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SYMPOSIUM 9: Interfaces in Microstructural Evolution: Structure, Properties, Anisotropy, and Motion



The structure of interfaces plays a key role in the processing and performance of functional ceramics, such as sensors, ferroelectric actuators, dielectrics and ion conductors. Possible influences on processing and microstructure arise due to the boundary structure, local defect redistribution, space charges, mechanical stresses and the anisotropy of transport processes at interfaces. These effects and their interplay with the materials properties need to be understood on a fundamental level in order to optimize a material for a given application.


This symposium covers basic science topics on all aspects of interfaces, microstructure evolution, thermodynamics and their relationship to the materials properties in functional ceramics. The focus is on functional electronic ceramics, but other all classes of materials are considered as well.



Proposed sessions

  • Interface structure and anisotropy

            -Atomic structure, segregation and stoichiometry

            -Grain boundary transitions

            -Mechanisms of interface motion

  • Interface properties

            -Defects and space charge

            -Diffusion and transport along and across interfaces

            -Mechanical properties

  • Sintering and grain growth

           -Conventional sintering and field assisted sintering

           -Grain growth and abnormal grain growth

           -Effects of nonstoichiometry

           -Simulation of microstructural evolution

           -Anisotropy of interfacial energy and motion



Wolfgang Rheinheimer, Karlsruhe Institute of Technology, Germany, Wolfgang.Rheinheimer@kit.edu

Michael Hoffmann, Karlsruhe Institute of Technology, Germany

John Blendell, Purdue University



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