Synthesis and study of high-entropy ceramics based on the carbides of refractory metals

International Conference on Synthesis and Consolidation of Powder Materials

Sedegov, A.^1 ; Vorotilo, S.^1 ; Tsybulin, V.^1 ; Kuskov, K.^1 ; Moscovskikh, D.^1

National University of Science and Technology, MISIS, Leninskii 4, Moscow

119049, Russia^1

关键词: Bulk samples;    Mechanical synthesis;    Mechanical treatments;    Microstructure and mechanical properties;    Reaction mixture;    Refractory elements;    Self propagating high temperature synthesis;    Single phase;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/558/1/012043/pdf
DOI  :  10.1088/1757-899X/558/1/012043

来源: IOP

【 摘 要 】

Production of single-phase carbide high entropy ceramic (Hf0.2Ta0.2Ti0.2Nb0.2Mo0.2 or Zr0.2,)C by self-propagating high-temperature synthesis (SHS) from a mechanically activated (MA) reaction mixtures and mechanical synthesized (MS) materials is discussed. The influence of mechanical treatment time at ball mill, on the formation of the phase of a high-entropy material is investigated. Spark plasma sintering and their structure, phase composition, obtained bulk samples and mechanical properties were studied. A self-propagating high-temperature synthesis of highentropic carbide based on refractory elements was also carried out. The microstructure and mechanical properties of high-entropy ceramics obtained by the methods of mechanical synthesis and SHS were compared.