Preparation and Mechanical Properties of Graphene Nanosheet Reinforced Alumina Composites

被引：62
|
作者：
Liu, Xia [1 ]
Fan, Yu-Chi [3 ]
Li, Jian-Lin [2 ]
Wang, Lian-Jun [1 ]
Jiang, Wan [1 ]
机构：
[1] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
[2] Hainan Univ, Sch Mat & Chem Engn, Haikou 570228, Peoples R China
[3] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan
来源：
ADVANCED ENGINEERING MATERIALS | 2015年 / 17卷 / 01期
关键词：
FRACTURE-TOUGHNESS; ABRASIVE WEAR; EXFOLIATED GRAPHITE; MICROSTRUCTURE; NANOCOMPOSITES; OXIDE;
D O I：
10.1002/adem.201400231
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dense graphene nanosheets (GNSs)/Al2O3 composites have been prepared by spark plasma sintering from ball milled expanded graphite and Al2O3 powder. GNSs have been found to be homogeneously distributed in the alumina matrix. Results show that the introduction of GNSs leads to obvious refinement of Al2O3 grains and improvement of mechanical properties of the as-prepared composites. Compared with monolithic Al2O3, the flexural strength, fracture toughness, and Vickers hardness of as-prepared GNSs/Al2O3 samples have been improved by 103, 25, and 26%, respectively, which are attributed to the grain refinement, strong interfacial bonding, and pull-out of GNSs from the matrix.
引用
收藏
页码：28 / 35
页数：8
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