Nitriding Powders in the System SiO2 -- Al2O3 -- C

Nitriding Powders in the System SiO2 -- Al2O3 -- C

Chemical and x-ray analysis methods are used to study features of carbothermal reduction and simultaneous nitriding of a powder mixture of crystalline SiO^sub 2^ (α-quartz) and amorphous SiO^sub 2^ (Aerosil). It is established that the use of amorphous SiO^sub 2^ leads to accelerated formation of Si...

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Veröffentlicht in:Powder metallurgy and metal ceramics 2001-09, Vol.40 (9-10), p.441-446
1. Verfasser: Kurdyumov, Alexander V
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum nitride
Aluminum oxide
Crystal structure
Nitriding
Phases
Silicon carbide
Silicon dioxide
Solid solutions
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Zusammenfassung:Chemical and x-ray analysis methods are used to study features of carbothermal reduction and simultaneous nitriding of a powder mixture of crystalline SiO^sub 2^ (α-quartz) and amorphous SiO^sub 2^ (Aerosil). It is established that the use of amorphous SiO^sub 2^ leads to accelerated formation of SiC and a shift in the direction of nitriding towards AlN formation. It is also shown that both phases are the solid solutions SiC -- AlN and AlN -- SiC.[PUBLICATION ABSTRACT]
ISSN:1068-1302
1573-9066
DOI:10.1023/A:1014324520228