Downloaded by NORTH CAROLINA STATE UNIV on October 7, 2012 | http://pubs.acs.org Publication Date (Web): November 10, 2010 | doi: 10.1021/bk-2010-1050.ch004
Chapter 4
Smart Self-Healing Material Systems Using Inductive and Resistive Heating Terrisa Duenas,*,a Andrew Enke,a Karen Chai,a Matt Castellucci,b Vishnu Baba Sundaresan,b Fred Wudl,c Erin B. Murphy,c Ajit Mal,d James R. Alexandar,e Aaron Corder,f and Teng K. Ooif,g aNextGen
Aeronautics Inc., Torrance, CA Polytechnic Institute and State University, Blacksburg, VA cUniversity of California, Santa Barbara, CA dUniversity of California, Los Angeles, CA eUS Army Aviation and Missile Research, Development and Engineering Center, Redstone Arsenal, AL fMissile Defense Agency, Pentagon Defense, Washington, DC gOffice of Naval Research, Washington, DC *
[email protected] bVirginia
Based on the metric of “healing window”, the ionomer composite containing 2-3% nano iron oxide particles and heated at induction frequencies between 250 and 300 kHz yields the most favorable results. The metric of healing window is defined as the time difference between initiation of healing (melting) and onset of deformation. At this aforementioned ideal volume fraction, composition and induction frequency range, healing of a damaged thick film of ionomeric polymer occurs between 5 and 10 seconds. In this study, both compliant and structural remendable polymers are combined with a small amount of heating material (
