한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제14권3호
  • /
  • Pages.207-216
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  • 2003
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

수소저장-방출싸이클링에 의한 수소저장금속의 변형거동에 관한 형상 및 가공의 영향

Effect of Geometrical Shape and Cold Work on Deformation of the Hydrogen Absorption Metal with Hydrogen Absorption-Desorption Cycling

  • 정영관 (국립금오공과대학교 기계공학부)
  • Jeong, Y.G. (School of Mechanical Eng., Kumoh National University of Technology)
  • 발행 : 2003.09.15
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초록

By using the electrochemical method, the relation between the deformation and the geometrical shape, and the effect of cold work on hydrogen absorption-desorption cycling in palladium were investigated, In order to study this problem, four kinds of the Pd specimens used were plates and bars as cold worked and annealed states. As results, it is found that the deformation of thickness direction in the palladium plates increased whereas other lateral directions decreased. But the palladium bars showed the same deformation ratio in all directions because of uniform distribution of the $\beta$ phase. Grains in the plate specimens were greatly deformed after hydrogenation cycling whereas grains in the bar specimens were pulverized. Also, deterioration of the hydrogen absorption rate of the bar specimen was larger than the plate specimen. And the effect of cold work on hydrogen absorption capacity was relatively small.

키워드

과제정보

연구 과제 주관 기관 : 금오공과대학교

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