Electronic transport properties of the Al_0.5TiZrPdCuNi alloy in the high-entropy alloy and metallic glass forms.

ABSTRACT: High-entropy alloys (HEAs) are characterized by a simultaneous presence of a crystal lattice and an amorphous-type chemical (substitutional) disorder. In order to unravel the effect of crystal-glass duality on the electronic transport properties of HEAs, we performed a comparative study of the electronic transport coefficients of a 6-component alloy Al_0.5TiZrPdCuNi that can be prepared either as a HEA or as a metallic glass (MG) at the same chemical composition. The HEA and the MG states of the Al_0.5TiZrPdCuNi alloy both show large, negative-temperature-coefficient resistivity, positive thermopower, positive Hall coefficient and small thermal conductivity. The transport coefficients were reproduced analytically by the spectral conductivity model, using the Kubo-Greenw

SUBMITTER: Wencka M 

PROVIDER: S-EPMC8831620 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature