| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 포스터-콜로이드·계면화학 |
| 제목 | Auxetic Photonic Patterns with Ultrasensitive Mechanochromism |
| 초록 | Previousnon-destructive tests used to diagnose material damage can only be measuredunder conditions supplied with external power and only experts can confirm.Herein, showed a film that could intuitively diagnose the life of the materialin real-time and determine the distribution of stress and stimulation and theprogress of damage using an auxetic surface and an elastic photonic crystal. Inthe auxetic surface with hierarchically cut hinges, the cut region contributingto expansion is composed of elastic colloidal photonic crystals with lowelastic modulus, and the skeleton part, which hardly deforms, has a relativelylarge elastic modulus and uses a polymer material capable of torsionaldeformation. Even at a small overall strain, the local strain in the elasticphotonic crystal region was maximized. These sensors can be applied toinfrastructure including bridges, roads, and port facilities, as well asexterior and structural materials such as old buildings. |
| 저자 | 이환영, 김신현 |
| 소속 | 카이스트 |
| 키워드 | photonic crystals; Auxetic Patterns; Mechanochromism |
