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Symposium CF
High and Ultra-High Temperature Ceramics for Extreme Environments
Advisory Board
Invited Lectures


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 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. 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

CF-1 Synthesis and processing

  • Powder synthesis
  • Production of nano-powders, coatings, and engineered architectures
  • Carbothermal and borothermal reduction
  • Polymer derived ceramics and solution synthesis routes
  • Shape forming methods such as pressing, tape casting, etc.
  • Net shape forming and rapid prototyping
  • Densification kinetics
  • Pressureless sintering
  • Spark plasma sintering
  • Directionally solidified eutectics
  • In-situ reaction synthesis

CF-2 Corrosion, oxidation, and testing

  • Thermodynamic modelling and computational tools
  • 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

CF-3 Mechanical and thermal properties

  • Strength and fracture toughness
  • 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
  • Ab-initio calculations and other predictive tools

CF-4 Characterization and analysis

  • Advanced characterization methods
  • In-situ characterization under extreme conditions
  • Electron microscopy and high resolution imaging
  • Emerging characterization tools for structural materialsv
  • Spectroscopic methods
  • Thermodynamic and kinetic studies


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