Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cr2AlC ceramic powder as well as preparation method and application thereof
The invention discloses Cr2AlC ceramic powder as well as a preparation method and application thereof, and relates to the technical field of ceramic powder materials. The preparation method comprises the steps that raw materials and a protective agent are put into a crucible to be sintered in a protective atmosphere, and in the crucible, the protective agent covers the surfaces of the raw materials; the raw materials comprise Cr3C2, Cr and Al in a molar ratio of 1: 1: 2; the protective agent comprises Al and graphite in a mass ratio of 1: (0.8-1.2), and the covering thickness of the protective agent is 15-20 mm. A layer of protective agent is laid on the surface of the raw material, so that evaporation loss of aluminum can be prevented, all the components in the raw material are stable in proportion, pure Cr2AlC ceramic powder can be formed after sintering in the protective atmosphere, meanwhile, large Cr2AlC ceramic powder can be prepared through the method, and the Cr2AlC ceramic powder high in yield and purity can be obtained at the same time.
本发明公开了一种Cr2AlC陶瓷粉体及其制备方法、应用，涉及陶瓷粉体材料技术领域。制备方法包括将原料和保护剂装入坩埚中进行保护气氛烧结，坩埚中，保护剂覆盖在原料的表面；原料包括摩尔比为1:1:2的Cr3C2、Cr和Al；保护剂包括质量比为1:(0.8～1.2)的Al和石墨，保护剂的覆盖厚度为15mm～20mm。在原料表面铺设一层保护剂可以防止铝的蒸发损失，使得原料中的各成分配比稳定，通过保护气氛烧结后能够形成纯净的Cr2AlC陶瓷粉体，同时该方法可以制备大块的Cr2AlC陶瓷粉体，可以同时获得产量高且纯度高的Cr2AlC陶瓷粉体。
Cr2AlC ceramic powder as well as preparation method and application thereof
The invention discloses Cr2AlC ceramic powder as well as a preparation method and application thereof, and relates to the technical field of ceramic powder materials. The preparation method comprises the steps that raw materials and a protective agent are put into a crucible to be sintered in a protective atmosphere, and in the crucible, the protective agent covers the surfaces of the raw materials; the raw materials comprise Cr3C2, Cr and Al in a molar ratio of 1: 1: 2; the protective agent comprises Al and graphite in a mass ratio of 1: (0.8-1.2), and the covering thickness of the protective agent is 15-20 mm. A layer of protective agent is laid on the surface of the raw material, so that evaporation loss of aluminum can be prevented, all the components in the raw material are stable in proportion, pure Cr2AlC ceramic powder can be formed after sintering in the protective atmosphere, meanwhile, large Cr2AlC ceramic powder can be prepared through the method, and the Cr2AlC ceramic powder high in yield and purity can be obtained at the same time.
本发明公开了一种Cr2AlC陶瓷粉体及其制备方法、应用，涉及陶瓷粉体材料技术领域。制备方法包括将原料和保护剂装入坩埚中进行保护气氛烧结，坩埚中，保护剂覆盖在原料的表面；原料包括摩尔比为1:1:2的Cr3C2、Cr和Al；保护剂包括质量比为1:(0.8～1.2)的Al和石墨，保护剂的覆盖厚度为15mm～20mm。在原料表面铺设一层保护剂可以防止铝的蒸发损失，使得原料中的各成分配比稳定，通过保护气氛烧结后能够形成纯净的Cr2AlC陶瓷粉体，同时该方法可以制备大块的Cr2AlC陶瓷粉体，可以同时获得产量高且纯度高的Cr2AlC陶瓷粉体。
Cr2AlC ceramic powder as well as preparation method and application thereof
Cr2AlC陶瓷粉体及其制备方法、应用
LIU QINGLIN (Autor:in) / LIAO YUNTING (Autor:in) / REN PING (Autor:in) / HE YI (Autor:in) / WEN XIAOJUN (Autor:in) / HE LIANG (Autor:in) / JIN YINGRONG (Autor:in)
30.08.2024
Patent
Elektronische Ressource
Chinesisch
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