Thermal transpiration correction of hydrogen equilibrium pressure measurements in metal/hydrogen solution

Abstract

Experimentally determined results on the measurement of hydrogen equilibrium pressure as a function of hydrogen concentration and temperature in α-titanium have been corrected for thermal transpiration effects in the apparatus. An empirical relationship, which accurately describes the transitional thermal transpiration region over which the effect is diminishing in magnitude with increasing hydrogen pressure, has been developed. This relationship is both simpler in form and more convenient in application than earlier derived correction factors.