About: Tungsten coatings and free standing parts

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Tungsten powders, 20 – 100 µm in size, were melted in the jet of thermal plasma generated by a water-stabilized spray system WSP. The molten tungsten was deposited on steel and graphite or boron nitride substrates, whereas the spray-ability itself was tested as well as cohesion with other substrates. One of the goals of this experimentation was to gain skills for covering variously shaped walls of nuclear fusion devices (Tokamaks). Also spraying of free-standing tungsten bodies was realized, by means of substrates easily machainable-out after deposition, as graphite and BN. Other option consists of covering a tungsten mesh or plates armored with tungsten wires. Protection of tungsten against oxidation in the plasma jet was a problem to be solved – the best results were gained with shroud gas, Ar with 7% hydrogen, and simultaneous placement of the substrates into graphite cells. The whole spray process was maintained to avoid temperatures over 700°C at which the oxidation is Tungsten powders, 20 – 100 µm in size, were melted in the jet of thermal plasma generated by a water-stabilized spray system WSP. The molten tungsten was deposited on steel and graphite or boron nitride substrates, whereas the spray-ability itself was tested as well as cohesion with other substrates. One of the goals of this experimentation was to gain skills for covering variously shaped walls of nuclear fusion devices (Tokamaks). Also spraying of free-standing tungsten bodies was realized, by means of substrates easily machainable-out after deposition, as graphite and BN. Other option consists of covering a tungsten mesh or plates armored with tungsten wires. Protection of tungsten against oxidation in the plasma jet was a problem to be solved – the best results were gained with shroud gas, Ar with 7% hydrogen, and simultaneous placement of the substrates into graphite cells. The whole spray process was maintained to avoid temperatures over 700°C at which the oxidation is (en)
Title	Tungsten coatings and free standing parts Tungsten coatings and free standing parts (en)
skos:prefLabel	Tungsten coatings and free standing parts Tungsten coatings and free standing parts (en)
skos:notation	RIV/61389021:_____/13:00396005!RIV14-AV0-61389021
http://linked.open...avai/predkladatel	Ústav fyziky plazmatu AVČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/12/1872)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Matějíček, Jiří Mušálek, Radek Ctibor, Pavel Brožek, Vlastimil
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky plazmatu AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	112019
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/13:00396005
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	tungsten coatings; tungsten filters; plasma spraying; shrouding; tungsten plasma spraying; protection against oxidation (en)
http://linked.open.../riv/klicoveSlovo	shrouding protection against oxidation tungsten coatings tungsten filters tungsten plasma spraying plasma spraying
http://linked.open...ontrolniKodProRIV	[1C4A2D44DA27]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	METAL 2013 Conference Proceedings: 22nd International Conference on Metallurgy and Materials
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Complex functionally graded materials
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Brožek, Vlastimil Ctibor, Pavel Matějíček, Jiří Mušálek, Radek Weiss, Z.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-05-15 (xsd:date)
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tanger spol. s r.o
https://schema.org/isbn	978-80-87294-39-0

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