Characterisation of graphene nanoplatelets reinforced hot pressed Ti3SiC2 ceramic

被引：8
作者：
Cheng, X. [1 ]
He, R. [1 ,2 ]
Qu, Z. [1 ]
Chen, M. [2 ]
机构：
[1] Peking Univ, State Key Lab Turbulence & Complex Syst, Coll Engn, Beijing 100871, Peoples R China
[2] Beijing Inst Technol, Beijing 100081, Peoples R China
来源：
ADVANCES IN APPLIED CERAMICS | 2016年 / 115卷 / 01期
基金：
美国国家科学基金会; 中国博士后科学基金;
关键词：
Ti3SiC2; Graphene nanoplatelets; Microstructure; Mechanical properties; Ceramic; MECHANICAL-PROPERTIES; COMBUSTION SYNTHESIS; MATRIX COMPOSITES; THERMAL-EXPANSION; TEMPERATURE; ZIRCONIA; NANOCOMPOSITES; DISPERSIONS; FABRICATION; POWDER;
D O I：
10.1179/1743676115Y.0000000060
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ti3SiC2 based ceramic reinforced by 5 wt-% graphene nanoplatelets (GNPs) was prepared by hot pressing at 1550 degrees C for 1 h under a uniaxial pressure load of 30 MPa. The effects of GNPs on the strengthening and toughening of the hot pressed Ti3SiC2 based ceramic were investigated. Comparing with t monolithic Ti3SiC2 ceramic, the flexural strength and facture toughness of the Ti3SiC2-GNP ceramic were significantly improved. The flexural strength and fracture toughness increased from 451.9 to 800.6 MPa, and from 6.23 to 9.67 MPa m(1/2) respectively. The mechanism for these mechanical property improvements was attributed to the layered fracture of Ti3SiC2 grains, refined crystalline strengthening and GNP strengthening.
引用
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页码：43 / 48
页数：6
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