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Symposium CD
High and Ultra High Temperature Ceramics and Composites for Extreme Environments

Convener:
William G. FAHRENHOLTZ, Missouri University of Science and Technology, USA
 
Members:
Marianne BALAT-PICHELIN, PROMES-CNRS Odeillo, France
José Daniel BIASOLI DE MELLO, Federal University of Uberlandia, Brazil
Jon BINNER, University of Birmingham, UK
Robert DANZER, University of Leoben, Austria
Gilbert FANTOZZI, INSA de Lyon, France
Mark GEE, National Physical Laboratory, UK
Stuart HAMPSHIRE, University of Limerick, Ireland
Hagen KLEMM, Fraunhofer IKTS, Germany
Peter KROLL, University of Texas, Arlington, USA
William LEE, Imperial College London, UK
Paul MAYRHOFER, TU Wien, Austria
Klaus G. NICKEL, Eberhard-Karls-University Tuebingen, Germany
Elizabeth J. OPILA, University of Virginia, USA
Tatiana PRIKHNA, Institute for Superhard Materials of NAS of Ukraine, Ukraine
Daniel RILEY, ANSTO, Australia
Pavol ŠAJGALÍK, Slovak Academy of Sciences, Slovakia
Diletta SCITI, ISTEC-CNR Faenza, Italy
Eric WUCHINA, Office of Naval Research, USA
Katsumi YOSHIDA, Tokyo Institute of Technology, Japan
José Daniel BIASOLI DE MELLO, Federal University of Uberlandia, Brazil
Donald BRENNER, North Carolina State University, USA
Burkard ESSER, German Aerospace Center, Germany
William G. FAHRENHOLTZ, Missouri University of Science and Technology, USA
Claudia GASPARRINI, Imperial College London, UK
Sam HUMPHRY-BAKER, Imperial College London, UK
Weon-Ju KIM, Korea Atomic Energy Research Institute, South Korea
Dietmar KOCH, University of Augsburg, Germany
Masaki KOTANI, Japan Aerospace Exploration Agency, Japan
Willy KUNZ, Fraunhofer-IKTS, Germany
Sea-Hoon LEE, Korea Institute of Materials Science, South Korea
Branko MATOVIC, University of Belgrade, Serbia
Elizabeth J. OPILA, University of Virginia, USA
Tatiana PRIKHNA, Institute for Superhard Materials of NAS of Ukraine, Ukraine
Claus Georg REBHOLZ, University of Cyprus, Cyprus
Francis REBILLAT, LCTS - Université de Bordeaux, France
Thomas REIMER, Deutsches Zentrum für Luft- und Raumfahrt, Germany
Stefano SANVITO, Trinity College Dublin, Ireland
Diletta SCITI, ISTEC-CNR, Italy
Laura SILVESTRONI, ISTEC-CNR, Italy
Peter TATARKO, Slovak Academy of Sciences, Slovak Republic
Vinothini VENKATCHALAM, University of Birmingham, UK
Katsumi YOSHIDA, Tokyo Institute of Technology, Japan
 
Revolutionary improvements in operating efficiency or performance characteristics require increasingly hostile operating environments. For example, handling of molten metals exposes materials to extreme temperatures, reducing conditions, and thermal shock. Other applications of interest include leading edges for hypersonic aerospace vehicles, flow-path components for advanced aerospace propulsion systems, refractories for steel, glass, and specialty metal processing, and many others. Ceramic materials and ceramic matrix composites are candidates for many applications that involve severe temperatures, chemical reactivity, or mechanical stresses. 
 
In recent years, a number of oxide and non-oxide ceramic materials have been investigated for use in extreme environments.  This symposium will examine the critical aspects in four different areas:  1) Synthesis and Processing; 2) Corrosion, Oxidation, and Testing; 3) Mechanical and Thermal Properties; and 4) Characterization, Analysis, and Simulation. The materials of interest comprise a wide range of ceramics including conventional oxide ceramics such as alumina and zirconia to more specialized compositions such as boride, carbide, and nitride materials. The materials of interest can be monolithic, single phase ceramics, porous materials, multi-phase particulate ceramics, or composites. Ternary carbide materials (i.e., the MAX phases) are the subject of a separate symposium and are excluded from this one.
 
Session Topics

CD-1 Synthesis and processing

New materials and novel synthesis routes
Production of nano-powders, coatings, and engineered architectures
Carbothermal and borothermal reduction
Polymer derived ceramics and solution synthesis routes
In-situ reaction synthesis
Shape forming methods such as pressing, tape casting, extrusion, etc.
Additive manufacturing and net shape forming
Densification kinetics
Pressureless and pressure-assisted sintering
Field assisted sintering and other advanced methods
Directionally solidified eutectics
Ultra-high temperature ceramic matrix composite

CD-2 Corrosion, oxidation, and testing

Analysis of reaction mechanisms and kinetics
Testing in simulated hypersonic flight conditions or other operational environments
Highly energetic reaction environments
Correlation of laboratory testing to application environments
Simulation and modelling of degradation reactions
Phase equilibria and thermodynamic tools
Non-equilibrium reaction analysis

CD-3 Mechanical, thermal and optical properties

Strength and fracture toughness
Friction and wear
Elevated temperature properties
Testing above 1600 °C
Finite element simulations and other models
Testing under combined loads (e.g., mechanical and electrical)
New test methods
Microstructure-property relationships

CD-4 Characterization, analysis, and simulation

Advanced characterization methods
In-situ and in-operando characterization under extreme conditions
Electron microscopy and high resolution imaging
Emerging characterization tools for structural materials
Spectroscopic methods
Thermodynamic and kinetic studies
Ab-initio calculations and other predictive tools
First principles simulations
Experimental and computational studies of phase equilibria
Multiscale simulations and models

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