Systematic over-estimation of lattice thermal conductivity in materials with electrically-resistive grain boundaries
Jimmy Jiahong Kuo, Max Wood, Tyler J. Slade, Mercouri G. Kanatzidis, G. Jeffrey Snyder
Abstract
The inverse trend between carrier mobility and lattice thermal conductivity is found to be an artifact of grain boundary electrical resistance. A two-phase transport model is required to properly account for the effect.
Topics & Concepts
Grain boundaryResistive touchscreenMaterials scienceLattice (music)Thermal conductivityCondensed matter physicsElectrical resistivity and conductivityThermal resistanceConductivityThermal conductionThermalComposite materialMicrostructureThermodynamicsChemistryPhysicsElectrical engineeringAcousticsEngineeringPhysical chemistryAdvanced Thermoelectric Materials and DevicesThermal properties of materialsMachine Learning in Materials Science