Mechanical, electrical, and thermal properties of graphene nanosheet/aluminum nitride composites

被引：82

作者：

Yun, Chuang ^{[1
]}

Feng, Yongbao ^{[1
,2
]}

Qiu, Tai ^{[1
]}

Yang, Jian ^{[1
]}

Li, Xiaoyun ^{[1
]}

Yu, Lei ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China

[2] Nanjing Sanle Elect Informat Ind Grp Co Ltd, Nanjing 211800, Jiangsu, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 07期

关键词：

Electrical properties; Mechanical properties; Thermal properties; Graphene nanosheets; MN; ALN CERAMICS; MICROSTRUCTURE; RESISTIVITY; PERCOLATION; TRANSPORT; BEHAVIOR; ROUTE; PHASE;

D O I：

10.1016/j.ceramint.2015.03.075

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：

Graphene nanosheet (GNS)/aluminum nitride (AlN) composites were prepared by hot-pressing and effects of GNSs on their microstructural, mechanical, thermal, and electrical properties were investigated. At 1.49 vol% GNSs content, the fracture toughness (5.09 MPa m(1/2)) and flexural strength (441 MPa) of the composite were significantly increased by 30.17% and 17.28%, respectively, compared to monolithic AN. The electrical conductivity of the composites was effectively enhanced with the addition of GNSs, and showed a typical percolation behavior with a low percolation threshold of 2.50 +/- 0.4 vol%. The thermal conductivity of the composites decreased with the addition of GNSs. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：8643 / 8649

页数：7