Number of the records: 1  

Plasma spraying in enhanced gravitational field

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    SYSNO ASEP0103258
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitlePlasma spraying in enhanced gravitational field
    TitlePlazmové nástřiky ve zvýšeném gravitačním poli
    Author(s) Brožek, Vlastimil (UFP-V) RID
    Source TitleProceedings of the 14th Joint Seminar "Development of Materials Science in Research and Education". - Praha : MAXDORF,s.r.o, 2004 / Nitsch K. ; Rodová M. - ISBN 80-7345-032-1
    Pagess. 5-6
    Number of pages2 s.
    ActionDevelopment of Materials Science in Research and Education - DMS-RE 2004 /14./
    Event date31.08.2004-03.09.2004
    VEvent locationLednice
    CountryCZ - Czech Republic
    Event typeCST
    Languageeng - English
    CountryCZ - Czech Republic
    Keywordsplasma spraying, enhanced gravitational field, ceramic densification
    Subject RIVJH - Ceramics, Fire-Resistant Materials and Glass
    CEZAV0Z2043910 - UFP-V
    AnnotationPorosity – and thus density – of plasma sprayed materials can be influenced by kinetic parameters of the particles flying in the plasma jet. These parameters can be improved by increased gravity field. In an analogy to centrifugal casting, we have verified the possibility of plasma deposition on substrates placed on the inside perimeter of a centrifuge. A WSP® plasma generator with a 100 kW power was used. The calculated gravity acceleration was 307 ms-2, corresponding to a 30 MPa pressure on the substrate. Alternative method of ceramics densification, HIPping at 150 MPa, reduces porosity to below 5%. In our case, porosity of an alumina deposit was reduced from 8.74% to 7.82%.
    WorkplaceInstitute of Plasma Physics
    ContactVladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
    Year of Publishing2005
Number of the records: 1  

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