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    • 1. 发明授权
    • Method of fabricating thermoelectric materials using core-shell structured nano-particles, and thermoelectric materials fabricated by the same
    • 使用核 - 壳结构化纳米颗粒制造热电材料的方法,以及由其制造的热电材料
    • US09336922B2
    • 2016-05-10
    • US13552372
    • 2012-07-18
    • Kyung Tae KimGook Hyun Ha
    • Kyung Tae KimGook Hyun Ha
    • H01L35/16H01B1/20B82Y30/00H01L35/12H01L35/18H01L35/34
    • H01B1/20B82Y30/00H01L35/12H01L35/16H01L35/18H01L35/34
    • A fabrication method of thermoelectric materials using core-shell structured nano-particles and thermoelectric materials fabricated by the same are provided. The method includes preparing core-shell structured nano-particles having thermoelectric elements coated on the surface thereof (step 1); adding and mixing the prepared core-shell structured nano-particles of step 1, bismuth (Bi) salts, tellurium (Te) salts and a surfactant in a solvent (step 2); adding and dispersing a reducing agent in the mixture of step (step 3); and heating the mixture of step 3 in which reducing agent is added and dispersed (step 4). According to the present invention, thermoelectric materials, nano-phase is homogeneously dispersed inside of thermoelectric grain boundary, can be fabricated and if the fabricated materials are used after sintering and bulking, the thermoelectric materials are maintained in a state that the nano-particles remain in dispersed phase even after sintering.
    • 提供了使用芯壳结构的纳米颗粒的热电材料及其制造的热电材料的制造方法。 该方法包括制备具有涂覆在其表面上的热电元件的芯壳结构的纳米颗粒(步骤1); 将制备的步骤1的核 - 壳结构纳米颗粒,铋(Bi)盐,碲(Te)盐和表面活性剂加入并混合在溶剂中(步骤2); 在步骤(步骤3)的混合物中加入和分散还原剂; 并加热其中添加和分散还原剂的步骤3的混合物(步骤4)。 根据本发明,可以制造热电材料纳米相均匀地分散在热电晶界内部,并且如果在烧结和膨胀之后使用制造的材料,则将热电材料保持在纳米颗粒保持的状态 即使在烧结后也是分散相。
    • 2. 发明授权
    • Thermoelectric material and composites made from thermoelectric material and a method for fabricating thereof
    • 由热电材料制成的热电材料和复合材料及其制造方法
    • US08845918B2
    • 2014-09-30
    • US12883803
    • 2010-09-16
    • Kyung Tae KimGook Hyun HaDong Won Kim
    • Kyung Tae KimGook Hyun HaDong Won Kim
    • H01B1/04H01B1/18H01L35/22H01L35/26H01L35/34C22C1/02
    • H01B1/18B22F9/04B22F9/24B22F2998/10C22C12/00C22C26/00C22C47/14C22C49/12C22C49/14H01L35/22H01L35/26H01L35/34B22F3/105
    • The thermoelectric material according to the present invention is characterized in that carbon nanotubes are dispersed in thermoelectric matrix powder by mechanically grinding, mixing, and treating by heating a mixed powder formed through a chemical reaction after mixing a first solution in which carbon nanotubes are dispersed and a second solution containing metallic salts. Further, a method for fabricating the thermoelectric material includes fabricating the first solution and the second solution, mixing the first solution and the second solution with each other to form a mixed solution, forming and growing a mixed powder in which carbon nanotubes and metals are mixed by a chemical reaction of the mixed solution, mechanically grinding and mixing the mixed powder, and heating the ground-and-mixed mixed powder to form the thermoelectric material. In addition, a composite can be made from the thermoelectric material by performing a spark plasma sintering process using the thermoelectric material, and has an improved thermoelectric efficiency due to the carbon nanotubes dispersed in the thermoelectric materials.
    • 根据本发明的热电材料的特征在于,通过在将分散有碳纳米管的第一溶液与第一溶液分散后,通过加热通过化学反应形成的混合粉末进行机械研磨,混合和处理,将碳纳米管分散在热电基质粉末中 含有金属盐的第二溶液。 此外,制造热电材料的方法包括制造第一溶液和第二溶液,将第一溶液和第二溶液彼此混合以形成混合溶液,形成和生长其中混合有碳纳米管和金属的混合粉末 通过混合溶液的化学反应,机械研磨和混合混合粉末,并加热研磨和混合的混合粉末以形成热电材料。 此外,可以通过使用热电材料进行放电等离子体烧结工艺,从热电材料制成复合材料,并且由于碳纳米管分散在热电材料中而具有改善的热电效率。
    • 3. 发明申请
    • THERMOELECTRIC MATERIAL AND COMPOSITES MADE FROM THERMOELECTRIC MATERIAL AND A METHOD FOR FABRICATING THEREOF
    • 热电材料的热电材料和复合材料及其制造方法
    • US20110284804A1
    • 2011-11-24
    • US12883803
    • 2010-09-16
    • Kyung Tae KimGook Hyun HaDong Won Kim
    • Kyung Tae KimGook Hyun HaDong Won Kim
    • H01B1/04
    • H01B1/18B22F9/04B22F9/24B22F2998/10C22C12/00C22C26/00C22C47/14C22C49/12C22C49/14H01L35/22H01L35/26H01L35/34B22F3/105
    • The thermoelectric material according to the present invention is characterized in that carbon nanotubes are dispersed in thermoelectric matrix powder by mechanically grinding, mixing, and treating by heating a mixed powder formed through a chemical reaction after mixing a first solution in which carbon nanotubes are dispersed and a second solution containing metallic salts. Further, a method for fabricating the thermoelectric material includes fabricating the first solution and the second solution, mixing the first solution and the second solution with each other to form a mixed solution, forming and growing a mixed powder in which carbon nanotubes and metals are mixed by a chemical reaction of the mixed solution, mechanically grinding and mixing the mixed powder, and heating the ground-and-mixed mixed powder to form the thermoelectric material. In addition, a composite can be made from the thermoelectric material by performing a spark plasma sintering process using the thermoelectric material, and has an improved thermoelectric efficiency due to the carbon nanotubes dispersed in the thermoelectric materials.
    • 根据本发明的热电材料的特征在于,通过在将分散有碳纳米管的第一溶液与第一溶液分散后,通过加热通过化学反应形成的混合粉末进行机械研磨,混合和处理,将碳纳米管分散在热电基质粉末中 含有金属盐的第二溶液。 此外,制造热电材料的方法包括制造第一溶液和第二溶液,将第一溶液和第二溶液彼此混合以形成混合溶液,形成和生长其中混合有碳纳米管和金属的混合粉末 通过混合溶液的化学反应,机械研磨和混合混合粉末,并加热研磨和混合的混合粉末以形成热电材料。 此外,可以通过使用热电材料进行放电等离子体烧结工艺,从热电材料制成复合材料,并且由于碳纳米管分散在热电材料中而具有改善的热电效率。