Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
B4C-TiB2/BN layered ceramic material and preparation method thereof
The invention provides a B4C-TiB2/BN layered ceramic material and a preparation method thereof, and belongs to the technical field of layered ceramic material preparation. The layered ceramic material is formed by sequentially and alternately overlapping B4C-TiB2 layers and BN layers, and the BN layers are located between the two B4C-TiB2 layers. According to the invention, the B4C-TiB2 layer is used as the matrix layer, the BN layer is used as the weak interface layer, and the fracture toughness is greatly improved while high strength of the whole material is maintained through a plurality of toughening modes such as crack deflection toughening of the weak interface layer, residual compressive stress toughening of the matrix layer and microcrack toughening, so that the material has good impact resistance.
本发明提供了一种B4C‑TiB2/BN层状陶瓷材料及其制备方法，属于层状陶瓷材料制备技术领域。所述层状陶瓷材料由B4C‑TiB2层与BN层依次交替叠加而成，所述BN层位于两层所述B4C‑TiB2层之间。本发明以B4C‑TiB2层为基体层、BN层为弱界面层，通过弱界面层的裂纹偏转增韧、基体层的残余压应力增韧和微裂纹增韧等多种增韧方式，使得材料整体在保留较高强度的同时断裂韧性大大提高，具有较好的抗冲击性能。
B4C-TiB2/BN layered ceramic material and preparation method thereof
The invention provides a B4C-TiB2/BN layered ceramic material and a preparation method thereof, and belongs to the technical field of layered ceramic material preparation. The layered ceramic material is formed by sequentially and alternately overlapping B4C-TiB2 layers and BN layers, and the BN layers are located between the two B4C-TiB2 layers. According to the invention, the B4C-TiB2 layer is used as the matrix layer, the BN layer is used as the weak interface layer, and the fracture toughness is greatly improved while high strength of the whole material is maintained through a plurality of toughening modes such as crack deflection toughening of the weak interface layer, residual compressive stress toughening of the matrix layer and microcrack toughening, so that the material has good impact resistance.
本发明提供了一种B4C‑TiB2/BN层状陶瓷材料及其制备方法，属于层状陶瓷材料制备技术领域。所述层状陶瓷材料由B4C‑TiB2层与BN层依次交替叠加而成，所述BN层位于两层所述B4C‑TiB2层之间。本发明以B4C‑TiB2层为基体层、BN层为弱界面层，通过弱界面层的裂纹偏转增韧、基体层的残余压应力增韧和微裂纹增韧等多种增韧方式，使得材料整体在保留较高强度的同时断裂韧性大大提高，具有较好的抗冲击性能。
B4C-TiB2/BN layered ceramic material and preparation method thereof
B4C-TiB2/BN层状陶瓷材料及其制备方法
CAI DELONG (Autor:in) / JIA DECHANG (Autor:in) / WANG BO (Autor:in) / YANG ZHIHUA (Autor:in) / LI DAXIN (Autor:in) / XUE CHENGYONG (Autor:in) / DUAN XIAOMING (Autor:in) / HE PEIGANG (Autor:in) / WANG SHENGJIN (Autor:in) / ZHOU YU (Autor:in)
27.07.2021
Patent
Elektronische Ressource
Chinesisch
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