氧化锌基电工陶瓷复合材料的低碳冷烧结研究进展OA

Conventional electroceramic materials are typically sintered at high temperatures above 1 000 ℃.However,such high-temperature sintering conditions often result in performance degradation of functional ceramics and restrict their compositing with other materials,such as polymers and metals.As an emerging low-temperature sintering technique,the cold sintering process(CSP)allows ceramic densification at temperatures below 300 ℃,significantly reducing ener-gy consumption and carbon emissions during manufacturing.This method provides a novel strategy for the development and performance optimization of advanced electroceramics.This paper mainly summarizes recent advances in cold sin-tering of zinc oxide(ZnO)based electroceramics and their composites.First,the densification mechanism of ZnO ceramics with CSP is discussed.Then,the low-temperature sintering processes for various electroceramic composites,in-cluding ZnO varistors,ZnO-polymer,ZnO based two-dimensional material composites,and ZnO-metal are analyzed.These materials exhibit excellent electrical,optical,and mechanical properties,along with unique features such as super-hydrophobicity,grain anisotropy,and switch-like behavior.The results indicate that CSP exhibits promising application in ZnO-based electroceramics and their composites,while also providing valuable insights into the design and performance enhancement of other advanced electroceramic materials.