Show simple item record

Novi način formiranja kompozitnih prevlaka

dc.creatorStevanović, Jasmina
dc.creatorJugović, Branimir
dc.creatorMarinović, Vedrana M.
dc.creatorMaksimović, Miodrag D.
dc.date.accessioned2019-01-30T17:12:19Z
dc.date.available2019-01-30T17:12:19Z
dc.date.issued2004
dc.identifier.issn0351-9465
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/157
dc.description.abstractNi/WC and Cu/WC composite coatings were obtained in two steps. The first step consists of the inert WC particles deposition from the aqueous solution onto steel surface by means of a micro-pipette and covering by the dilute aqueous Nafion solution. The second step is the electrochemical metal deposition from commercial baths in constant current regimes. As result, compact composite coatings were obtained with the different amounts of WC in the deposit in the entire range between a part of a percent up to a few tenths of the percent. The new two-steps method for the formation of the composite coatings renders a very homogeneous distribution of inert WC particles in the deposit and exactly defined chemical composition in each part of the coating Several advantages of splitting the process into two steps are found: the electrolyte for the metal deposition stays clean, no stirring is necessary and it is possible to deposit homogeneously large particles at desired parts of the surface. It is also possible to form multi-layer composite deposits as well as composite foils.en
dc.description.abstractKompozitne prevlake nikal-volframkarbid Ni/WC i bakar-volframkarbid Cu/WC dobijene su iz dva stupnja. Prvi stupanj obuhvata nanošenje inertnih čestica volframkarbida (WC) iz vodenog rastvora mikropipetom na čeličnu površinu. Preko nanetih čestica sipan je razblažen vodeni rastvor nafiona. Drugi stupanj predstavlja elektrohemijsko taloženje metala iz komercijalnih elektrolita pri konstantnom strujnom režimu. Kao rezultat dobijene su kompaktne kompozitne prevlake, gde je količinu WC moguće menjati od dela procenta do nekoliko desetina procenata. Korišćenjem dvostepenog formiranja kompozitnih prevlaka dobija se homogena raspodela inertnih čestica u prevlaci i tačno definisan hemijski sastav u svakom delu prevlake. Prednost ovakvog formiranja kompozitnih materijala je velika, jer ne dolazi do prljanja elektrolita za taloženje osnovnog metala, nije potrebno nikakvo mešanje elektrolita, a moguće je ugraditi velike i teške čestice i to na tačno definisanim mestima na površini. Takođe, moguće je formirati i višeslojne kompozitne prevlake, kao i kompozitne folije.sr
dc.publisherEngineering Society for Corrosion, Belgrade, Serbia
dc.rightsopenAccess
dc.sourceZaštita materijala
dc.titleNew method of Ni/WC and Cu/WC composite coatings formationen
dc.titleNovi način formiranja kompozitnih prevlakasr
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractМариновић, Ведрана М.; Максимовић, Миодраг Д.; Стевановић, Јасмина; Југовић, Бранимир З.; Нови начин формирања композитних превлака; Нови начин формирања композитних превлака;
dc.citation.volume45
dc.citation.issue4
dc.citation.spage179
dc.citation.epage184
dc.citation.other45(4): 179-184
dc.identifier.rcubConv_64
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/8030/155.pdf
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record