Microwave synthesis of phase-pure, fine silicon carbide powder

Satapathy, L. N.; Ramesh, P.; Agrawal, Dinesh Kumar; Roy, Rustum

doi:10.1016/j.materresbull.2005.04.034

Cited by 78 publications

(32 citation statements)

References 16 publications

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“…Coincidentally, Satapathy et al [20] also reported the casual formation of SiC nanorods by the reaction of silicon powder with amorphous carbon below 1400 °C, but no likely interpretation was given.…”

Section: Introductionmentioning

confidence: 99%

The effect of pitch-based carbon fiber microstructure and composition on the formation and growth of SiC whiskers via reaction of such fibers with silicon sources

Zhu

Han

et al. 2016

Carbon

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Section: Introductionmentioning

confidence: 99%

The effect of pitch-based carbon fiber microstructure and composition on the formation and growth of SiC whiskers via reaction of such fibers with silicon sources

Zhu

Han

et al. 2016

Carbon

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“…Previous studies suggested the significant effect of heating duration on the synthesis of SiC nanomaterials (Ding et al 2014;Moshtaghioun et al 2012). For example, Satapathy et al (2005) studied the effect of heating duration of microwave heating (1 to 30 min) on the synthesis of SiC powder and they found that 30 min at temperature of 1300°C was sufficient to synthesize pure phase SiC powder. Ebadzadeh and Marzban-Rad (2009) also suggested that heating time at 40 min at 1450°C was sufficient to synthesize single-phase SiC nano-powder by using microwave hybrid heating.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heating Duration on the Synthesis of Silicon Carbide Nanotubes by Microwave Heating of MWCNTs and Silica

Voo¹,

Voon²,

Lee³

et al. 2017

JSM

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“…The only noticeable changes are the practically complete absence of silicon in the products of synthesis at all silica concentrations as well as a small intensification of the formation of aluminum carbide, which is due to the higher degree of completion of the carbide-forming reactions (5), (7), and (9).…”

mentioning

confidence: 98%

“…The synthesis of silicon carbide by SHS from mixtures containing silicon and carbon powder has been studied in a number of works, but because of the low exothermicity of the reaction the synthesis process was conducted with microwave irradiation or by passing an electric current [8,9]. When SHS is conducted in mixtures of silicon and carbon oxides and metallic aluminum it is found that silicon-carbide refractory materials form in a composition with high-melting corundum and mullite phases [10,11].…”

mentioning

confidence: 99%

Phase- and structure-formation processes during self-propagating high-temperature synthesis in the system Al – MgCO3 – SiO2 – C

Podbolotov

Dyatlova

2009

Glass Ceram

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Phase and structure formation processes occurring in the system Al -MgCO 3 -SiO 2 in the course of selfpropagating high-temperature synthesis are examined. The dependences of the structure and the phase composition of the composite materials formed on the ratio of the initial components are determined. It is shown that self-propagating high-temperature synthesis can be used to produce ceramic composite materials based on the spinel and silicon carbide phases.An effective method of obtaining composite materials is self-propagating high-temperature synthesis (SHS). SHS technology is a powder technology but it differs fundamentally from other powder technologies used in metallurgy by the fact that to realize synthesis powders are combusted and not heated in high-temperature facilities. The synthesis process proceeds by means of its own release of heat as a result of the interaction between the components of the initial mixture with valuable condensed products being formed, which makes it possible to decrease costs and reduce the energy consumption for production and, therefore, decrease prime costs [1]. Phase formation in the process of combustion of powdered mixtures occurs directly in the reaction volume, and the crystalline compounds formed grow into particles of other compounds. In the process it becomes possible to obtain composite crystalline phases, which is difficult to do under ordinary conditions. An example is a composition consisting of spinel and silicon carbide.Aluminomagnesia spinel MgO × Al 2 O 3 is a ceramic material with adequate mechanical strength and good corrosion and radiation resistance; it is widely used in metallurgy, machine building, instrument building, the chemical industry as linings for inductors and electric resistance furnaces, filters for melts, high-temperature electric insulators, and articles for other purposes. Spinel ceramic finds wide applications in the manufacture of protective cases for thermocouples and crucibles for melting metals. Aluminomagnesia spinel is also a promising refractory material, used in heating equipment in its own form and with the addition of magnesia refractories during fabrication [2,3].The kinetic difficulties in the synthesis of spinel via the reaction MgO + Al 2 O 3 = MgAl 2 O 4 make it necessary to perform the process at high temperatures [4,5].It is possible to produce spinel, while lowering energy consumption, from abundant raw materials by means of SHS in mixtures which include a magnesium-containing component and metallic aluminum [6,7].Together with spinel, silicon carbide based materials are a promising group. Since it is difficult to produce a strong, formed, article from pure silicon carbide, refractory articles with a high content of carbide are produced using various binders. Silicon carbide refractory materials and articles based on them possess a comparatively high electric and thermal conductivity, heat resistance, and durability under abrasion. They are not wetted by metal melts, possess high mechanical strength in the cold and heate...

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Microwave synthesis of phase-pure, fine silicon carbide powder

Cited by 78 publications

References 16 publications

The effect of pitch-based carbon fiber microstructure and composition on the formation and growth of SiC whiskers via reaction of such fibers with silicon sources

The effect of pitch-based carbon fiber microstructure and composition on the formation and growth of SiC whiskers via reaction of such fibers with silicon sources

Effect of Heating Duration on the Synthesis of Silicon Carbide Nanotubes by Microwave Heating of MWCNTs and Silica

Phase- and structure-formation processes during self-propagating high-temperature synthesis in the system Al – MgCO3 – SiO2 – C

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