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Plasma Spraying of Zirconium Carbide – Hafnium Carbide – Tungsten Cermets
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SYSNO ASEP 0336074 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Plasma Spraying of Zirconium Carbide – Hafnium Carbide – Tungsten Cermets Překlad názvu Plazmové nastřiky cermetu wolfram - karbid zirkonia a wolfram - karbid hafnia Tvůrce(i) Brožek, Vlastimil (UFP-V) RID
Ctibor, Pavel (UFP-V) RID, ORCID
Cheong, D.-I. (KR)
Yang, S.-H. (KR)Zdroj.dok. 17 Plansee Seminar 2009 International Conference onHigh Performance P/M Materials, 3. - Reutte : PlanseeGroup, 2009 - ISBN N Rozsah stran s. 1-3 Poč.str. 3 s. Akce Plansee Seminar on High Performance PM Materials /17th./ Datum konání 25.05.2009-29.05.2009 Místo konání Reutte Země AT - Rakousko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. AT - Rakousko Klíč. slova Hafnium carbide ; zirconium carbide ; tungsten cermets ; plasma spraying ; water stabilized plasma Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEZ AV0Z20430508 - UFP-V (2005-2011) Anotace Preparation of coatings and self-standing parts from materials with the highest melting points is allowed only by limited number of techniques. Plasma torch WSP® with exit nozzle plasma temperature about 30 000 K, operating at 150 kW, enables treatment of such refractories with extreme melting points in amount of tens of kilograms per hour [1]. A mixture of the W powder was prepared with 10 vol. % to 20 vol. % of ZrC or HfC. This feedstock having spheroidal character and micrometric size was fed into the plasma of the water stabilized plasma torch (WSP®) by means of inert gas carrying. Coatings thick up to 2 mm were sprayed on various substrates, namely graphite. Self-standing bodies were obtained by substrate removal. Pure tungsten and pure zirconium carbide were sprayed at similar conditions. Various ways of coating improvement by shrouding and sample controlled cooling were tested. XRD, XRF, mercury porosimetry, dilatometry and various microscopic structural technique Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2010
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