Nanometric powder of stoichiometric silicon carbide produced in square-wave modulated RF glow discharges

Viera, G.; Sharma, S.N.; újar, J.L.; Zhang, R.Q; Costa, J.; Bertrán, E.

doi:10.1016/s0042-207x(98)00203-6

Cited by 14 publications

(1 citation statement)

References 12 publications

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“…In order to promote the formation of SiC in a short time at lower temperatures, it would be necessary to create a homogeneous mix with a carbon source on a molecular level. Several reports discuss the effect of the mixing of a carbon source and SiO 2 on the production of SiC powder [9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Preparation of cubic SiC from δ-Na₂Si₂O₅/carbon nanocomposite using cobalt catalyst

Park

Kwon²

2019

Science and Technology of Advanced Materials

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Silicon carbide (SiC) was prepared by carbothermal reduction of a crystalline-layered sodium silicate (δ-Na 2 Si 2 O 5)/carbon nanocomposite (LCN), which contained a stacked carbon film embedded with cobalt between the silicate layers. Subsequent sintering of this mixture for 3 h at 1000-1350°C resulted in the formation of graphitic carbon and SiC. Meanwhile, sintering without a cobalt catalyst resulted in the formation of graphitic carbon, regardless of the temperature. The use of a cobalt catalyst allowed the formation of a pure SiC phase at 1350°C. The formed SiC had an irregular worm-like morphology, with a particle size of~5 µm. The Brunauer-Emmett-Teller surface areas of graphitic carbon and SiC were 28-150 and~7.0 m 2 / g, respectively. We concluded that graphite and SiC were produced at this low sintering temperature because of the cobalt catalyst, which facilitated nanomixing of carbon and SiO 2 by sandwiching the carbon films between the silicate layers.

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Section: Introductionmentioning

confidence: 99%

Preparation of cubic SiC from δ-Na₂Si₂O₅/carbon nanocomposite using cobalt catalyst

Park

Kwon²

2019

Science and Technology of Advanced Materials

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Study of the Optical and Structural Properties of Silicon–Carbon Nanometric Powder Using Infrared Phase Modulated Ellipsometry and Electron Microscopy

Garcia-Caurel¹,

Viera²,

Bertrán³

et al. 1999

phys. stat. sol. (a)

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Hydrogenated amorphous silicon–carbon (a‐SiC : H) nanometric powder was produced in an rf plasma of SiH4 and CH4. Particle size, composition and powder yield were controlled by plasma modulation, SiH4/CH4 flow ratio and pressure of the gas mixture inside the plasma reactor. Quasi‐monodisperse silicon–carbon nanopowder, with a size of about 30 nm, was studied by infrared phase modulated ellipsometry (IRPME), scanning (SEM) and transmission (TEM) electron microscopy. The optical properties of the discontinuous powder layer deposited onto non‐insulating substrates were fitted to a three‐layer system. The use of non‐metallic substrates allowed us to identify the contributions of different vibrational groups to the Si–H stretching band. The structural parameters determined by ellipsometry agree with the size, morphology and substrate coverage of the nanoparticles measured by SEM and TEM.

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Synthesis, properties, and multifarious applications of SiC nanoparticles: A review

Wang

Dong

et al. 2022

Ceramics International

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Nanometric powder of stoichiometric silicon carbide produced in square-wave modulated RF glow discharges

Cited by 14 publications

References 12 publications

Preparation of cubic SiC from δ-Na₂Si₂O₅/carbon nanocomposite using cobalt catalyst

Preparation of cubic SiC from δ-Na₂Si₂O₅/carbon nanocomposite using cobalt catalyst

Study of the Optical and Structural Properties of Silicon–Carbon Nanometric Powder Using Infrared Phase Modulated Ellipsometry and Electron Microscopy

Synthesis, properties, and multifarious applications of SiC nanoparticles: A review

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Nanometric powder of stoichiometric silicon carbide produced in square-wave modulated RF glow discharges

Cited by 14 publications

References 12 publications

Preparation of cubic SiC from δ-Na2Si2O5/carbon nanocomposite using cobalt catalyst

Preparation of cubic SiC from δ-Na2Si2O5/carbon nanocomposite using cobalt catalyst

Study of the Optical and Structural Properties of Silicon–Carbon Nanometric Powder Using Infrared Phase Modulated Ellipsometry and Electron Microscopy

Synthesis, properties, and multifarious applications of SiC nanoparticles: A review

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Preparation of cubic SiC from δ-Na₂Si₂O₅/carbon nanocomposite using cobalt catalyst

Preparation of cubic SiC from δ-Na₂Si₂O₅/carbon nanocomposite using cobalt catalyst