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    • 6. 发明申请
    • METHOD FOR MANUFACTURING NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL
    • 制备纳米复合材料热电转换材料的方法
    • US20160107239A1
    • 2016-04-21
    • US14652306
    • 2014-06-16
    • TOYOTA JIDOSHA KABUSHIKI KAISHAADMATECHS COMPANY LIMITED
    • Junya MURAITomonari KOGUREYoichiro KAWAIYoshinori OKAWAUCHI
    • B22F9/24B22F3/10
    • B22F9/24B22F3/10B22F3/105B22F2009/245B22F2301/052B22F2301/205B22F2301/30B22F2302/25B22F2302/253B22F2302/256B22F2302/45B22F2304/05B22F2998/10B82Y30/00B82Y40/00C22C32/0015H01L35/18H01L35/26H01L35/34C22C1/05
    • This invention provides a method for manufacturing a nanocomposite thermoelectric conversion material in which phonon-scattering particles having a specific shape are dispersed, reducing thermal conductivity and increasing thermoelectric conversion performance. Said method for manufacturing a nanocomposite thermoelectric conversion material, in which oxide phonon-scattering particles are dispersed within the matrix of a thermoelectric conversion material, is characterized by including the following stages: a first stage in which, in a solution, the reduction of a salt is used to precipitate out/grow nanoparticles consisting of elements constituting a thermoelectric conversion material, the polymerization of a precursor is used to precipitate out/grow nanoparticles consisting of an oxide constituting phonon-scattering particles, and a mixture of said nanoparticles is collected; and a second stage in which a hydrothermal treatment is used to alloy said mixture into composite nanoparticles, which are then sintered. This method for manufacturing a nanocomposite thermoelectric conversion material is also characterized in that in the aforementioned first stage, nanoparticles consisting of a first group of elements that constitute the thermoelectric conversion material are precipitated out or grown before nanoparticles consisting of oxides of a second group of elements that constitute the phonon-scattering particles.
    • 本发明提供了一种纳米复合热电转换材料的制造方法,其中具有特定形状的声子散射颗粒被分散,降低热导率和增加热电转换性能。 所述制造其中氧化物声子散射粒子分散在热电转换材料的基体内的纳米复合热电转换材料的方法的特征在于包括以下阶段:第一阶段,其中在溶液中, 盐用于沉淀/生长由构成热电转换材料的元件组成的纳米颗粒,前体的聚合用于沉淀/生长由构成声子散射颗粒的氧化物组成的纳米颗粒,并收集所述纳米颗粒的混合物; 以及第二阶段,其中使用水热处理将所述混合物合成为复合纳米颗粒,然后将其烧结。 制造纳米复合热电转换材料的方法的特征还在于,在上述第一阶段中,由构成热电转换材料的第一组元素组成的纳米颗粒在由第二组元素的氧化物构成的纳米颗粒之前沉淀出或生长 构成声子散射粒子。