DOI: 10.1016/j.earscirev.2020.103406
论文题名: Current developments and applications of micro-CT for the 3D analysis of multiphase mineral systems in geometallurgy
作者: Wang Y. ; Miller J.D.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2020
卷: 211 语种: 英语
中文关键词: Image processing
; Image reconstruction
; Metallurgy
; Micro-CT
; Mineral processing
; Segmentation
英文关键词: image processing
; metallurgy
; mineralogy
; qualitative analysis
; quantitative analysis
; reconstruction
; segmentation
; three-dimensional modeling
; tomography
英文摘要: The use of X-ray micro computed tomography (X-ray micro-CT) for three-dimensional (3D) characterization of multiphase systems continues to increase in metallurgical research. In recent years, a number of technical developments in X-ray sources and X-ray imaging arrays have broadened the utility of micro-CT. Here, the authors review the current state-of-the-art tomographic techniques for both qualitative and quantitative geometallurgical characterization. This review first considers the basic principles of tomography and commonly used tomographic systems. The advantages and disadvantages (shortcomings) of micro-CT are discussed. Software development, including current image reconstruction algorithms, such as traditional weighted back projection and iterative reconstruction algorithms, as well as image segmentation tasks, are then discussed for processing 3D images and conducting quantitative analysis. Based on the development of hardware and software, applications involved in geometallurgy and minerals engineering are then thoroughly discussed. Specifically, applications include the determination of microstructure such as particle size, shape, and damage, as well as porosity and pore network structure of packed particle beds. In this way, the permeability, mineral composition, coal washability, mineral liberation, and exposed grain surface area can be determined. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166294
Appears in Collections: 气候变化与战略
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作者单位: Department of Mining and Minerals Engineering, Virginia Tech, 400 Stanger St, Blacksburg, VA 24061, United States; Department of Materials Science and Engineering, College of Mines & Earth Sciences, University of Utah, 135 South 1460 East, SLC, UT 84112, United States
Recommended Citation:
Wang Y.,Miller J.D.. Current developments and applications of micro-CT for the 3D analysis of multiphase mineral systems in geometallurgy[J]. Earth Science Reviews,2020-01-01,211