Počet záznamů: 1

Structure and properties of plasma sprayed BaTiO3 coatings

  1. 1.
    0347345 - UFP-V 2011 RIV GB eng J - Článek v odborném periodiku
    Ctibor, Pavel - Ageorges, H. - Sedláček, J. - Čtvrtlík, Radim
    Structure and properties of plasma sprayed BaTiO3 coatings.
    Ceramics International. Roč. 36, č. 7 (2010), s. 2155-2162 ISSN 0272-8842
    Grant CEP: GA AV ČR KAN301370701
    Výzkumný záměr: CEZ:AV0Z20430508; CEZ:AV0Z10100522
    Klíčová slova: Cermet * plasma spraying * microstructure * elastic modulus * wear resistance
    Kód oboru RIV: JH - Keramika, žáruvzdorné materiály a skla
    Impakt faktor: 1.471, rok: 2010

    Plasma spraying enables to create layers with thickness in a millimeter range adhering on various substrates. This paper provides a study of electric and mechanical properties of BaTiO3 coatings prepared by atmospheric plasma spraying. The spraying was carried out by a direct current gas-stabilized plasma gun. BaTiO3 was fed into the plasma jet as a feedstock powder prepared by a reactive sintering of micrometer-sized powders of BaCO3 and TiO2. Microstructure and phase composition are reported and discussed in connection with electric and mechanical properties. The ability of the used techniques to detect precisely the phase transformation temperatures of BaTiO3 plasma sprayed coatings is discussed as well. A depth-sensing indentation measurement was done between 290 and 520 K to provide local mechanical characterization. The elastic modulus has shown slightly higher values than that reported typically in papers focused on BaTiO3 ferroelectric thin films.
    Trvalý link: http://hdl.handle.net/11104/0188143