Z < 60-Rare earth promoted alpha-Si3N4 solid solution: Praseodymium
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Z < 60-Rare earth promoted alpha-Si3N4 solid solution: Praseodymium
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| Creator |
Bandyopadhyay, Siddhartha
Halder, Rupa Bysakh, Sandip Biswas, Mita Haldar, Barun |
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| Subject |
Engineering Materials
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| Description |
So long, larger sized rare earth cations than Neodymium (Z=60) were reported to form alpha-SiAlON either in a multi-cation system containing smaller cations or by following special processing conditions. In this study, Praseodymium (Z=59) alone is observed for the first time to promote alpha-SiAlON as a single crystalline phase, prepared under conventional processing conditions of heating and cooling cycle. The appearance of alpha-SiAlON is restricted to the compositional area corresponding to a high level substitution of m(RE1/3Al-N) for m(Si-N) bonds. Microstructure exhibits strain contrast in grains and array of dislocations in low angle grain boundary indicating deformation in lattice. (C) 2015 Elsevier Ltd. All rights reserved.
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| Publisher |
Elsevier, European Ceramic Society
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| Date |
2015-11
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/2921/1/bandyopadhyay.pdf
Bandyopadhyay, Siddhartha and Halder, Rupa and Bysakh, Sandip and Biswas, Mita and Haldar, Barun (2015) Z < 60-Rare earth promoted alpha-Si3N4 solid solution: Praseodymium. Journal of the European Ceramic Society, 35 (14). pp. 4011-4016. ISSN 0955-2219 |
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| Relation |
http://cgcri.csircentral.net/2921/
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