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Effect of Morphology of ZnO Nanowire Arrays on Interfacial Shear Strength in Carbon Fiber Composites

Published online by Cambridge University Press:  31 January 2011

Ulises Galan ,
Gregory Ehlert ,
Yirong Lin  and
Henry Angelo Sodano
Ulises Galan
Affiliation:
[email protected], Arizona State University, Mechanical and Aerospace Engineering, Tempe, Arizona, United States
Gregory Ehlert
Affiliation:
[email protected], Arizona State University, Mechanical and Aerospace Engineering, Tempe, Arizona, United States
Yirong Lin
Affiliation:
[email protected], Arizona State University, Mechanical and Aerospace Engineering, Tempe, Arizona, United States
Henry Angelo Sodano
Affiliation:
[email protected], Arizona State University, Mechanical and Aerospace Engineering, Tempe, Arizona, United States
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Abstract

ZnO nanowire arrays are grown on carbon fiber to enhance the interface strength of a polymer matrix composite without degrading the base fiber and in-plane strength of the composite. The morphology of the nanowire array is controlled during growth to create nanowires with different aspect ratios to elucidate the structure-property relations of the interphase. Nanowires are shown to double the composite interfacial shear strength at an intermediate nanowire length, indicating that an optimal point exists and the interface can be engineered to maximize the interfacial enhancement. Furthermore, the observed effect of the morphology on interface strength indicates that the bond between the ZnO nanowire array and the carbon fiber is quite strong, more than twice as strong as the interaction between the matrix and control fiber.

Keywords

Zncompositestrength
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1174: Symposium V – Functional Metal-Oxide Nanostructures , 2009 , 1174-V05-01
Copyright
Copyright © Materials Research Society 2009

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