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액화 헬륨조건에서의 극저온 접착제 기계 물성 변화에 대한 연구 KCI 등재

Research for Change of Mechanical Properties of Cryogenic Adhesive in Liquified Helium Condition

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  • URLhttps://db.koreascholar.com/Article/Detail/412112
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한국기계기술학회지 (Journal of the Korean Society of Mechanical Technology)
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

In modern times, where problems due to environmental pollution are continuously occurring, hydrogen is in the spotlight as the energy of the future. Hydrogen is an eco-friendly energy resource that does not even generate CO2, and is actively supporting research to utilize hydrogen energy at the national level. This study is a study on the cryogenic mechanical properties of the elements constituting the cargo hold during the transportation of liquid hydrogen. Among the various components, the evaluation of mechanical properties of the cryogenic adhesive under liquid helium conditions was confirmed. The related contents are summarized as follows. As a result of performing SSRT by curing the adhesive, it was confirmed that tensile strength and maximum strain were increased at cryogenic temperature (-230°C) compared to room temperature (25°C). It was confirmed that the adhesive-hardened specimen showed a brittle fracture mode at both room temperature and cryogenic temperature during tensile. Improvements in this study, such as pores occurring during adhesive curing, the use of standard specimens, and experiments at -253°C, the boiling point of hydrogen, exist, and are planned to be carried out in subsequent studies.

저자
  • 표창민(한국생산기술연구원) | Chang-Min Pyo
  • 김성환(한국생산기술연구원) | Kim Sung-hwan
  • 김재웅(한국생산기술연구원) | Jaewoong Kim Corresponding Author