Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-toughness ceramic material with bionic mud brick structure and preparation method of high-toughness ceramic material
The invention provides a preparation method of a high-toughness ceramic material with a bionic mud brick structure, which comprises the following steps: uniformly impregnating ceramic microbeads with a second-phase suspension, and carrying out pressure sintering to prepare a high-toughness ceramic matrix composite with a bionic'mud-brick 'structure. According to the method, spherical ceramic microbeads are used as bricks, a wrapped second phase is used as mud, and the bricks and the mud are stacked under the action of pressure to form a compact mud-brick structure. The'mud-brick 'structure enables cracks to deflect along a two-phase interface, and the fracture work is improved, so that the fracture toughness of the ceramic material is improved, and the structural ceramic with high mechanical property is obtained. The preparation process is simple and environment-friendly, raw materials are easy to obtain, complicated industrial equipment and pretreatment processes are omitted, the method of direct impregnation after stable suspension preparation is simple and easy to implement, the second phase is flexible to select, the multi-component compounding requirement is met, and structural design and functional regulation and control of the interface layer are facilitated.
本发明提供一种仿生泥砖结构高强韧陶瓷材料的制备方法，将第二相悬浮液对陶瓷微珠均匀浸渍，通过加压烧结制备具有仿生“泥‑砖”结构的高强韧陶瓷基复合材料。该方法以球形陶瓷微珠作为“砖”，包裹的第二相作为“泥”，在压力作用下堆积形成致密的“泥‑砖”结构。“泥‑砖”结构致使裂纹沿着两相界面处偏折，提高断裂功，从而提高陶瓷材料的断裂韧性，获得高力学性能的结构陶瓷。该制备工艺简单且环境友好，原料易得，无序复杂工业设备及预处理过程，配置稳定悬浮体后直接浸渍的方法简便易行，并且第二相选择灵活，满足多元复合的要求，方便进行界面层的结构设计以及功能化调控。
High-toughness ceramic material with bionic mud brick structure and preparation method of high-toughness ceramic material
The invention provides a preparation method of a high-toughness ceramic material with a bionic mud brick structure, which comprises the following steps: uniformly impregnating ceramic microbeads with a second-phase suspension, and carrying out pressure sintering to prepare a high-toughness ceramic matrix composite with a bionic'mud-brick 'structure. According to the method, spherical ceramic microbeads are used as bricks, a wrapped second phase is used as mud, and the bricks and the mud are stacked under the action of pressure to form a compact mud-brick structure. The'mud-brick 'structure enables cracks to deflect along a two-phase interface, and the fracture work is improved, so that the fracture toughness of the ceramic material is improved, and the structural ceramic with high mechanical property is obtained. The preparation process is simple and environment-friendly, raw materials are easy to obtain, complicated industrial equipment and pretreatment processes are omitted, the method of direct impregnation after stable suspension preparation is simple and easy to implement, the second phase is flexible to select, the multi-component compounding requirement is met, and structural design and functional regulation and control of the interface layer are facilitated.
本发明提供一种仿生泥砖结构高强韧陶瓷材料的制备方法，将第二相悬浮液对陶瓷微珠均匀浸渍，通过加压烧结制备具有仿生“泥‑砖”结构的高强韧陶瓷基复合材料。该方法以球形陶瓷微珠作为“砖”，包裹的第二相作为“泥”，在压力作用下堆积形成致密的“泥‑砖”结构。“泥‑砖”结构致使裂纹沿着两相界面处偏折，提高断裂功，从而提高陶瓷材料的断裂韧性，获得高力学性能的结构陶瓷。该制备工艺简单且环境友好，原料易得，无序复杂工业设备及预处理过程，配置稳定悬浮体后直接浸渍的方法简便易行，并且第二相选择灵活，满足多元复合的要求，方便进行界面层的结构设计以及功能化调控。
High-toughness ceramic material with bionic mud brick structure and preparation method of high-toughness ceramic material
一种仿生泥砖结构高强韧陶瓷材料及其制备方法
YANG JINLONG (Autor:in) / ZHAO YI (Autor:in) / HE GE (Autor:in) / SANG GUOLONG (Autor:in) / ZHANG BORAN (Autor:in) / ZHANG QIFAN (Autor:in) / ZHAO SHIHUI (Autor:in)
08.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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