The invention discloses a
nanosecond reversible phase transformation material and method for measuring a phase transformation mechanism of the same. The
nanosecond reversible phase transformation material has the property of generating
nanosecond reversible transformation under the single action of multiple external factors or combined action of the multiple external factors. The multiple external factors include
electric field, pressure and temperature; the nanosecond reversible transformation is reversible change between order distribution and disorder distribution of atoms, atom groups or molecules inside the nanosecond reversible phase transformation material so that the nanosecond reversible phase transformation material macroscopically presents a phase transformation process generated between a crystalline state and an amorphous state, the time spent by the phase transformation process is within 0.1-1000 nanoseconds, wherein the crystalline state of the material is of a lattice structure of a cubic
system; meanwhile, the material has a stable high-temperature
solid phase, a stoichiometric ratio of electric neutrality, P
orbit ionization degree of 0.02<r sigma'<0.31 and s-p
orbit hybridization degree of 1.6<rpi-1<2.5. The invention also provides a method for measuring the phase transformation mechanism by adopting experiment means, which can be applied to the explanation of the phase transformation mechanism of the material and prediction of the phase
transformation property of the material and design of a novel phase transformation material.