書誌事項
- タイトル別名
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- Synthesis of LaCrO<sub>3</sub> from Complex Precipitation and Its Electrical Conductivity
- サクタイ チンデンホウ ニ ヨル LaCrO3 ノ ゴウセイ ト ソノ デンキ
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A well-crystallized LaCrO3 powder with a primary particle size of about 1μm was synthesized through the complex precipitation process; obtaining the precipitate of complex hydroxide from an NaOH aqueous solution of Cr(NO3)3 by adding LaCl3 and then heating the precipitate up to 700°C. The LaCrO3 single-phased powder was prepared from the precipitate obtained by adding less amount of La3+ than the equimolar ratio, but an excess adding of La3+ resulted in La2CrO6 with LaCrO3. From density measurements and SEM observations, the powder thus prepared has no remarkable sinterability. However, the electrical conductivity (about 0.069S/cm) of the specimen, of which relative density was as low as 57%, was comparable with those reported on the dense specimens. The temperature dependence of conductivity of the present specimen showed a break around 180°C. The activation energy was determined as 0.20 and 0.23eV above and below 180°C, respectively.
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) 98 (1139), 675-678, 1990
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
- 1390282680255756416
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- NII論文ID
- 110002291962
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL書誌ID
- 3679991
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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