Electrical Conductivity of Ceria-based Oxide under 24 GHz Millimeter-wave Heating in Varying Thermal Environments
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- CHE ABDULLAH Salmie Suhana Binti
- Graduate School of Natural Science and Technology, Okayama University School of Materials Engineering, University Malaysia Perlis
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- TERANISHI Takashi
- Graduate School of Natural Science and Technology, Okayama University
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- HAYASHI Hidetaka
- Graduate School of Natural Science and Technology, Okayama University
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- KISHIMOTO Akira
- Graduate School of Natural Science and Technology, Okayama University
抄録
<p>Sm-doped CeO2 ceramics were prepared by conventional solid state method. The electrical conductivity of the samples was measured under conventional heating and 24 GHz millimeter-wave (MMW) heating, and the results were compared. During MMW heating, 5 mol% Sm-doped CeO2 pellets with different thickness were used as susceptors, meanwhile Al2O3 fiber board was used as thermal insulator and its design varies by the number of open channels. The aforementioned susceptors and thermal insulators dependency of conductivity values during MMW heating were studied. Conductivity of samples under MMW heating was found to be higher than under conventional heating. Results showed that the different susceptor thickness and thermal insulator design could result in different conductivity values. These results were attributed to the phenomenon of heat dissipation from surface and the amount of direct radiation reached the sample. Specific susceptor thickness and specific insulator design which leads to highest conductivity were identified. By combining these two effects, the largest enhancement of conductivity of ceria based ceramics was obtained.</p>
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 63 (7), 663-667, 2016
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390282681288790144
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- NII論文ID
- 130005164617
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- ISSN
- 18809014
- 05328799
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可