The migration of both isotopes towards the cold end of samples occurred. The heat of transport was greater for D than for H (table 97). The degree of thermotransport decreased with increasing temperature.

Thermotransport of Hydrogen and Deuterium in Vanadium, Niobium, and Tantalum. D.T.Peterson, M.F.Smith: Metallurgical Transactions A, 1982, 13[5], 821-5