@article{oai:ir.kagoshima-u.ac.jp:00007613,
 author = {島田, 欣二 and SHIMADA, Kinji and 福重, 安雄 and FUKUSHIGE, Yasuo},
 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 = {Six species of Shirasu distributed in southern Kyushu were classified on the basis of grain size into five grades. They were kept at 900~1050°C for about 3~20 minutes in the electric furnace and cooled rapidly to room temperature. The glass microballoon particles were separated from them by pouring into water. Optimum production conditions of the glass microballoon particles from Shirasu were as fbllow; grain size of the raw material: 150~200μm, firing temperature: 950~1000°C, keeping time: about 3 minutes. The X-ray diffraction patterns of these glass microballoon particles are very broad diffraction band, suggesting that they are the glass structure. The glass microballoon particles from Shirasu appears a single sphere or an agglomerate consisting of several spheres.},
 pages = {51--60},
 title = {シラスの工業的利用に関する研究 (第10報) : シラスを原料とする微細中空ガラス球の試作},
 volume = {13},
 year = {1971}
}