シラスの工業的利用に関する研究-7-シラス焼結体におよぼす添加物の影響

概要

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Effects of additional components on the color, physical properties and mechanical properties of the SHIRASU-kaolin sintered bodies were in vestigated. The partial amount of kaolin in SHIRASU-kaolin system is replaced with the portland cement, slaked lime, lithium carbonate or titanium oxide. These samples were sintered at 1000~1300℃ in the electric furnace. A sudden decrease in the water absorption and simultaneous increase in the density, bending strength and hardness occured at 1100 to 1200℃ for the sintered bodies of SHIRASU. At above 1200℃, most of these samples were melted. The properties of SHIRASU-kaolin-titanium oxide system (80 SHIRASU, 15 kaolin, 5 TiO_2) sintered at 1150 to 1200℃ are as follow； specific gravity 2.3~2.4, water absorption 0%, Mohr's hardness 6~7, bending strength 429~434Kg/cm^2.
鹿児島大学,カゴシマダイガク,Kagoshima Universityの論文