|About this Abstract
||Materials Science & Technology 2019
||Late News Poster Session
||P3-56: Three-dimensional Quantitative Characterization on Binder-jet Printed Powder Systems
||Chuyuan Zheng, Amir Mostafaei, Pierangeli Rodriguez, Markus Chmielus, Ian Nettleship
|On-Site Speaker (Planned)
Traditional quantitative stereology is usually taken on a 2D plane of a sectioned sample. The premise of such strategy is to assume the features measured are isotropic and distributed evenly throughout the sample, which is not the case in binder-jet printed systems. Also, limitations of field measurements and the incompetency of measuring topological parameters hinder the discovery of process-structure relationship of such systems. In this study microCT was used to obtain 3D microstructures of as-printed and consolidated materials. Density variations through sections revealed the periodic interlayer defects introduced during printing, and 3D topological parameters was reported to describe the microstructure evolution during sintering. The utilization of microCT demonstrated the capability of supervising the microstructure evolution through the entire printing-consolidation process, and the exponentially increased information density in 3D datasets opened up possibilities of process-structure-property relationship mining using computer vision methods.