Table of Contents
Journal of Composites
Volume 2016, Article ID 7058649, 9 pages
http://dx.doi.org/10.1155/2016/7058649
Research Article

Microwave Assisted Manufacturing and Repair of Carbon Reinforced Nanocomposites

1Texas State University, San Marcos, TX, USA
2Johnson Space Center Engineering, Technology and Science (JETS) Contract, Jacobs, Houston, TX, USA
3National Aeronautics and Space Administration, Johnson Space Center, Houston, TX, USA
4nanoComposix, San Diego, CA, USA

Received 11 June 2016; Revised 17 August 2016; Accepted 30 August 2016

Academic Editor: Yanqing Yang

Copyright © 2016 Edward D. Sosa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We report a composite capable of advanced manufacturing and damage repair. Microwave energy is used to induce thermal reversible polymerization of the matrix allowing for microwave assisted composite welding and repair. Composites can be bonded together in just a few minutes through microwave welding. Lap shear testing demonstrates that microwave welded composites exhibit 40% bond strength relative to composites bonded with epoxy resin. Double cantilever beam testing shows 60% recovery in delamination strength after microwave assisted composite repair. The interfacial adhesion and composite repair after microwave exposure are examined by X-ray computed tomography. The microwave processing is shown to be reproducible and consistent. The ability to perform scalable manufacturing is demonstrated by the construction of a large structure from smaller components.