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http://hdl.handle.net/10773/18292| Title: | Copper wettability on tungsten carbide surfaces |
| Author: | Silva, V.L. Fernandes, C.M. Senos, A.M.R. |
| Keywords: | Wettability Copper Tungstencarbide Hardmetal |
| Issue Date: | 2016 |
| Publisher: | Elsevier |
| Abstract: | The wettingbehaviorofcopperontungstencarbidesurfaceswasinvestigatedthroughthesessiledropmethod,at1080 1C, invacuum atmosphere. Testswereperformedonthreedifferenttypesofsubstrates:(i)commercialsampleofWCCowith3.5wt%ofcobalt;(ii)WCthin film sputterdepositedontheaforementionedcommercialWCCosampleand(iii)WCsampleprocessedbyhotpressing.Thelowest final contact anglewasachievedontheWCCosurface(61), followedbythoseofWCthin film (131) andWC(251). Thecontactanglevalueswere inversely correlatedwiththewettingbehavior,i.e.thehighestwettabilitywasfoundfortheWCCoandthelowestfortheWCsurfaces. Structural, microstructuralandelementalcharacterizationsoftheinterfaceregionbetweenthemoltencopperandthesubstratewereperformed, using lowangleXraydiffractionandscanningelectronmicroscopycoupledwithenergydispersivespectroscopy(SEM/EDS).Thewettability behavior wasdiscussedtakingintoconsiderationtheeffectofminorphases,suchascobalt. |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/18292 |
| DOI: | 10.1016/j.ceramint.2015.09.050 |
| ISSN: | 0272-8842 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Copper wettability on tungsten carbide surfaces_10.1016j.ceramint.2015.09.050.pdf | 1.2 MB | Adobe PDF |  |
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