CERAMIC COMPOSITE MATERIAL
    1.
    发明公开

    公开(公告)号:US20230192553A1

    公开(公告)日:2023-06-22

    申请号:US18113432

    申请日:2023-02-23

    申请人: Oulun yliopisto

    摘要: A process for manufacturing ceramic-metal composite material, comprises dissolving ceramic powder into water to obtain an aqueous solution of ceramic; mixing metal powder having a multimodal particle size where largest particle size is one fourth of the minimum dimension of a device, with the aqueous solution of ceramic to obtain a powder containing ceramic precipitated on the surface of metal particles; mixing the powder containing ceramic precipitated on the surface of the metal particles, with ceramic powder having a particle size below 50 μm, to obtain a powder mixture; adding saturated aqueous solution of ceramic to the powder mixture to obtain an aqueous composition containing ceramic and metal; compressing the aqueous composition to form a disc of ceramic-metal composite material containing ceramic and metal; and removing water from the ceramic-metal composite material; wherein ceramic content of the disc is 10 vol-% to 35 vol-%. Alternatively, ceramic-ceramic composite material may be manufactured.

    Nanocomposite thermoelectric conversion material and process for producing same
    6.
    发明授权
    Nanocomposite thermoelectric conversion material and process for producing same 有权
    纳米复合热电转换材料及其制造方法

    公开(公告)号:US08765003B2

    公开(公告)日:2014-07-01

    申请号:US13521797

    申请日:2011-01-18

    IPC分类号: H01L35/26

    摘要: The invention provides a nanocomposite thermoelectric conversion material (1) in which the matrix has a polycrystalline structure, and crystal grains (10) and a crystal grain boundary phase (12) of a different composition are present therein, and in which the same type of phonon-scattering particles (14) are dispersed within the crystal grains (10) and the crystal grain boundary phase (12).

    摘要翻译: 本发明提供一种纳米复合热电转换材料(1),其中基体具有多晶结构,并且其中存在不同组成的晶粒(10)和晶界相(12),其中相同类型 声散射粒子(14)分散在晶粒(10)和晶界相(12)内。

    OXYGEN ATOM-DISPERSED METAL MATRIX COMPOSITE AND METHOD OF MANUFACTURING THE SAME
    7.
    发明申请
    OXYGEN ATOM-DISPERSED METAL MATRIX COMPOSITE AND METHOD OF MANUFACTURING THE SAME 审中-公开
    氧原子分散金属基复合材料及其制造方法

    公开(公告)号:US20140127069A1

    公开(公告)日:2014-05-08

    申请号:US14129359

    申请日:2012-06-26

    IPC分类号: C22C32/00 B22D19/14 B22F3/14

    摘要: Disclosed is a method of manufacturing a metal matrix composite in which oxide nanoparticles are dispersed. Metal matrix composite powders in which oxide nanoparticles are dispersed are prepared. Gibbs free energy of the oxide nanoparticles is greater than that of an oxide of a metal matrix. A bulk processed material is manufactured from the composite powders through hot forming or a cast material is manufactured by inputting the composite powder into a molten base metal and then rapidly stirring a resultant mixture. The bulk processed material or the cast material is heat-treated so that atoms of the metal matrix and atoms of the oxide nanoparticles mutually diffuse. Oxygen atoms originating from the oxide nanoparticles are diffused and dispersed in the metal matrix.

    摘要翻译: 公开了一种其中分散氧化物纳米颗粒的金属基质复合材料的制造方法。 制备分散有氧化物纳米粒子的金属基质复合粉末。 氧化物纳米颗粒的吉布斯自由能大于金属基质的氧化物的自由能。 通过热成型由复合粉末制造散装处理材料,或者通过将复合粉末输入到熔融基底金属中,然后快速搅拌所得混合物来制造铸造材料。 本体加工材料或铸造材料被热处理,使得金属基体的原子和氧化物纳米颗粒的原子相互扩散。 来自氧化物纳米颗粒的氧原子扩散并分散在金属基质中。