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Synthesis of SiC nanowhiskers from graphite and silica by microwave heating Cover

Synthesis of SiC nanowhiskers from graphite and silica by microwave heating

Materials Science-Poland
Volume 34 (2016): Issue 4 (December 2016)
By: S.M. Kahar,  C.H. Voon,  C.C. Lee,  U. Hashim,  M.K. Md Arshad,  B.Y. Lim,  S.C.B. Gopinath and  W. Rahman  
Open Access
|Dec 2016

Figures & Tables

Setup for sample preparation inside the microwave cavity.
FESEM images of the mixtures of graphite and silica in the ratio of (a) 1:1; (b) 1:3; (c) 1:5 and (d) 1:7 after subjecting to microwave heating. Orange circle: SiO2 unreacted, blue circle: SiCNWs and red circle: unreacted graphite.
XRD patterns of SiCNW synthesized by microwave heating of the mixtures of SiO2 and graphite in the ratios of (a) 1:1; (b) 1:3; (c) 1:5 and (d) 1:7.
EDX spectra of the SiCNWs synthesized by using microwave heating from the mixtures of SiO2 and graphite with the ratios of (a) 1:1; (b) 1:3; (c) 1:5 and (d) 1:7.
FT-IR spectra of SiCNWs synthesized using the microwave heating from the blend of SiO2 and graphite in the ratio of (a) 1:1; (b) 1:3; (c) 1:5 and (d) 1:7.
PL spectrum of SiCNWs synthesized using the microwave heating from the mixture of SiO2 and graphite in the ratio of (a) 1:1; (b) 1:3; (c) 1:5 and (d) 1:7.
TGA curves obtained by microwave heating of SiCNWs synthesized from the mixtures of SiO2 and graphite in the ratios of (a) 1:3 (weight loss 6 %); (b) 1:1 (weight loss 8 %); (c) 1:5 (weight loss 45 %); (d) 1:7 (weight loss 65 %).
Interaction of microwave with graphite leading to dielectric heating of graphite.
Formation of a whisker by VS mechanism.
Schematic of SiCNWs growth from reaction of SiO and CO vapor.
DOI: https://doi.org/10.1515/msp-2016-0101 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 770 - 779
Submitted on: Feb 3, 2016
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Accepted on: Sep 3, 2016
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Published on: Dec 17, 2016
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
microwave heating,
silicon carbide nanowhiskers,
graphite,
silica
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2016 S.M. Kahar, C.H. Voon, C.C. Lee, U. Hashim, M.K. Md Arshad, B.Y. Lim, S.C.B. Gopinath, W. Rahman, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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