List of Articles سیلیکون کاربید

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  1 - Improvement of Microstructure and Mechanical Properties of Alumina/Silicon Carbide Nanocomposite via Multi-step Sintering
  M.R. Khademalhoseini S.S. Mirzaee D. Ghahremani
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  2 - Effect of Percent and Grain Size of Second Phase on Microstructure of Mullite-Silicon Carbide Nano-composite Fabricated via Two-step Sintering
  S.S. Mirzaee E. Salahi T. Ebadzadeh
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  3 - Synthesis of graphitic silicon carbide (g-SiC) from gelatin and silica foam for photocatalytic removal of organic and biological pollutants in water
  maryam afsharpour aref rostami
  10.30495/jacr.2023.1976773.2078
  In this research, porous graphitic silicon carbide (g-SiC) doped with nitrogen was synthesized as a metal-free photocatalyst by using silica foam as a silicon source and gelatin as a carbon source. The photocatalytic property of this compound was evaluated in the photoc More

  In this research, porous graphitic silicon carbide (g-SiC) doped with nitrogen was synthesized as a metal-free photocatalyst by using silica foam as a silicon source and gelatin as a carbon source. The photocatalytic property of this compound was evaluated in the photocatalytic removal of azo dyes and gram positive and negative bacteria in visible light. The g-SiC showed a very high potential to remove organic pollutants (99 % in 10 minutes) compared to commercial SiC (8 % in 10 minutes). This enhancement in photocatalytic performance is related to the graphenic structure of this compound, which increases electron transfers and reduces the rate of recombination. Also, the oxygen molecules which dissolved in water can adsorbed on positive charged Si atoms in g-SiC structure and produce oxygenated radicals. These radicals can accelerate photocatalytic reactions as an active species. On the other hand, the use of silica foam increases the surface area, and with the nitrogen doping from the gelatin source, more structural defects, higher absorption, and a smaller band gap are created in the structure, which increases the photocatalytic activity. The obtained results show that this compound can remove azo dyes up to 100% and bacteria up to 80%. Manuscript profile
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  4 - سنتز پرکننده‌ی نانو سیلیکون کاربید آمین دار شده و کاربرد آن به‌منظور بهبود ویژگی‌های مکانیکی کامپوزیت بر پایه‌ی رزین اپوکسی
  سید مجتبی موسوی مهرداد امام وردی اکبر میرزایی
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  5 - Coating of Steel by Long Alkyd Resin Reinforced with SiC Nanoparticles to Improve its Corrosion Resistance
  Hamideh Esmaeili Sanaz Naghibi Shirin Kordzangeneh
  To improve the properties of the organic coatings ceramic nanoparticles can be applied. In the present study, inorganic-organic nanocomposite coating contains SiC nnoparticles and alkyd resin was applied on the stainless still substrates. In this regard 1, 2 and 3 wt% o More

  To improve the properties of the organic coatings ceramic nanoparticles can be applied. In the present study, inorganic-organic nanocomposite coating contains SiC nnoparticles and alkyd resin was applied on the stainless still substrates. In this regard 1, 2 and 3 wt% of SiC nanoparticles were used to prepare the nanocomposite. In order to achieve a homogeneous mixture of nanoparticles and polymeric resin, magnetic stirrer and ultrasonic device were used. The coatings were deposited on the substrates by dipping technique. To study the morphology thickness and surface of the coatings, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used. The corrosion resistance of the coatings was investigated by polarization Tafel test, electrochemical impedance spectroscopy (EIS) and salt spray. Corrosion test results showed a reduction of corrosion current and an increasing in the corrosion resistance of substrate with nanocomposites coating and the sample with 3 wt% nanoparticles was selected as optimum sample by reducing current density from 9/2×10-6 to 2/2×10-9. The results of adhesion test by cross-cut method showed the reduction of coating separation from 9% to 4%. The coating thickness of sample was measured about 20 μm. Manuscript profile