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Author Simonenko, E. P. ♦ Simonenko, N. P. ♦ Ezhov, Yu. S. ♦ Sevastyanov, V. G. ♦ Kuznetsov, N. T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CARBON SOURCES ♦ CARBONIZATION ♦ CRYSTALS ♦ DRYING ♦ HYDROLYSIS ♦ NANOSTRUCTURES ♦ OXIDATION ♦ PARTICLE SIZE ♦ POLYMERS ♦ REFRACTORIES ♦ SOL-GEL PROCESS ♦ SYNTHESIS ♦ TANTALUM OXIDES ♦ TEMPERATURE DEPENDENCE ♦ ZIRCONIUM CARBIDES ♦ ZIRCONIUM OXIDES
Abstract The synthesis conditions of refractory tantalum–zirconium carbide Ta{sub 0.8}Zr{sub 0.2}C on the basis of Ta{sub 2}O{sub 5}–ZrO{sub 2}–C ultrafine initial blend prepared via the sol–gel method are explored. The initial blend is prepared via hydrolysis in the presence of Ta(OC{sub 5}H{sub 11}){sub 5} and [Zr(O{sub 2}C{sub 5}H{sub 7}){sub 4–x}(OC{sub 5}H{sub 11}){sub x}] carbon source polymer solutions, gel drying, and carbonization at a temperature of 450°C. A series of the carbothermal synthesis experiments is implemented at various temperatures and exposure times. The synthesis conditions are shown to affect not only the phase composition of products but also their oxidation resistance related to the particle size.
ISSN 10637788
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-12-15
Publisher Place United States
Journal Physics of Atomic Nuclei
Volume Number 78
Issue Number 12


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