A study of the structural evolution of the sol-gel derived Sm3+-doped silica glass
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
A study of the structural evolution of the sol-gel derived Sm3+-doped silica glass
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| Creator |
Patra, Amitava
Kundu, Debtosh Ganguli, Dibyendu |
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| Subject |
Glass
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| Description |
Sm3+-doped silica gels have been prepared by a sol-gel process using tetraethyl orthosilicate, H2O, HCl and Sm(NO3)(3) . 6H(2)O. The structural evolution and densification behaviour of the gels during thermal treatment have been monitored by physical property measurements, visible-MR, IR and fluorescence spectroscopy. The gels show a continuous densification and strengthening of the silica network with increasing heat-treatment temperatures (60-100 degrees C). The fluorescence intensity ratio of the (4)G(5/2) —> 6H(9/2) to (4)G(5/2) —> H-6(5/2) transition has been used to study the change of Sm3+ environment during gel-glass conversion. Samarium passes through three different environments at different heat-treatment temperatures during gel to glass conversion.
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| Publisher |
Elsevier
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| Date |
1997-07
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/1628/1/patra.pdf
Patra, Amitava and Kundu, Debtosh and Ganguli, Dibyendu (1997) A study of the structural evolution of the sol-gel derived Sm3+-doped silica glass. Materials Letters, 32 (1). pp. 43-47. ISSN 0167-577X |
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| Relation |
http://cgcri.csircentral.net/1628/
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