Gamma-irradiation-induced micro-structural variations in flame-retardant polyurethane foam using synchrotron X-ray micro-tomography

In this study, in-house-developed flame-retardant rigid polyurethane foam samples were exposed to gamma irradiation doses in the 0 – 20   kGy range and synchrotron radiation X-ray micro-computed tomography (SR- µ CT) imaging was employed for the analysis of radiation-induced morphological variations in their cellular microstructure. Qualitative and quantitative analysis of SR- µ CT images has revealed significant variations in the average cell size, shape, wall thickness, orientations and spatial anisotropy of the cellular microstructure in polyurethane foam.

Source: Journal of Synchrotron Radiation - August 15, 2019 Category: Physics Authors: Agrawal, A.K. Singh, B. Kashyap, Y.S. Shukla, M. Manjunath, B.S. Gadkari, S.C. Tags: X-ray imaging micro-tomography synchrotron imaging polyurethane foam gamma irradiation morphological image analysis cellular microstructure – property relation synchrotron X-ray micro-tomography research papers Source Type: research