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公开(公告)号：US11613797B2
公开(公告)日：2023-03-28
申请号：US16626004
申请日：2018-06-28
申请人： Oulun yliopisto
发明人： Jari Hannu , Jari Juuti , Heli Jantunen , Mikko Nelo , Tuomo Siponkoski , Hanna Kähäri
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 50μιτι, 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.
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公开(公告)号：US11891338B2
公开(公告)日：2024-02-06
申请号：US18113432
申请日：2023-02-23
申请人： Oulun yliopisto
发明人： Jari Hannu , Jari Juuti , Heli Jantunen , Mikko Nelo , Tuomo Siponkoski , Hanna Kähäri
CPC分类号： C04B35/00 , B22F1/052 , B22F3/02 , C22C1/051 , C22C32/0015 , B22F2302/25
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.
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