title: Autonomous Indication of Mechanical Damage in Polymeric Coatings.
abstract: High-resolution in situ autonomous visual indication of mechanical damage is achieved through a microcapsule-based polymeric material system. Upon mechanical damage, ruptured microcapsules release a liquid indicator molecule. A sharp color change from light yellow to bright red is triggered when the liberated indicator 2',7'-dichlorofluorescein reacts with the polymeric coating matrix.
authors.affiliation: Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Wenle
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Christopher C
authors.initials: CC
authors.lastname: Matthews
authors.affiliation: Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Ke
authors.initials: K
authors.lastname: Yang
authors.affiliation: Department of Aerospace Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Michael T
authors.initials: MT
authors.lastname: Odarczenko
authors.affiliation: Department of Aerospace Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Scott R
authors.initials: SR
authors.lastname: White
authors.affiliation: Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Nancy R
authors.initials: NR
authors.lastname: Sottos
keywords: damage detection; microcapsules; self-reporting; smart coatings; visual indications