Incorporation of tungsten metal fi bers in metal and ceramic matrix

0463144 - ÚFP 2017 HR eng A2 - Proceedings Abstract
Brožek, Vlastimil - Vokáč, M. - Kolísko, J. - Pokorný, P. - Kubatík, Tomáš František
Incorporation of tungsten metal fi bers in metal and ceramic matrix.
2016.
[International Symposium of Croatian Metallurgical Society/12./. 19.06.2016-23.06.2016, Šibenik]
Institutional support: RVO:61389021
Keywords : tungsten wires * tungsten fibers * plasma spraying * metallic coatings * ceramic coatings
Subject RIV: JI - Composite Materials
http://pubweb.carnet.hr/metalurg/symposium/shmd_2016_eng

Tungsten fibers have high tensile strength but a poor oxidation resistance at elevated temperatures. Using this first characteristics and prevent oxidation of tungsten armored composite materials in which the primary requirement reinforcement against destruction or deformation was studied on tungsten fibers and tungsten wires which were coated by applying the metal and ceramic powders by plasma spraying device in plasma generator WSP®. Deposition took place in an atmosphere of Ar + 7% H2, sufficient to reduce the oxidized trace amounts of tungsten. Short tungsten filaments were consolidated into the same matrix by Spark plasma sintering method at temperatures of 1400 – 1900°C and pressures up to 80 MPa.
Permanent Link: http://hdl.handle.net/11104/0262457