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Boron carbide-based layered impact-resistant ceramic and preparation method thereof
The invention discloses a boron carbide-based layered impact-resistant ceramic, which comprises an elastic breaking layer, a middle layer and a toughening layer which are sequentially superposed in the thickness direction, the thickness ratio of the elastic breaking layer is 40-50%, the thickness ratio of the middle layer is 25-30%, the thickness ratio of the toughening layer is 25-35%, and the thickness ratio of the toughening layer is 25-35%. Meanwhile, the invention provides a preparation method combining layering preparation with pressing sintering, through component and microstructure design, the multi-layer composite material with gradually-enhanced toughness is prepared, and the multi-layer composite material has very high machinability and can be used for preparing ceramic/metal composite armors. Meanwhile, the toughening layer containing the metal structure can greatly weaken dynamic damage of reflected tensile waves to the ceramic panel, the acting time of the ceramic panel and an external impact object is prolonged, dissipation and absorption of kinetic energy of the external impact object are increased, and therefore the overall impact resistance of the ceramic/metal composite armor is greatly improved.
本发明公开了一种碳化硼基层状抗冲击陶瓷，包括厚度方向上依次叠加的破弹层、中间层和增韧层，其中所述破弹层厚度占比为40％～50％、所述中间层厚度占比为25％～30％，所述增韧层厚度占比为25％～35％，同时提供了一种分层制备结合压制烧结的制备方法，通过成分和微观结构设计，制备出一种韧性逐渐增强的多层复合材料，具有很强的可加工性，可用于制备陶瓷/金属复合装甲，同时其含金属组织的增韧层将极大弱化反射拉伸波对陶瓷面板的动态损伤，延长了陶瓷面板与外部冲击物的作用时间，增大了对外部冲击物动能的耗散与吸收，从而较大提升陶瓷/金属复合装甲整体抗冲击性能。
Boron carbide-based layered impact-resistant ceramic and preparation method thereof
The invention discloses a boron carbide-based layered impact-resistant ceramic, which comprises an elastic breaking layer, a middle layer and a toughening layer which are sequentially superposed in the thickness direction, the thickness ratio of the elastic breaking layer is 40-50%, the thickness ratio of the middle layer is 25-30%, the thickness ratio of the toughening layer is 25-35%, and the thickness ratio of the toughening layer is 25-35%. Meanwhile, the invention provides a preparation method combining layering preparation with pressing sintering, through component and microstructure design, the multi-layer composite material with gradually-enhanced toughness is prepared, and the multi-layer composite material has very high machinability and can be used for preparing ceramic/metal composite armors. Meanwhile, the toughening layer containing the metal structure can greatly weaken dynamic damage of reflected tensile waves to the ceramic panel, the acting time of the ceramic panel and an external impact object is prolonged, dissipation and absorption of kinetic energy of the external impact object are increased, and therefore the overall impact resistance of the ceramic/metal composite armor is greatly improved.
本发明公开了一种碳化硼基层状抗冲击陶瓷，包括厚度方向上依次叠加的破弹层、中间层和增韧层，其中所述破弹层厚度占比为40％～50％、所述中间层厚度占比为25％～30％，所述增韧层厚度占比为25％～35％，同时提供了一种分层制备结合压制烧结的制备方法，通过成分和微观结构设计，制备出一种韧性逐渐增强的多层复合材料，具有很强的可加工性，可用于制备陶瓷/金属复合装甲，同时其含金属组织的增韧层将极大弱化反射拉伸波对陶瓷面板的动态损伤，延长了陶瓷面板与外部冲击物的作用时间，增大了对外部冲击物动能的耗散与吸收，从而较大提升陶瓷/金属复合装甲整体抗冲击性能。
Boron carbide-based layered impact-resistant ceramic and preparation method thereof
一种碳化硼基层状抗冲击陶瓷及其制备方法
WANG WEIMIN (author) / CUI YI (author) / BAO SIZHUO (author) / LI ZHANBAI (author) / FU SHENGDONG (author)
2024-11-01
Patent
Electronic Resource
Chinese
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