Ambient flash sintering of reduced graphene oxide/zirconia composites:Role of reduced graphene oxide
Ambient flash sintering of reduced graphene oxide/zirconia composites:Role of reduced graphene oxide作者机构：Gas Turbine Research InstituteSchool of Mechanical EngineeringShanghai Jiao Tong University800 Dongchuan RdShanghai 200240China School of Materials Science and EngineeringShanghai Jiao Tong University800 Dongchuan RdShanghai 200240China
出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)
年 卷 期：2021年第60卷第1期
页 面：70-76页
核心收录：
学科分类：08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学]
基 金：supported by Shanghai Pujiang Program[No.18PJ1406500] the National Natural Science Foundation of China[No.51902197] the Start-up Foundation for the Youth Scholars of Shanghai Jiao Tong University[No.18×100040024]。
主 题：Flash sintering Reduced graphene oxide Zirconia Ceramic matrix composites
摘 要：Fabrication of graphene/ceramic composites commonly requires a high-temperature sintering step with long times as well as a vacuum or inert atmosphere,which not only results in property degradation but also significant equipment complexity and manufacturing costs.In this work,the ambient flash sintering behavior of reduced graphene oxide/3 mol% yttria-stabilized ZrO_(2)(rGO/3 YSZ) composites utilizing rGO as both a composite component and a conductive additive is reported.When the sintering condition is carefully optimized,a dense and conductive composite can be achieved at room temperature and in the air within 20 s.The role of the rGO in the FS of the rGO/3 YSZ composites is elucidated,especially with the assistance of a separate investigation on the thermal runaway behavior of the rGO.The work suggests a promising fabrication route for rGO/ceramic composites where the vacuum and furnace are not needed,which is of interest in terms of simplifying the fabrication equipment for energy and cost savings.
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