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S12: Materials for Extreme Environments: Ultrahigh Temperature Ceramics (UHTCs) and Nano-laminated Ternary Carbides and Nitrides (MAX Phases)

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Ultrahigh temperature ceramics (UHTCs) and nano-laminated ternary carbides and nitrides (MAX phases) are potential materials for use in extreme environments such as scramjet engine components, leading edges and thermal protection systems for hypersonic vehicles, and cladding materials in generation IV nuclear reactors. However, their thermal/chemical stability in extreme environments, the ability to be formed into complex shapes/ sharp edges, thermal shock resistance, irradiation resistance, and damage tolerance are all critical challenges limiting near-term industrial applications of these materials. For such extreme environment applications, new advances in understanding structure-property relations and improved performance are needed. These will require development of new approaches for improving thermal shock resistance, thermochemical stability, damage tolerance and machinability, as well as discovery of new materials to ensure an enormous leap forward in performance. This symposium will focus on design, processing, structure-property relationships, thermal and mechanical properties, oxidation resistance, machining and joining, and stability of UHTCs and MAX phases both from fundamental and application-oriented perspectives.


Proposed Session Topics


• New precursors for powders, coatings, and matrix or fibers of composites


• Structure-property relationships of existing systems


• Materials design, new composition and composites


• Novel processing methods (bulk, coatings, and thin films)


• Novel characterization methods and lifetime assessment


• Methods for improving damage tolerance, oxidation and thermal shock resistance


• New methods for joining and machining of components


• Structural stability under extreme environments (irradiation, ultra-high temperature)



Symposium Organizers


• Yanchun Zhou, Aerospace Research Institute of Material & Processing Technology, China; yczhou@imr.ac.cn, yczhou714@gmail.com


• Jon Binner, University of Birmingham, UK


• Erica L. Corral, University of Arizona, USA


• Per Eklund, Linköping University, Sweden


• William G. Fahrenholtz, Missouri University of Science and Technology, USA


• Greg Hilmas, Missouri University of Science and Technology, USA


• Sea-Hoon Lee, KoreaInstituteof MaterialsScience, Korea


• Frederic. Monteverde, Institute of Science and Technology of Ceramics- CNR, Italy


• Miladin Radovic, Texas A&M University, USA


• Jochen Schneider, Materials Chemistry, RWTH Aachen, Aachen, Germany


• Luc J Vandeperre, Imperial College London, UK


• Guo-Jun Zhang, Shanghai Institute of Ceramics, CAS, China


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