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Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders

  • Yeon Hwang , Doh-Hyung Riu , Hong-Jeon Kang , Ju-hyun An , Woo Sub Jung , Dongil Chun and Youngseok Kim
Published/Copyright: April 12, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 4

Abstract

β-SiC powders were synthesized via a direct carbothermal reaction between solid silicon and SiO2-coated carbon powders. An SiO2 layer can be coated on carbon powders by appropriately controlling the ratios of 3-aminopropyltriethoxysilane (APTES) and tetraethoxysilane (TEOS). The mixture of silicon and SiO2-coated carbon was reacted at 1 500 °C for 1 h in an Ar atmosphere. The morphologies of the SiO2-coated carbon and the synthesized SiC powders were examined, and the phase evolution in the SiC powders during synthesis was analyzed. β-SiC powders with a particle size of around 200 nm were synthesized under SiO2-coating conditions of 0.2 – 0.6 mL of APTES and 0.8 – 0.4 mL of TEOS for 100 mg of carbon black powders. When no TEOS was used in the coating procedure, the β-SiC powders showed large and irregular shapes, while coating was not possible without the addition of APTES.

Keywords: β-SiC; Carbothermal reaction; SiO2-coated carbon
* Correspondence address, Prof. Yeon Hwang, Department of Materials Science and Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 139-743, Korea, Tel: +82 29706517, Fax: +82 29736657, E-mail:

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Received: 2013-07-08
Accepted: 2013-10-26
Published Online: 2014-04-12
Published in Print: 2014-04-14

© 2014, Carl Hanser Verlag, München

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  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure and residual stresses of laser remelted surfaces of a hot work tool steel
  5. Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy
  6. Hot ductility behavior of Incoloy901 superalloy in the cast and wrought conditions
  7. The influence of aluminium intermediate layer in dissimilar friction welds
  8. Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting
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  11. Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy
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  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
  14. Synthesis and application of TiO2 nanotubes in environmental pollutant removal
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  16. Short Communications
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  18. Atomic group rotation mechanism of {1013} twinning in HCP materials
  19. Self-propagation high-temperature sintering of the Ti–Al–C-diamond/BN system
  20. People
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https://doi.org/10.3139/146.111026
Keywords for this article
β-SiC; Carbothermal reaction; SiO2-coated carbon

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure and residual stresses of laser remelted surfaces of a hot work tool steel
  5. Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy
  6. Hot ductility behavior of Incoloy901 superalloy in the cast and wrought conditions
  7. The influence of aluminium intermediate layer in dissimilar friction welds
  8. Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting
  9. Approach to evaluation of the overall strengthening and toughening effect of continuous fiber-reinforced ceramic matrix composites
  10. The effect of SiC/Al2O3 particles used during FSP on mechanical properties of AZ91 magnesium alloy
  11. Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy
  12. Evaluation of corrosion performance of two Mn-containing stainless steel alloys
  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
  14. Synthesis and application of TiO2 nanotubes in environmental pollutant removal
  15. Mechanical properties of polyvinyl alcohol sponge under different strain rates
  16. Short Communications
  17. Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
  18. Atomic group rotation mechanism of {1013} twinning in HCP materials
  19. Self-propagation high-temperature sintering of the Ti–Al–C-diamond/BN system
  20. People
  21. The German Materials Society congratulates its long-time Managing Director Dr. Peter Paul Schepp on the occasion of his 65th birthday
  22. Dr. Margarethe Hofmann-Amtenbrink on her 65th birthday
  23. DGM News
  24. DGM News
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