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Designing Material with Structure Hierarchy at Various Length Scales

Author: Date:2018-12-20 Source:

Speaker: Farid Akhtar

Affiliation: Luleå University of Technology, Sweden

Date: Dec. 27th (Thursday), 2018

Time: 10:30 - 11:30 AM

Contact: Prof. Yong Zhang (drzhangy@ustb.edu.cn)

Location: 353 Main Building, USTB

Abstract: The microstructural design of materials is an important criterion to tailor the properties of materials. The hierarchical design of microstructures and control over the local chemical composition of materials give rise to far superior mechanical, physical and chemical properties compared to conventional materials. In this regard, recent developments on tailoring of macro meso nano structure and modification of local chemical composition in hierarchically structured materials and the influence on the evolution of properties will be presented. It will be shown that the design of hierarchical microstructures of metallic materials such as steels improve not only the room temperature properties but also the high temperature properties and expands the application criteria of stainless steels. The hierarchical design and tailoring of microporous ceramics at various length scales from macroscale to atomic scale will be discussed with a prospective to enhance their performance in applications in environment and energy sector. At the end, the concept of hierarchical design of materials will be presented for high entropy alloys and ceramics.

Speaker’s short biography: Associate Professor. Division of Materials Science, Luleå University of Technology, Sweden, E-mail: farid.akhtar@ltu.se. His research area includes synthesis and processing of porous materials for gas separation and storage and designing and tailoring of microstructure and properties of metallic, intermetallic and ceramic materials for high temperature applications.