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https://hdl.handle.net/2440/78764
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Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Xu, J. | - |
dc.contributor.author | Mao, X. | - |
dc.contributor.author | Xie, Z. | - |
dc.contributor.author | Munroe, P. | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Journal of Physics D: Applied Physics, 2013; 46(6):1-16 | - |
dc.identifier.issn | 0022-3727 | - |
dc.identifier.issn | 1361-6463 | - |
dc.identifier.uri | http://hdl.handle.net/2440/78764 | - |
dc.description.abstract | In this study, novel nanocrystalline molybdenum silicide coatings with differing Al contents were deposited on a commercial titanium substrate using a double-cathode glow discharge apparatus. Their microstructures were characterized by x-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy. These coatings mainly consisted of MoSi₂ and Mo₅Si₃ phases; the ratio of Mo₅Si₃ to MoSi₂ gradually increased from the surface towards the interior of coatings, forming a graded structure. With the increase in Al content, the hardness and elastic modulus of the coatings slightly decreased, but the ratios of H/E and 1/E²H, as well as damage tolerance, increased. Furthermore, these newly developed coatings showed excellent wear resistance; their specific wear rates were not only considerably lower than that of the monolithic MoSi₂ coating, but also decreased with increasing Al content. The plan and cross-sectional views of the worn surfaces and wear debris were analysed using SEM and energy dispersive x-ray spectroscopy. The relationships between coating structure, mechanical property and wear mechanism were then clarified, which will help in designing hard, tough and wear-resistant coatings for applications involving severe loading conditions. | - |
dc.description.statementofresponsibility | Jiang Xu, XiangZhen Mao, Zong-Han Xie and Paul Munroe | - |
dc.language.iso | en | - |
dc.publisher | IOP Publishing Ltd | - |
dc.rights | © 2013 IOP Publishing Ltd. | - |
dc.source.uri | http://dx.doi.org/10.1088/0022-3727/46/6/065304 | - |
dc.subject | Surfaces, interfaces and thin films | - |
dc.subject | Condensed matter: structural, mechanical & thermal | - |
dc.subject | Nanoscale science and low-D systems | - |
dc.title | Connecting structural, mechanical and tribological characteristics of Al alloyed nanocrystalline molybdenum silicide coatings | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1088/0022-3727/46/6/065304 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest Mechanical Engineering conference papers |
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