書誌事項
- タイトル別名
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- Formation Region of Cryptomelane with Different K-Ion Occupancy and Elutriation of K-Ion with Water
- cryptomelane ノ セイセイ リョウイキ ト カリウム ノ ヨウシュ
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Cryptomelanes [Kx(Mn3+, Mn4+)8O16(1.1≤x≤2.0)] with different occupancies (55% to 100%) of K-ion in the one-dimensional tunnels were synthesized by solid state reaction. The critical formation temperatures of cryptomelanes with low occupancy are lower than those with high occupancy. Cryptomelanes with low occupancy change to those with high occupancy accompanied with bixbyite (Mn2O3) during the heating. The deformation temperature measured by DTA is a function of the K-ion occupancy. A certain amount of K-ions of cryptomelane is elutriated quickly from the tunnels by water. The K-ion occupancy can be determined from the functional relationship between the deformation temperature and the K-ion occupancy, based on the deformation temperature measured by DTA.
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 101 (1170), 195-198, 1993
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390282680253814656
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- NII論文ID
- 110002287933
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL書誌ID
- 3810468
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可