Charge-induced reversible bending in nanoporous alumina-aluminum composite

被引：7

作者：

Cheng, Chuan ^{[1
]}

Ngan, A. H. W. ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 21期

关键词：

ANODIC ALUMINUM; SURFACE-STRESS; GROWTH; STRAIN; OXIDE; METAL; GOLD;

D O I：

10.1063/1.4808212

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Upon electrical charging, reversible bending was found in nanoporous anodic alumina-aluminum foil composites, as directly observed by an optical microscope and detected by in situ nanoindentation. The bending is thought to be the result of charge-induced surface stresses in the nanoporous alumina. The results suggest the possibility of a type of composite foil materials for applications as microscale actuators to transform electrical energy into mechanical energy. (C) 2013 AIP Publishing LLC.

引用

页数：4

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