Anisotropy of electrical resistivity and thermal expansion of single-crystal Ti₅Si₃

Abstract

The anisotropies of electrical resistivity and thermal expansion of single-crystal Ti₅Si₃ have been measured in the temperature ranges 4·2–300K and 300–1273 K respectively. The anisotropy of the thermal component of the resistivity, defined as ρ(273 K)—p(4·2 K), was found to be 1·65 and the anisotropy of the thermal expansion 2·7 at 1273 K. The anisotropies are discussed on the basis of the directionality of the bonding forces.