Large mass field fluctuation and lattice anharmonicity effects promote thermoelectric and mechanical performances in NbFeSb half-Heusler alloys <i>via</i> Ti/Zr/Hf stepwise doping
Chang‐Heng Tan, Hongxiang Wang, Hongxiang Wang, Lingwen Zhao, Yuqing Sun, Jie Yao, Jinze Zhai, Chunlei Wang, Hongchao Wang, Hongchao Wang
Abstract
Thermoelectric materials require not only high performance to maximize the energy-conversion efficiency but also good mechanical properties to guarantee machinability and reliable operation.
Topics & Concepts
Materials scienceAnharmonicityMachinabilityThermoelectric effectDopingCondensed matter physicsThermoelectric materialsLattice (music)Effective mass (spring–mass system)MetallurgyOptoelectronicsComposite materialThermodynamicsPhysicsMachiningAcousticsThermal conductivityQuantum mechanicsAdvanced Thermoelectric Materials and DevicesHeusler alloys: electronic and magnetic propertiesChalcogenide Semiconductor Thin Films