Low-temperature and flexible strategy to in-situ fabricate ZrSiO_(4)-based ceramic composites via doping and tuning solid-state reaction  

作　　者：Bohan Wang Le Fu Junjie Song Wenjun Yu Ying Deng Guofu Xu Jiwu Huang Wei Xia 

机构地区：[1]School of Materials Science and Engineering,Central South University,Changsha 410083,China [2]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [3]Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing,Yantai 264006,China [4]Applied Materials Science,Department of Materials Science and Engineering,Uppsala University,Uppsala 75121,Sweden

出　　处：《Journal of Advanced Ceramics》2023年第6期1238-1257,共20页先进陶瓷（英文）

基　　金：the financial support of the National Natural Science Foundation of China(52102084);Natural Science Foundation of Hunan Province(2022JJ30718);the financial support of the Youth Innovation Promotion Association Chinese Academy of Sciences(CAS)(2022428);the Science Fund of Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing(AMGM2021A08).

摘　　要：Synthetic zircon(ZrSiO_(4))ceramics are typically fabricated at elevated temperatures(over 1500℃),which would lead to high manufacturing cost.Meanwhile,reports about preparing ZrSiO_(4)-based ceramic composites via controlling the solid-state reaction between zirconia(ZrO_(2))and silica(SiO_(2))are limited.In this work,we proposed a low-temperature strategy to flexibly design and fabricate ZrSiO_(4)-based ceramic composites via doping and tuning the solid-state reaction.Two ceramic composites and ZrSiO_(4) ceramics were in-situ prepared by reactive fast hot pressing(FHP)at approximately 1250℃ based on the proposed strategy,i.e.,a ZrSiO_(4)-SiO_(2) dual-phase composite with bicontinuous interpenetrating and hierarchical microstructures,a ZrSiO_(4)-ZrO_(2) dual-phase composite with a microstructure of ZrO_(2) submicron-and nano-particles embedded in a micron ZrSiO_(4) matrix,and ZrSiO_(4) ceramics with a small amount of residual ZrO_(2) nanoparticles.The results showed that the phase compositions,microstructure configurations,mechanical properties,and wear resistance of the materials can be flexibly regulated by the proposed strategy.Hence,ZrSiO_(4)-based ceramic composites with different properties can be easily fabricated based on different application scenarios.These findings would offer useful guidance for researchers to flexibly fabricate ZrSiO_(4)-based ceramic composites at low temperatures and tailor their microstructures and properties through doping and tuning the solid-state reaction.

关 键 词：zirconia(ZrO_(2))-silica(SiO_(2)) zircon(ZrSiO_(4)) solid-state reaction ceramic composite mechanical properties wear resistance 

分 类 号：TQ174.1[化学工程—陶瓷工业]