書誌事項
- タイトル別名
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- A Visualizing Study of Blister Fracture in Rubber O-rings
- ゴム Oリング ノ ブリスタ ハカイ ノ カシカ ヒョウカ
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In order to establish a hydrogen energy system, the reliability of sealing rubber for high-pressure hydrogen has been required. The rubber O-ring for hydrogen energy system is used with pressurized-decompress cycle of high-pressure hydrogen. It causes internal cracks referred as blister fracture. Degradation of seal performance originated from blister fracture is one of the important issues to improve the reliability. This study focused on the blister initiation behavior and the effect of materials, gas species and decompression rate on blister fracture in terms of visualizing O-ring behavior under high-pressure gas. For the visualizing evaluation, a transparent ethylene-propylene rubber (EPDM) and vinyl-methyl silicone rubber (VMQ) O-rings were molded, and a special viewable high-pressure vessel with a glass viewport was developed. The O-ring specimens were exposed to high-pressure hydrogen, helium, and nitrogen at 10 MPa until gas solubility content in O-ring was saturated; afterwards, these gases were decompressed with some rate. It was obviously visualized that the blister fracture did not occur in VMQ O-ring but occurred in EPDM. The blister fracture of the EPDM O-ring in nitrogen was the most serious in the tested gases. These blister behaviors are considered to be related to gas diffusivity of hydrogen, helium and nitrogen.
収録刊行物
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- 日本ゴム協会誌
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日本ゴム協会誌 85 (5), 162-167, 2012
一般社団法人 日本ゴム協会
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詳細情報 詳細情報について
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- CRID
- 1390001206561740032
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- NII論文ID
- 10030320004
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- NII書誌ID
- AN00269207
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- COI
- 1:CAS:528:DC%2BC38Xhtl2ht7vO
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- ISSN
- 18840442
- 0029022X
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- NDL書誌ID
- 023632247
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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
- NDL
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- 抄録ライセンスフラグ
- 使用不可