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AssigneesKyungpook National University Industry-Academic Cooperation Foundation, Korea Advanced Institute of Science and Technology
InventorsSeong Hoon Yi, Gi Tae Park, Seong Tae Kim, Pyuck Pa Choi, Chan Won Jung
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Disclosed is a method for producing a Heusler-based phase thermoelectric material using an amorphous phase precursor. More specifically disclosed is a method for producing a powder or bulk thermoelectric material having a microstructure including a Heusler-based phase with a thermoelectric effect by crystallization of an amorphous phase precursor prepared by a non-equilibrium processes. Also disclosed is a device using a Heusler-based phase thermoelectric material produced by the method. The method largely avoids the efficiency problems of conventional methods, including low productivity in scaling up caused by long annealing time, high annealing temperature, and contamination during nanopowder production, achieving improved process efficiency. In addition, the method enables efficient production of a thermoelectric material having a nano-sized microstructure that is difficult to produce by a conventional method.
A method for producing a Heusler-based phase thermoelectric material, comprising forming an amorphous matrix phase from a liquid phase or a solid phase or a gas phase or a fourth phase and applying thermal energy, mechanical energy or physical energy into the amorphous matrix phase to form thermoelectric phase wherein the thermoelectric phase is represented by Formula 1:
A method for producing a Heusler-based phase thermoelectric material, comprising forming an amorphous matrix phase from a liquid phase or a solid phase or a gas phase or a fourth phase and applying thermal energy, mechanical energy or physical energy into the amorphous matrix phase to form thermoelectric phase wherein the thermoelectric phase is represented by Formula 1:
A method for producing a Heusler-based phase thermoelectric material, comprising forming an amorphous matrix phase from a liquid phase or a solid phase or a gas phase or a fourth phase and applying thermal energy, mechanical energy or physical energy into the amorphous matrix phase to form thermoelectric phase wherein the thermoelectric phase is represented by Formula 1 consisting of X, Y, Z, and W:
Dependencies are inferred from the claim text.