Thermal Stress Characteristics of a Functionally Graded ZnO Element with High Energy Absorption Capability
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- Itoh Yoshiyasu
- Power & Industrial Systems Research & Development Center, Toshiba Corporation
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- Suzuki Hironori
- Power & Industrial Systems Research & Development Center, Toshiba Corporation
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- Andoh Hideyasu
- Power & Industrial Systems Research & Development Center, Toshiba Corporation
Bibliographic Information
- Other Title
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- 高エネルギー吸収特性を有する傾斜機能ZnO素子の熱応力特性
- コウエネルギー キュウシュウ トクセイ オ ユウスル ケイシャ キノウ ZnO ソシ ノ ネツ オウリョク トクセイ
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Abstract
The thermal stress characteristics of a zinc-oxide(ZnO) nonlinear element were studied in case of the ZnO element subjected to the partial heating during electrifying. The thermal stress analysis results indicate that the maximum thermal stress at the surface of the disk-shaped ZnO element was reduced when the edge of the element was heated. Moreover, it was made clear that the maximum thermal stress at the surface of the ZnO element was reduced by using a graded heating profile at the edge of the element.<BR>From the point of view of thermal stress reduction, a functionally graded zinc-oxide(ZnO) nonlinear element with a high surge energy absorption capability was developed for the first time in this study. Namely, graded electric-resistivity at the egde of the disk-shaped ZnO element could be realized by controlling the zinc-oxide grain growth. As a result, high surge energy absorption capability of the functionally graded ZnO element could be confirmed by comparing with a conventional ring heating type element.
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 63 (2), 160-166, 1999
The Japan Institute of Metals and Materials
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Keywords
Details 詳細情報について
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- CRID
- 1390001206490706944
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- NII Article ID
- 130007341340
- 10002548762
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 4659538
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed