著者
園田 博男
出版者
無機マテリアル学会
雑誌
Journal of the Society of Inorganic Materials, Japan (ISSN:21854378)
巻号頁・発行日
vol.9, no.300, pp.261-266, 2002-09-01 (Released:2011-03-07)

無機マテリアル学会から通巻300号を記念して, 技術史的観点から「石灰」の製造ならびにその技術革新を回顧してもらいたいとの要請があった.日本石灰協会の諸先輩がこれまでに取りまとめた資料, 文献を参考にして, 紹介を試みる.石灰は日本に唯一豊富に賦存する鉱物資源であり, 環境に優しい21世紀に更なる役割が期待されている素材でもある.この拙稿が無機マテリアル学会の明日の技術発展に役立てば幸甚である.
著者
小林 敏勝
出版者
無機マテリアル学会
雑誌
Journal of the Society of Inorganic Materials, Japan (ISSN:21854378)
巻号頁・発行日
vol.11, no.313, pp.371-376, 2004-11-01 (Released:2011-03-07)
参考文献数
7
被引用文献数
1
著者
大門 啓志 呉 敏 杉田 智和 引地 康夫 松原 孝至 太田 敏孝 可児 良弘
出版者
無機マテリアル学会
雑誌
Journal of the Society of Inorganic Materials, Japan
巻号頁・発行日
vol.8, no.293, pp.283-288, 2001

A commercial hydroxyapatite, which has been regarded as a powder with low sinterability, was ground by four kinds of wet ball-milling in order to improve the sinterability. The effect of the grinding on the sinterability was investigated by comparing the four methods. When the powder was ground under water as a dispersion media, fine particles generated by the grinding cohere to reconstruct aggregates, then milling effects disappear. The fine particles without reconstructed aggregates can be obtained by ball-milling under ethyl alcohol as a dispersion media. The grinding efficiency can be improved by using balls with a high true density. The sizes of aggregates were diminished to 0.1-0.2μm by ball-milling using nylon coated iron balls. The powder ground by the nylon coated iron ball was formed into disks and then heated at 1200°C for 1 h. The bulk density of the sintered body was >98% of the theoretical density.