2011 Fiscal Year Final Research Report

Development of structural color media for the prediction of fracture

Research Project

Project/Area Number	21656172
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Structural/Functional materials
Research Institution	Nagoya University
Principal Investigator	SAITOH Tohru 名古屋大学, 工学研究科, 准教授 (40186945)
Project Period (FY)	2009 – 2011
Keywords	構造色 / 塗料 / 水和ゲル / コロイド / 架橋剤 / 伸縮性 / 破断予測 / 蛍光消光
Research Abstract	Novel paints exhibiting structural color responsible by the stretching were prepared for the prediction of material fracture. Structural colors were appeared in hydrogels including dispersive silica or alumina colloids. The structural color shifted to longer wavelength by stretching the hydrogels. However, the structural color was significantly dependent on the angle of the observation. Therefore, it was difficult to distinguish the effect of stretching of materials or the location of observation on the structural color.