Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Boron carbide/lead carbide composite anti-radiation material as well as preparation method and application thereof
The invention provides a boron carbide/lead composite anti-radiation material and a preparation method and application thereof, the material comprises boron carbide and lead, and the boron carbide accounts for 45-80% of the total volume of the material. The preparation method comprises the following steps: S1, preparing a porous ceramic preform from boron carbide particles, aluminum dihydrogen phosphate powder and liquid paraffin; s2, lead is infiltrated into the porous ceramic prefabricated body through a vacuum gas pressure infiltration method, and a lead boron carbide casting is obtained; and S3, the lead boron carbide casting is subjected to heat treatment. The shielding material is light in weight and excellent in mechanical and machining performance, the content of lead and boron carbide can be designed in a user-defined mode according to gamma ray and neutron radiation intensity, other shielding protection materials do not need to be introduced, and the shielding efficiency is at least improved by 40%; and metallization plating treatment is carried out on the surface of the substrate, so that the substrate has weldability and three-proofing performance, and the substrate can be applied to the field of electronic component packaging in gamma-ray and neutron radiation environments in a breakthrough manner.
本发明提供一种碳化硼/铅复合防辐射材料、其制备方法及应用，该材料包括碳化硼和铅，所述碳化硼占材料总体积分数45％‑80％。其制备方法，其包括以下步骤S1：用碳化硼颗粒、磷酸二氢铝粉体与液态石蜡制备多孔陶瓷预制体；S2：采用真空气体压力浸渗方法将铅浸渗到所述多孔陶瓷预制体内，得到铅碳化硼铸件；S3：将所述铅碳化硼铸件进行热处理，即可。本发明提供一种重量轻、力学和机加性能优异，并且能根据γ射线和中子辐射强度自定义设计铅和碳化硼含量，无需引入其他屏蔽防护材料，屏蔽效率至少提升40％；对其表面进行金属化镀覆处理，使其具有可焊性和三防性能，突破性的使其可应用于具有γ射线和中子辐射环境下的电子元器件封装领域。
Boron carbide/lead carbide composite anti-radiation material as well as preparation method and application thereof
The invention provides a boron carbide/lead composite anti-radiation material and a preparation method and application thereof, the material comprises boron carbide and lead, and the boron carbide accounts for 45-80% of the total volume of the material. The preparation method comprises the following steps: S1, preparing a porous ceramic preform from boron carbide particles, aluminum dihydrogen phosphate powder and liquid paraffin; s2, lead is infiltrated into the porous ceramic prefabricated body through a vacuum gas pressure infiltration method, and a lead boron carbide casting is obtained; and S3, the lead boron carbide casting is subjected to heat treatment. The shielding material is light in weight and excellent in mechanical and machining performance, the content of lead and boron carbide can be designed in a user-defined mode according to gamma ray and neutron radiation intensity, other shielding protection materials do not need to be introduced, and the shielding efficiency is at least improved by 40%; and metallization plating treatment is carried out on the surface of the substrate, so that the substrate has weldability and three-proofing performance, and the substrate can be applied to the field of electronic component packaging in gamma-ray and neutron radiation environments in a breakthrough manner.
本发明提供一种碳化硼/铅复合防辐射材料、其制备方法及应用，该材料包括碳化硼和铅，所述碳化硼占材料总体积分数45％‑80％。其制备方法，其包括以下步骤S1：用碳化硼颗粒、磷酸二氢铝粉体与液态石蜡制备多孔陶瓷预制体；S2：采用真空气体压力浸渗方法将铅浸渗到所述多孔陶瓷预制体内，得到铅碳化硼铸件；S3：将所述铅碳化硼铸件进行热处理，即可。本发明提供一种重量轻、力学和机加性能优异，并且能根据γ射线和中子辐射强度自定义设计铅和碳化硼含量，无需引入其他屏蔽防护材料，屏蔽效率至少提升40％；对其表面进行金属化镀覆处理，使其具有可焊性和三防性能，突破性的使其可应用于具有γ射线和中子辐射环境下的电子元器件封装领域。
Boron carbide/lead carbide composite anti-radiation material as well as preparation method and application thereof
一种碳化硼/铅复合防辐射材料、其制备方法及应用
WANG CHENG (Autor:in) / YANG JIANRONG (Autor:in) / HE LAN (Autor:in) / WANG ZICHAO (Autor:in)
27.12.2022
Patent
Elektronische Ressource
Chinesisch
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