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http://dx.doi.org/10.1163/156855109X428763

Wet to Shrink: an Approach to Realize Negative Expansion upon Wetting  

Sun, L. (School of Civil Engineering, Shenyang Jianzhu University)
Huang, W.M. (School of Mechanical and Aerospace Engineering, Nanyang Technological University)
Publication Information
Advanced Composite Materials / v.18, no.2, 2009 , pp. 95-103 More about this Journal
Abstract
Composites can be designed to have special properties, and even such properties that are difficult to find in nature. We propose a simple approach to realize negative expansion upon wetting, i.e., contraction upon wetting, using swelling materials. The key parameters in one-dimensional case are investigated, and the possible configurations for two and three-dimensional cases are presented. The feasibility is demonstrated through a simple test.
Keywords
Wetting; contraction; swelling; negative expansion;
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