シラスの工業的利用に関する研究-22-鹿児島県吉田町産シラスの性質とメカノケミストリ-

概要

論文の詳細を見る
Chemical analysis, particle size analysis, X-ray powder diffraction test (XRD), differential thermal analysis (DTA), thermal gravimetric analysis (TGA), infra-red absorption spectroscopy (IR) and electron microscopy were all used to examine Shirasu from Yoshida-cho, Kagoshima Prefecture (namely Yoshida Shirasu). The results indicated that Yoshida Shirasu is mainly composed of volcanic glass having sharpened edges and sponge-like particles (mean particle size of 1.3 μm). The chemical composition of the Shirasu is 5.22-6.83% Ig.loss, 69.41-70.00% SiO_2, 13.24-13.44% Al_2O_3, 1.58-1.82% Fe_2O_3, 1.32-1.44% CaO, 0.65-0.72% MgO, 3.57-5.36% Na_20, 3.67-5.26% K_2O. Moreover, the mechanochemical properties of ground Shirasu were investigated by reading the change in particle size, adsorption of dye, IR, and XRD.