WEKO3
アイテム
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Nb_2O_5-CaO 系の固相反応
http://hdl.handle.net/10191/7489
http://hdl.handle.net/10191/74895a0330b5-968c-4d1b-933b-d5db2753c77b
名前 / ファイル | ライセンス | アクション |
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110002316354.pdf (670.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-04-08 | |||||
タイトル | ||||||
タイトル | Nb_2O_5-CaO 系の固相反応 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Nb_2O_5-CaO 系の固相反応 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Niobium pentoxide (Nb_2O_5) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Calcium oxide (CaO) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | solid state reaction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Reaction layer | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | One-way diffusion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Interface | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
その他のタイトル | ||||||
その他のタイトル | Solid State Reaction between Nb_2O_5 and CaO | |||||
著者 |
堀田, 憲康
× 堀田, 憲康× 長谷川, 実× 前田, 博之× 松尾, 重友 |
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著者別名 | ||||||
識別子 | 47999 | |||||
識別子Scheme | WEKO | |||||
姓名 | Hotta, Noriyasu | |||||
著者別名 | ||||||
識別子 | 48000 | |||||
識別子Scheme | WEKO | |||||
姓名 | Hasegawa, Minoru | |||||
著者別名 | ||||||
識別子 | 48001 | |||||
識別子Scheme | WEKO | |||||
姓名 | Maeda, Hiroyuki | |||||
著者別名 | ||||||
識別子 | 48002 | |||||
識別子Scheme | WEKO | |||||
姓名 | Matsuo, Shigetomo | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Nb_2O_5 焼結体と CaO 焼結体とを重ね合わせて拡散対とし,Arガスふん囲気中1150°〜1300℃で加熱してNb_2O_5-CaO系固相反応を調べた.生成する反応層を電子顕微鏡観察,X線マイクロアナライザー分析,X線回折及び熱膨張測定し,次のような結果を得た.Nb_2O_5層とCaO層の境界面において,1150℃と1200℃の温度でCaO・Nb_2O_5,2CaO・Nb_2O_5,立方晶3CaO・Nb_2O_5と斜方晶系化合物2相共存する層,計3種類の反応層が生成し,1250℃と1300℃の温度でCaO・Nb_2O,2CaO・Nb_2O_5,立方晶3CaO・Nb_2O_5,立方晶3CaO・Nb_2O_5と斜方晶系化合物2相共存する層,計4種類の反応層が生成した.これらはNb_2O_5中へのCaOの一方拡散により生じた.生成した反応層の幅の大きさは,2相共存層>3CaO・Nb_2O_5>2CaO・Nb_2O_5>CaO・Nb_2O_5,の順であった.この斜方晶系化合物は4CaO・Nb_2O_5よりもCaO成分か多い組成を有していると考えられた.また1150°〜1300℃の温度ではこの斜方晶系化合物よりもCaO成分の多い化合物は存在しなかった. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Solid state reactions between sintered Nb205 and CaO have been studied in Ar at the temperature range from 1150℃ to 1300℃. The reaction layers formed at the Nb_2O_5-CaO interface were examined by using electron microscopy, EPMA, X-ray diffraction and dilatometry. The following results were obtained. At 1150℃ and 1200℃, three layers (CaO・Nb_2O_5・2CaO・Nb_2O_5 and a phase mixture of cubic 3 CaO・Nb_2O_5 and orthorhombic compound) and at 1250℃ and 1300℃, four layers (CaO・Nb_2O_5・2 CaO・Nb_2O_5 cubic 3 CaO・Nb_2O_5 and a phase mixture of cubic 3 CaO・Nb_2O_5 and orthorhombic compound) were formed. These results indicated that the one-way diffusion of CaO into Nb_2O_5 occurred. The order in width of the reaction layer was the phase mixture, cubic 3 CaO・Nb_2O_5, 2 CaO・Nb_2O_5 and CaO・Nb_2O_5. The orthorhombic compound was richer in CaO content than 4 CaO・Nb_O_5. No compound richer in CaO content than orthorhombic compound was found in the temperature range ll50℃ to 1300℃. | |||||
書誌情報 |
窯業協會誌 en : 窯業協會誌 巻 89, 号 1, p. 1-5, 発行日 1981-01 |
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出版者 | ||||||
出版者 | 窯業協会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00090255 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00245650 | |||||
権利 | ||||||
権利情報 | 日本セラミックス協会 | |||||
権利 | ||||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
著者版フラグ | ||||||
値 | publisher | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110002316354 |