|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Nanocrystalline and Ultra-fine Grain Materials and Bulk Metallic Glasses
||High-Pressure Torsion of Ceramics with Functional Properties
||Kaveh Edalati, Hadi Razavi-Khosroshahi, Masayoshi Fuji, Zenji Horita
|On-Site Speaker (Planned)
Ceramics are considered as brittle materials at ambient temperature and can hardly be deformed. This study shows that plastic strain can be successfully imposed at room temperature on different ceramic materials such as Al2O3, ZrO2, TiO2, Y2O3, BaTiO3 and WC by application of high-pressure torsion (HPT) method. Several features are observed after HPT processing: formation of different kinds of lattice defects such as dislocations and oxygen vacancies, formation of nanograins, occurrence of phase transformations and improvement of functional properties for energy applications.
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