Počet záznamů: 1

Ceramo-metallic materials of the Ti-B-C and Ti-B-N systems

  1. 1.
    0370101 - UFP-V 2012 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
    Brožek, V. - Doležal, J. - Novák, M. - Ctibor, Pavel - Kolman, Blahoslav Jan
    Ceramo-metallic materials of the Ti-B-C and Ti-B-N systems.
    METAL 2011 Conference Proceedings - Papers. Ostrava: Tanger s.r.o., 2011, s. 1085-1090. ISBN 978-80-87294-24-6.
    [Anniversary International Conference on Metallurgy and Materials METAL 2011/20th./. Brno (CZ), 18.05.2011-20.05.2011]
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: Hot pressing * reactive sintering * titanium boride * titanium nitride * boron carbide * plasma spraying
    Kód oboru RIV: CA - Anorganická chemie

    Products prepared by the sintering of titanium and boron carbide powder and by the sintering of titanium and boron nitride powder were studied. The sintering was performed at 2,000 °C under the pressure of 6 GPa in a high-pressure apparatus of BELT-type with sufficient holding time to reach thermodynamic equilibrium. The results of chemical and phase composition analyses were compared with thermodynamic prediction of possible reactions in the system. We proved the preferential formation of borides TiB and TiB2 prior to the carbides or nitrides formation. The products, which may be considered Ti-(TiB,TiB2)-TiN or Ti-(TiB,TiB2)-TiC cermets, were analysed in order to determine their microstructure, phase and chemical composition and their influence on mechanical properties such as hardness or elastic modulus. This work precedes similar study which will be performed using the same powders processed by plasma spraying, which enables to stabilize high-temperature phases by rapid cooling.
    Trvalý link: http://hdl.handle.net/11104/0006769