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Iranian Journal of Materials Science and Engineering، جلد ۸، شماره ۲، صفحات ۴۱-۴۷
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عنوان انگلیسی SYNTHESIS AND CHARACTERIZATION OFSILICON CARBIDE NANO POWDER BYSOLGELPROCESSING
چکیده انگلیسی مقاله Abstract: SiC nano particles with mono dispersed distribution were synthesized by using of silicon alkoxides and phenolic resin as starting materials. After synthesis of sample, characterizations of the obtained powder were investigated via Fourier Transform Infrared Spectroscopy (FTIR) with 400-4000 cm-1, X-ray Diffractometry (XRD), Laser Particle Size Analyzing (LPSA), Si29 NMR analysis, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). FTIR and Si29 NMR results of the gel powder indicated that Si-O-C bonds were formed due to hydrolysis and condensation reactions . FTIR results showed a very strong peak for heat treated powder at 1500°C after carbon removal which is corresponded to Si-C bond. Obtained pattern from X-ray diffractometry showed that the final products contain -SiC phase with poly crystalline planes and little amounts of residual carbon. PSA results showed that the average particles size were 50.6 nm with monosized distribution. Also microstructural studies showed that the SiC nano powders have semi spherical morphology with mean particles size of 30-50 nm and also there are some agglomerates with irregular shape.
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نویسندگان مقاله اکبر نجفی | a najafi
1 school of metallurgy and materials engineering, iran university of science and technology, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)

f گلستانی فرد | f golestani fard
2 center of excellence for advanced materials, iran university of science and technology, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)

h r رضایی | h r rezaie
2 center of excellence for advanced materials, iran university of science and technology, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)

n احسانی | n ehsani
1 school of metallurgy and materials engineering, iran university of science and technology, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)

نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3-148&slc_lang=en&sid=en
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Research paper
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