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

  • 제13권1호
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  • Pages.13-23
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  • 2002
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

교반관법에 의한 Mg 기지 수소저항합금의 대량제조와 반복적 수소화 반응에 따른 수소화 특성 및 열화특성 평가

Mass Production of Mg based Hydrogen Absorbing Alloys and Evalution of Hydrogenation and Degradation Properties by Hydriding/Dehydriding Cyclic Test

  • 발행 : 2002.03.30
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초록

Hydrogenation properties of Mg-Ni and Mg-Ti-Ni alloys were investigated by Pressure-Composition Isotherm (PCI) test. Those alloys were fabricated by a new alloying method, Rotation-Cylinder Method (RCM). The as-cast microstructure of Mg-10 mass% Ni alloy consists of an island-like hydride forming $\alpha$-Mg phase and the eutectic structure. After 350 cyclic tests, Mg-lO mass % Ni alloy was pulverized into fine particles of 100 nm. The fine particles, which have a large specific surface area, are highly reactive with hydrogen. However, extreme pulvehzation can separate Mg from $Mg_2Ni$ in the eutectic structure, so $Mg_2Ni$ of the eutectic structure cannot behave as a dissociated hydrogen supplier.

키워드

참고문헌

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