Nanoporous materials can be made stiffer than non-porous counterparts by surface modification

被引：165

作者：

Duan, H. L.

Wang, J.

Karihaloo, B. L.

Huang, Zt.

机构：

[1] Cardiff Univ, Sch Engn, Cardiff CF24 3AA, Wales

[2] Peking Univ, LTCS, Beijing 100871, Peoples R China

[3] Peking Univ, Dept Mech & Engn Sci, Beijing 100871, Peoples R China

来源：

ACTA MATERIALIA | 2006年 / 54卷 / 11期

基金：

中国国家自然科学基金;

关键词：

nano-cellular materials; elastic constants; surface stress; generalized young-Laplace equations; high stiffness;

D O I：

10.1016/j.actamat.2006.02.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nano-materials in which a large fraction of atoms resides within a few atomic layers near the surface can be designed to have novel properties by manipulating their surface parameters. We show that the effective elastic constants of nano-porous/cellular materials can be made to exceed those of the parent materials provided the pore surface elastic parameters satisfy certain conditions. These stiff nanoporous materials herald a radical breakthrough in sandwich-type construction. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：2983 / 2990

页数：8

共 37 条

[1]

Ashby M. F., 1997, CELLULAR SOLIDS STRU, DOI DOI 10.1017/CBO9781139878326

[2] Anisotropic thermal properties of nanochanneled alumina templates [J].