Classifying coke using CT scans and landmark multidimensional scaling
Keith Nesbitt
Fayeem Aziz
Merrick Mahoney
Stephan Chalup
Bishnu P.Lamichhane
School of Information and Physical Sciences,University of Newcastle,Callaghan,NSW,Australia
摘要：One factor that limits development of fundamental research on the influence of coke microstructure on its strength is the difficulty in quantifying the way that microstructure is both classified and distributed in three dimensions.To support such fundamental studies,this study evaluated a novel volumetric approach for classifying small(approx.450 pm3)blocks of coke microstructure from 3D computed tomography scans.An automated process for classifying microstructure blocks was described.It is based on Landmark Multi-Dimensional Scaling and uses the Bhattacharyya metric and k-means clustering.The approach was evaluated using 27 coke samples across a range of coke with different properties and reliably identified 6 ordered class of coke microstructure based on the distribution of voxel intensities associated with structural density.The lower class(1-2)subblocks tend to be dominated by pores and thin walls.Typically,there is an increase in wall thickness and reduced pore sizes in the higher classes.Inert features are also likely to be seen in higher classes(5-6).In general,this approach provides an efficient automated means for identifying the 3D spatial distribution of microstructure in CT scans of coke.
机标关键词：dimensionlandmarkscalingsionamulticlassifyingcokescans
论文发表日期：2023-02-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：13( 160-172 )
英文信息