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フルテキストURLKJ00000155917.pdf ( 2.0MB ) 公開日 2010-04-19
タイトルキューバ鉱の転移に関する熱的研究
タイトルヨミキューバ コウ ノ テンイ ニ カンスル ネツテキ ケンキュウ
タイトル別表記Thermal Study on the Inversion of Cubanite
作成者苣木, 浅彦
作成者ヨミスガキ, アサヒコ
作成者別表記Sugaki, Asahiko
作成者所属山口大学工学部
内容記述(抄録等)The orthorhombic and cubic inversion of cubanite from the Omine and Komori mines, Japan has been investigated. By heating at 222℃ for 72 hours and at 227℃ for 28 hours isotropic cubanite appears as a lamellar form in original anisotropic cubanite as shown in Fig.1 C and D. At 228℃ for 72 hours original cubanite mostly becomes to isotropic, but a small amount of anisotropic cubanite locally remains as polysynthetic twin-like form (Fig. 1 E and F), and at 233℃ for 70 hours the cubanite entirely transforms to the isotropic high-temperature form (Table 2). The inversion of cubanite has been also studied by means of X-ray powder diffraction and differential thermal analysis. The powder diffraction data are given in Tables 3 and 4. The thermal change of the powder pattern of X-ray diffraction is shown in Fig.2. From these results, it is found that orthorhombic cubanite from the Komori mine changes to cubic type at 235℃ for 24 hours and the both cubanites coexist at 230℃ for 24 hours. The inversion is also seen as a distinct endothermic peak beginning at 254°±3℃ in the differential thermal curves as shown in Fig.3. The reverse transformation from cubic to orthorhombic form has been very difficult because the reaction of the inversion is sluggish. By annealing at 200℃ for 65 days there was not observed the formation of orthorhombic cubanite from the cubic form.
本文言語jpn
主題材料工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0372-7661
NCIDAN00244228
学内刊行物(紀要等)山口大学工学部研究報告
掲載誌名山口大学工学部研究報告
掲載誌名別表記Memoirs of the Faculty of Engineering, Yamaguchi University
22
3
開始ページ263
終了ページ272
発行日1972
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00000155917
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00000155917