@article{oai:repo.qst.go.jp:00048460, author = {Noritake, Tatsuo and Aoki, Masakazu and Towata, Shin-ichi and Machida, Akihiko and Watanuki, Tetsu and 町田 晃彦 and 綿貫 徹}, issue = {26}, journal = {International Journal of Hydrogen Energy}, month = {Jun}, note = {The structural changes in the hydrogenation and dehydrogenation reaction process on Ti0.8Zr0.2Mn1.5 alloy have been investigated by the in-situ synchrotron radiation X-ray diffraction experiments to elucidate the mechanism of hysteresis phenomena in equilibrium hydrogen pressure.The lattice constant and unitcell volume of both hydrogen solid solution phase and hydride phase in the dehydrogenation pricess are smaller than those in hydrogenation process despite of lower equilibrium pressure. This result is opposite to the general relation between the lattice volume and pressure. The hysteresis behavior also exhibits in the diffraction peak width. The hysteresis behavior may be related to lattice difects and hydrogen concentration.}, pages = {16667--16674}, title = {Hysteresis phenomena on the crystal lattice of Ti0.8Zr0.2Mn1.5 in the hydrogenation and dehydrogenation process}, volume = {42}, year = {2017} }