抄録
Offer Organization: Japan Society for the Promotion of Science, System Name: Grants-in-Aid for Scientific Research, Category: Grant-in-Aid for Scientific Research (S), Fund Type: -, Overall Grant Amount: - (direct: 140000000, indirect: 42000000)
In shape-change materials such as shape memory alloys and piezoelectric materials used for medical and energy applications, external fields such as force and magnetic field and material functions are deeply related each other。 The origin of the shape change is the domain rearrangement and phase transformation due to the motion of domain homo interface. In order to improve the material functions, the structure and dynamics of the domain homo interface have been clarified for the smooth motion with low friction. Principles for the control of interface structure and lattice softening from the first principle calculations have been established to reduce the friction of motion for the enhancement of higher functionality. Moreover, several multifunctional and high performance new shape change materials have been developed.