Research Progress on Ceramic-Polymer Composites Prepared by Cold Sintering Process
Typically,ceramics are sintered at temperatures of above 1000 ℃ by traditional sintering route,resulting in long sintering time and high energy consumptions.The high sintering temperatures adversely affect the interface control,phase stability,and material co-sintering,and thus,it is challenging to co-sinter ceramics and polymers with polymers as the fillers.Cold sintering process,employing an intermediate liquid phase and dissolution-precipitation process,enables rapid densification of ceramics at temperatures ≤ 300℃,which effectively addresses the co-sintering issue of ceramics and polymers.This review introduces the development of cold sintering process,sintering parameters and cold sintering mechanisms.The application and current status of cold sintering process in ceramic-polymer composites,such as microwave dielectrics,ferroelectrics,lithium-ion batteries,varistors,semiconductors and thermoelectric materials,are discussed in detail.Finally,the challenges and future prospects of cold sintering process are analyzed.
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维普
