کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1474014 | 991072 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Z < 60- Rare earth promoted α-Si3N4 solid solution: Praseodymium
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
So long, larger sized rare earth cations than Neodymium (Z = 60) were reported to form α-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 α-SiAlON as a single crystalline phase, prepared under conventional processing conditions of heating and cooling cycle. The appearance of α-SiAlON is restricted to the compositional area corresponding to a high level substitution of m(RE1/3AlN) for m(SiN) bonds. Microstructure exhibits strain contrast in grains and array of dislocations in low angle grain boundary indicating deformation in lattice.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 35, Issue 14, November 2015, Pages 4011–4016
Journal: Journal of the European Ceramic Society - Volume 35, Issue 14, November 2015, Pages 4011–4016
نویسندگان
Siddhartha Bandyopadhyay, Rupa Halder, Sandip Bysakh, Mita Biswas, Barun Haldar,