Fabrication, thermal expansions, and mechanical properties of carbon/aluminum composites based on wood templates
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Usually, the shape, the size, and the distribution of the components in metal matrix composites depend on the artificial fabrication processes. However, the technique of fabricating materials with desired and delicate microstructures is still not simplified and easy. Wood, after hundreds of millions of years of evolution, possesses rational and graceful microstructures that cannot be obtained artificially. It can be considered as a natural composite material with a hierarchical architecture, where cellulose, hemicellulose, and lignin form cellular microstructures [1, 2]. In wood structures, there exists large number of channels made up of cells. Through these channel-structures, water and mineral elements can be transported to every part of the tree. Moreover, it should be noted that a huge tree is capable of maintaining its position in the wind on its thin trunk for hundreds of years. This is possible due to its high strength, modulus, and stiffness [3, 4, 5]. These...
KeywordsPorous Carbon Compressive Residual Stress Compression Strength Molten Aluminum Alloy Thick Channel
The authors wish to express thanks to the financial support of the National Natural Science Foundation of China (No. 50271041), “863” Program (No. 2002AA334030), Basic Research Program of Shanghai (No. 04DZ14002), Key Basic Research Program of Shanghai (No. 03JC14044).
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