Microstructure and mechanical properties of hot-pressed carbon nanotubes compacted by spark plasma sintering

被引：39

作者：

Li, JL ^{[1
]}

Bai, GZ ^{[1
]}

Feng, JW ^{[1
]}

Jiang, W ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab Superfine Struct & High Performance, Shanghai 200050, Peoples R China

来源：

CARBON | 2005年 / 43卷 / 13期

关键词：

carbon nanotubes; sintering; microstructure; mechanical properties;

D O I：

10.1016/j.carbon.2005.04.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bulk carbon nanotube samples were prepared by spark plasma sintering. The as-prepared bulk carbon nanotube material exhibited brittle fracture similar to that of common ceramics. Its fracture toughness was around 4.2 MPa m(1/2) while flexural strength was 50 MPa due to the weak bonding between carbon nanotubes. Obvious carbon nanotube bridging was found during the development of the crack induced by an indenter, which provides a possibility of carbon nanotube tough material. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2649 / 2653

页数：5

共 16 条

[1] Thermogravimetric analysis of the oxidation of multiwalled carbon nanotubes: Evidence for the role of defect sites in carbon nanotube chemistry [J].