Micro-nanofiber composite gadolinium zirconate porous ceramic and preparation method and application thereof

The invention discloses a micro-nanofiber composite gadolinium zirconate porous ceramic and a preparation method and application thereof. The porous ceramic is micro-nano silicon dioxide fiber composite gadolinium zirconate porous ceramic, gadolinium zirconate serves as a ceramic dispersed phase, and micro-nano silicon dioxide fibers serving as a continuous phase serve as a reinforced framework material. Bonding is formed between the micro-nano silicon dioxide fibers, between the micro-nano silicon dioxide fibers and the ceramic, and between the ceramic particles and the aluminoborosilicate binder. The porous ceramic has the advantages of low thermal conductivity, high porosity and high strength. 本发明公开一种微纳米纤维复合锆酸钆多孔陶瓷及其制备方法和应用。所述多孔陶瓷为微纳米二氧化硅纤维复合锆酸钆多孔陶瓷，其中锆酸钆作为陶瓷分散相，作为连续相的微纳米二氧化硅纤维为增强骨架材料，所述微纳米二氧化硅纤维之间、所述微纳米二氧化硅纤维与陶瓷之间、以及陶瓷微粒之间均与铝硼硅酸盐粘结剂形成键合。该多孔陶瓷具有热导率较低、高孔隙率和高强度的优势。