Design of Zr-based AB2 type
hydrogen storage alloys
hydrogen storage alloys
(1. Institute of Nuclear Energy and Technology,
Tsinghua University, Beijing 102201, China;
2. School of Materials and Metallurgy,
Northeastern University, Shenyang 110004, China;
3. Institute of Metals Research,
Chinese Academy of Sciences, Shenyang 110015, China)
Tsinghua University, Beijing 102201, China;
2. School of Materials and Metallurgy,
Northeastern University, Shenyang 110004, China;
3. Institute of Metals Research,
Chinese Academy of Sciences, Shenyang 110015, China)
Abstract: The influences of the ratio of the radius of atom A(rA) to radius of atom B(rB), electronegativity and electron number were discussed on the Laves phase formation and the characteristics of Zr-based AB2 type hydrogen storage alloy. An enthalpy model of Zr-based AB2 alloy was obtained from known data and twelve Zr-based alloys were designed to test the model. The results show that the predicted values are in good agreement with the experimental values. The model can be used for predicting enthalpy values of Zr-based hydrogen storage alloys and settles a foundation for experiments.
Key words: Zr-based AB2 type hydrogen storage alloy; enthalpy model; design