Abstract
A procedure to simultaneously estimate thermal diffusivity and thermal conductivity is improved by employing a revised inverse solution, in which the time at which this method starts being applied is independently chosen for the measured temperature to satisfy a required temperature change. As the result, the procedure becomes easier and more convenient than the previous one. The estimations of thermal diffusivity and conductivity are made for a particle of metal-hydrogen. The estimation shows that the thermal diffusivity, a, is almost constant value of 4.0×(10)^<-7> m/s^2 in a range of 10 to 30℃ and of 0.148 to 0.502 MPa, while the thermal conductivity linearly increases from 1.0 to 3.0W/(mK) for the different temperature with the pressure and the composition rate.
