oxygen vacancies around Zr ions occurring in order to relieve the stress/lattice distortions associated with proton impingement. (C) 2014 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-14T14:33:35Z
2016-01-14T14:33:35Z
2015
 
Type Article
 
Identifier JOURNAL OF NUCLEAR MATERIALS, 456,359-368
0022-3115
1873-4820
http://dx.doi.org/10.1016/j.jnucmat.2014.10.007
http://dspace.library.iitb.ac.in/jspui/handle/100/17734
 
Language en