Charge-Induced Disorder Controls the Thermal Conductivity of Entropy-Stabilized Oxides.

ABSTRACT: Manipulating a crystalline material's configurational entropy through the introduction of unique atomic species can produce novel materials with desirable mechanical and electrical properties. From a thermal transport perspective, large differences between elemental properties such as mass and interatomic force can reduce the rate at which phonons carry heat and thus reduce the thermal conductivity. Recent advances in materials synthesis are enabling the fabrication of entropy-stabilized ceramics, opening the door for understanding the implications of extreme disorder on thermal transport. Measuring the structural, mechanical, and thermal properties of single-crystal entropy-stabilized oxides, it is shown that local ionic charge disorder can effectively reduce thermal conductivity without

SUBMITTER: Braun JL 

PROVIDER: S-EPMC9486463 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature