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Materials Science at Oregon State University

Impedance Spectroscopy: What you NEED to know

Date: Thursday, Mar 1st
Presenter: Profs. Dave Cann and Burkan Isgor, OSU Materials Science


Impedance spectroscopy (IS) is an extremely versatile materials characterization technique that has been used for a wide range of materials and applications. This tutorial will cover the fundamentals of the four basic immittance functions, discuss the theoretical basis for the interpretation of IS data in some model systems, and provide an overview of common experimental techniques and analysis. Examples of the utilization of IS will be provided in solid state systems by Prof. Cann and electrochemical systems by Prof. Isgor.

DAVID P. CANN received a B.S. degree in Materials Engineering from the Virginia Polytechnic and State University in Blacksburg, VA in 1991. He received M.S. and Ph.D. degrees in Materials from the Pennsylvania State University in 1993 and 1997, respectively. In 1997, he joined the Materials Science and Engineering faculty at Iowa State University, in Ames, IA. In 2005, he joined Oregon State University, where he is now Professor of Materials Science He has served as an Editor for the Journal of Materials Science since 2006, overseeing the electronic ceramics technical area. Dr. Cann is the author or co-author of over 110 publications in peer reviewed journals and holds four patents.

Dr. Isgor’s research interests include materials science of cement and concrete, corrosion, electrochemistry, surface science, computational materials science, and non-destructive model-assisted testing of materials and structures. The ultimate goal of his research is to develop integrated numerical and sensory tools for infrastructure owners and operators so that they can better evaluate the state of their assets and make informed decisions on their future. These tools help engineers manage infrastructure by allowing them to schedule maintenance, rehabilitation and replacement operations more efficiently and accurately so that their assets will be resilient against extreme conditions imposed by multiple sources of hazard.

A Professional Engineer in the Province of Ontario, Dr. Isgor served as the Vice President of the Canadian Society for Civil Engineering (CSCE) between 2009 and 2011 and was in charge of the technical divisions of the Society. He is currently active in a number of professional societies including American Concrete Institute (ACI), National Association of Corrosion Engineers (NACE) and Electrochemical Society (ECS).