title: Discovery of spontaneous deformation of Pd metal during hydrogen absorption/desorption cycles.
abstract: A drastic deformation was observed in Pd metal of various shapes after hydrogen absorption and desorption cycles at 150 degrees C at a gas pressure of 1-5 MPa. All of the phenomena observed indicate that some strong internal force is induced spontaneously during hydrogen absorption/desorption cycles to produce a collective deformation so as to minimize the surface.
authors.affiliation: RIKEN, Nishina Center, Wako, Saitama, Japan. yamazaki@nucl.phys.s.u-tokyo.ac.jp
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Yamazaki
authors.forename: Masaharu
authors.initials: M
authors.lastname: Sato
authors.forename: Satoshi
authors.initials: S
authors.lastname: Itoh