アルカリハライド系フラックスによるα-石英の結晶成長及びケイ酸リチウムの副生

概要

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The correlation between the formation of α-quartz and lithium silicate in NaBr-LiCl flux and NaBf lithium compound (other than LiCl) fluxes and the vitrification of the sample was studied. In NaBr-LiCl flux at the soaking temperature of 800℃, α-quartz formed in the non- vitrified powdery part in larger quantities than in the vitrified part, while the situation was reversed for lithium silicate. In non-vitrified powdery part in range of R_2 (silicagel/flux, molar ratio)≧0.10, only α-quartz crystals were formed. Use of NaBr-Li_6MO_7O_<24> flux inhibited the vitrification almost completely, α-quartz crystals being maximum 8.9 μm in length at R_1(NaBr/Li_6MO_7O_<24>, molar ratio) = 9.97/0.03, and the formation of lithium silicate was suppressed in NaBr-Li_3PO_4 flux.
社団法人日本セラミックス協会の論文
1988-07-01