Abstract

Drying processes in porous materials and their optimization are of interest in research and in many industrial applications. X-ray micro-computed tomography presents a versatile instrument for the experimental investigation of those processes in three-dimensional on a microscopic level. In this review article, the basic principles of the technique shall be elucidated and an overview of the existing literature shall be given. Published studies performed with laboratory-based tomography setups and at synchrotrons are included alike. Different experimental workflows and their limitations with focus on the investigation of drying processes are considered, as well as the further usability of the obtained data and insights for the validation of analytical models and numerical simulations. The number of publications on this topic has greatly increased in the early 2000s and there is still research demand.

摘要

多孔材料中的干燥过程及其优化在研究和许多工业应用中都引起了人们的兴趣。X 射线微计算机断层扫描提供了一种多功能仪器，用于在微观水平上对这些过程进行三维实验研究。在这篇评论文章中，应阐明该技术的基本原理，并对现有文献进行概述。已发表的使用基于实验室的断层扫描装置和同步加速器进行的研究也包括在内。考虑了不同的实验工作流程及其以研究干燥过程为重点的局限性，以及所获得数据的进一步可用性和对分析模型和数值模拟验证的见解。