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Sintering Curve Inflection in Densification of Fine CeO_2 Powders at High Temperature
https://nitech.repo.nii.ac.jp/records/5195
https://nitech.repo.nii.ac.jp/records/519509681ba0-0734-4991-b6d2-bc2f0214fc21
名前 / ファイル | ライセンス | アクション |
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本文_fulltext (879.8 kB)
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(c) 2004 The Ceramic Society of Japan
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-11-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Sintering Curve Inflection in Densification of Fine CeO_2 Powders at High Temperature | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | CeO_2微粒子の緻密化における焼結曲線の屈曲 | |||||
著者 |
Ozawa, Masakuni
× Ozawa, Masakuni |
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著者別名 | ||||||
姓名 | 小澤, 正邦 | |||||
書誌情報 |
Journal of the Ceramic Society of Japan 巻 112, 号 1306, p. 321-326, 発行日 2004-06-01 |
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出版者 | ||||||
出版者 | The Ceramic Society of Japan | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09145400 | |||||
書誌レコードID(NCID) | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10040326 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.2109/jcersj.112.321 | |||||
関連名称 | 10.2109/jcersj.112.321 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | The sintering behavior of fine cerium dioxide (CeO_2) powders from direct homogeneous precipitation using hexamethylenetetramine was examined by monitoring the continuous shrinkage of powder compacts during heating from 30 to 1700℃. Depending on the pre-heat-treatment condition of powders, the sintering curves of two starting powder compacts showed different shrinkage behavior. A powder heated at 650℃ showed a normal sintering curve (S-type) with the highest shrinkage rate at around 1000℃. However, a powder heated at 350℃ showed an extremely high shrinkage rate with inflection points in the sintering curve at 1300-1500℃. We analyzed the microstructure, pore structure and the secondary particle size of sintered bodies after sintering curve inflection. Grains 0.08 μm in size were roughly packed one another in the microstructure at 900℃ after local sintering in the interior part of aggregated particles. The rapid shrinkage after rearrangement started at higher temperatures of 1300-1500℃, inducing large grain growth. The combination of rapid rearrangement and grain growth, which resulted in a sintering curve inflection, was assumed at temperatures as high as 900-1500℃. | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf |