基于宏观有序多孔SiC陶瓷板的制备和对其进行金属铸造的复合技术制备了一种具有三明治互穿结构的新型金属封装SiC陶瓷复合装甲.采用SEM和EDS手段对3种复合装甲中金属(钢和钛合金)/陶瓷界面的显微结构和元素组成或分布进行了分析.相对优良的界面结合的获得与界面相互作用和铸造冷却过程中陶瓷主要受压应力的状态密切相关.界面结构取决于采用的金属材料(包括主体金属元素及其存在状态)和铸造工艺.
A novel type of ceramic composite armor,metal-encased SiC ceramic armor with interpenetrating structure,was fabricated using a composite process,including preparation of reaction bonded SiC ceramic plate with ordered holes and metal casting of the macro-porous ceramic plate.The interface microstructures and elemental distributions or compositions of three different metals (a steel and two Ti alloys)/SiC composite armors were analyzed by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS).Relatively good interfacial bonding between ceramic and metal components was obtained,which is closely related to interfacial interactions and compressive residual stress on the ceramic during the cooling stage of casting.The interface microstructures depend significantly on the metal component composition (including the main element and the state of its existence after casting) and the casting process.
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