Enhancement of open cell aluminum foams through thermal evaporating Zn film

被引：8

作者：

Li, Zhendong ^{[1
]}

Huang, Yingjie ^{[1
]}

Wang, Xinfu ^{[1
]}

Wang, Xingfu ^{[1
]}

Wang, Dan ^{[1
]}

Han, Fusheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 172卷

基金：

中国国家自然科学基金;

关键词：

Metallic composites; Deposition; Porous materials; Thick films; COATINGS; STRENGTH;

D O I：

10.1016/j.matlet.2016.02.154

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Relatively low mechanical properties of open cell aluminum foams have become a restrictive factor to their applications in engineering fields. To overcome this shortcoming, a surface enhancing method was investigated in the present study to coat a zinc film on the cell strut surface through thermal evaporating technology. The results show that the coated film obviously makes the foam enhanced and the compression yield strength is increased one order of magnitude higher than that of uncoated material. On the other hand, the mechanical characteristics of the foam has changed from ductile to brittle after the coating, represented by pronouncedly serrated stress-strain curves. This demonstrates that the mechanical behavior of the coated foam is to a great degree dominated by the film and the surface coating does be an effective way to modify the overall mechanical behavior of aluminum foams. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：120 / 124

页数：5

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