SYNTHESIS OF Ca-ALPHA SIALON USING ZEOLITE AS A RAW MATERIAL

SYNTHESIS OF Ca-ALPHA SIALON USING ZEOLITE AS A RAW MATERIAL

Ca-alpha SiAlON powders were synthesised by carbothermal reduction nitridation of zeolite (Ca-zeolite Y). The Ca-zeolite Y was converted into an amorphous phase below 1100 C, and then into Ca-alpha SiAlON via mullite, Si2N2O and (Ca,Si,Al)xOy liquid at 1450 C. In converting zeolite into Ca-alpha SiA...

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Veröffentlicht in:Nihon Seramikkusu Kyōkai gakujutsu ronbunshi 2007-01, Vol.115 (4), p.294-296
Hauptverfasser: Wakihara, T, Kamiwaki, S, Tatami, J, Komeya, K, Meguro, T
Format: Artikel
Sprache:eng
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Zusammenfassung:Ca-alpha SiAlON powders were synthesised by carbothermal reduction nitridation of zeolite (Ca-zeolite Y). The Ca-zeolite Y was converted into an amorphous phase below 1100 C, and then into Ca-alpha SiAlON via mullite, Si2N2O and (Ca,Si,Al)xOy liquid at 1450 C. In converting zeolite into Ca-alpha SiAlON, it was found that Ca-alpha SiAlON particles were of a similar size to that of the raw material, indicating that it is possible to control the particle size of Ca-alpha SiAlON using zeolite as a raw material. 20 refs.
ISSN:0914-5400