@article{oai:ir.kagoshima-u.ac.jp:00010714,
 author = {島田, 欣二 and SHIMADA, Kinji and 福重, 安雄 and FUKUSHIGE, Yasuo and 井田, 重信 and IDA, Shigenobu},
 journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University},
 month = {Sep},
 note = {Xonotlite was synthesized under various conditions from amorphous siliceous rocks produced at Makizono (Kagoshima Pre.), Beppu (Oita Pre.), and Iojima (Kagoshima Pre.) which had some connection with volcanic action. The rocks of Makizono and Beppu consisted of amorphous silica and siliceous rock of Iojima are consisted essentially of amorphous silica but accompanied with cristobalite, tridymite and chalcedony.
The mixture of the rocks ground, lime and water was stirred and treated hydrothermally in an autoclave under the following conditions ; molar ratio of CaO/SiO_2 1.0～1.2, weight ratio of water/total-solid 5, pressure 10～30 kg/cm^2, temperature 180～234°C, during for 5～10 hrs. It was found that the best conditions for synthesis of xonotlite in this experiment was as follows ; molar ratio of CaO/SiO_2 1.0～1.2, pressure 30 kg/cm^2, temperature 234°C, for 10 hrs. The crystals obtained were composed essentially of xonotlite and accompanied with small amount of tobermorite. The spherical aggregates of needle-like xonotlite was observed.
The addition of small amount of xonotlite to the starting raw material promoted the synthesis of xonotlite. The siliceous rock of Iojima was better material for the synthesis of xonotlite than the others investigated.},
 pages = {127--135},
 title = {火山作用と関係ある無定形珪酸の性質とその応用的研究 －第32報 ゾノトライトの合成－},
 volume = {21},
 year = {1979}
}