Scientific Program

All times are based on UTC +2 resp. CEST.

Back to overview

Lecture

Application of Material Informatics for Tailoring Porous Ceramics: A Machine Learning Approach

Wednesday (07.10.2020)
16:20 - 16:40 Room 3
Part of:


Characterization of porous ceramics can be performed using automated data analysis and machine learning approaches. Automated 3-Dimensional analysis of microstructure using a robust algorithm can quantify detailed geometrical properties of porous ceramics in a shorter time compared to manual techniques. Machine learning model is trained with extracted data from different porous structure, and analysis of the structural differences, to generate optimal design parameter of pores. The porous samples may be tailored based on extracted information. Therefore, the fabrication of tailored porous structures will accurately comply with the demands in dedicated applications in medicine, energy, environment, chemical, and space technology. The present work aims at developing highly automated computational and visualization tools that lead to a quantitative assessment of the morphological properties of porous materials. Special computer algorithms are developed to characterize critical morphological parameters of porous samples in detail. Various alumina-based ceramic samples were manufactured and investigated. Geometrical properties such as pore size distribution and connectivity, aspect ratios and percolation coefficients were evaluated. The algorithm developed in this work is fed by two robust analytical techniques, micro-tomography and magnetic resonance imaging. The use of the aforementioned imaging techniques allows calibrating the computer-based algorithm from micro- to cm-scale within this resolution. Accordingly, the algorithm analyzes samples with various scales and pore sizes. The exquisite outcome of this computer-based approach is consideration of hydrodynamic properties of porous ceramics, i.e., such as tortuosity and diffusion coefficients.

Speaker:
Md Nurul Karim
University of Bremen
Additional Authors:
  • Mojtaba Mirdrikvand
    University of Bremen, Department of Chemistry.
  • Dr. Kamen Tushtev
    Universität Bremen, Advanced Ceramics
  • Prof. Dr. Gabriel Zachmann
    University of Bremen, Department for Computer Science.
  • Dr. Wolfgang Dreher
    University of Bremen, Department of Chemistry.
  • Prof. Dr. Kurosch Rezwan
    University of Bremen,MAPEX Center for Materials and Processes

Dateien

Category Short file description File description File Size
Presentation Abstract of Presentation This is the abstract of the presentation in .docx format. 67 KB Download