Studies of the tribological and mechanical properties of laminated CrC–SiC coatings produced by r.f. and d.c. sputtering
| العنوان: | Studies of the tribological and mechanical properties of laminated CrC–SiC coatings produced by r.f. and d.c. sputtering |
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| المؤلفون: | Ziegele, H., Rebholz, Claus, Voevodin, A. A., Leyland, A., Rohde, S. L., Matthews, A. |
| المساهمون: | Publica |
| المصدر: | Scopus-Elsevier Tribology International |
| بيانات النشر: | Elsevier BV, 1997. |
| سنة النشر: | 1997 |
| مصطلحات موضوعية: | Morphology, Tribology, Materials science, Kohlenstoff, Scanning electron microscope, mechanische Schichtcharakterisierung, engineering.material, Indentation hardness, Keramik, Radio frequency sputtering, chemistry.chemical_compound, Laminates, Coating, Hardness, Sputtering, Forensic engineering, Composite material, Glow discharge, Auger electron spectroscopy, Protective coatings, Direct current sputtering, Glow discharge optical spectroscopy (GDOS), Mechanical Engineering, Laminated coatings, Mechanical testing, Surfaces and Interfaces, Sputter deposition, Surfaces, Coatings and Films, Wear of materials, PVD, Multilayers, chemistry, Korrosion, Mechanics of Materials, Adhesion, engineering, Verschleiß, Reibung, Scanning electron microscopy, Chromium carbide |
| الوصف: | Multilayer CrC-SiC coatings were produced by both direct current and radio frequency sputtering of Cr and Si targets in an Ar-C2H2 atmosphere. Coatings of constant thickness of about 4 μm, but with the number of layers varying between two and 200, were prepared and studied. Investigations of coating morphology were performed by scanning elecron microscopy (SEM), and coating composition was investigated using Glow Discharge Optical Spectroscopy (GDOS) and Auger Electron Spectroscopy (AES). Microhardness measurements, scratch adhesion, pin on disc, ASTM rubber wheel and impact wear tests were performed and the results were related to the individual layer thicknesses. It is shown that the improvement observed in hardness tests does not necessarily result in the improvement of other mechanical properties, e.g. adhesion and toughness. When two comparatively hard materials are combined in a multilayer coating, the result can be an increase in brittleness due to an absence of plastic release mechanisms for dislocation accumulation at layer boundaries. Thus, it is necessary to seek a compromise in the hardness of multilayer films in order to achieve optimal behaviour across a range of different surface contact conditions. © 1998 Elsevier Science Ltd. All rights reserved. 30 845 856 845-856 |
| تدمد: | 0301-679X |
| DOI: | 10.1016/s0301-679x(97)00059-5 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a886f1e098f50e522b4097a4a6f8841 https://doi.org/10.1016/s0301-679x(97)00059-5 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....4a886f1e098f50e522b4097a4a6f8841 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 0301679X |
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| DOI: | 10.1016/s0301-679x(97)00059-5 |