Abstract

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Title:: Three-Dimensional Graphene by 3D Printing and Related Advanced Ceramic Matrix Composites

Author(s):: YANG Jinshan; HUANG Kai; YOU Xiao; DONG Shaoming; State Key Laboratory of High Performance Ceramics & Super?ne Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences
Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences
University of Chinese Academy of Sciences

Keywords:: graphene; 3D printing; rheological property; ceramic matrix composites; chemical vapor infiltration

Abstract:: Graphene offers many superior properties like high strength, ultrahigh electrical conductivity and superior thermal conductivity, which can be used to improve the properties of ceramic matrix composites. However, the aggregation and restack of graphene give a restriction for the application. 3D printing is one additive manufacturing technology, which can be adopted for the controlled preparation of 3D graphene. The special porous microstructure of 3D graphene results in larger specific surface area, higher porosity, excellent compressibility and interconnected conductive network. The rheological properties of inks show that apparent viscosity decreases along with the shear rate increases, indicating shearthinning of inks required for 3D printing. 3D graphene/SiC composites are obtained by introducing SiC into 3D graphene using chemical vapor infiltration (CVI) process. Fracture surface suggests the uniform distribution of SiC and pullout of graphene. It demonstrates the advantages of 3D graphene/SiC by combining 3D printing and CVI.