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New Findings on Applied Surface Science Described by Investigators at Silesian University (Characteristics of CrAlSiN plus DLC coating deposited by...

September 12, 2014



New Findings on Applied Surface Science Described by Investigators at Silesian University (Characteristics of CrAlSiN plus DLC coating deposited by lateral rotating cathode arc PVD and PACVD process)

By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Science are presented in a new report. According to news reporting from Katowice, Poland, by NewsRx journalists, research stated, "Coating system composed of CrAlSiN film covered by diamond-like carbon (DLC)-based lubricant, deposited on hot work tool steel substrate was the subject of the research. The CrAlSiN and DLC layers were deposited by PVD lateral rotating ARC-cathodes (LARC) and PACVD technology on the X40CrMoV5-1 respectively."

The news correspondents obtained a quote from the research from Silesian University, "HRTEM investigation shows an amorphous character of DLC layer. It was found that the tested CrAlSiN layer has a nanostructural character with fine crystallites while their average size is less than 10 nm. Based on the XRD pattern of the CrAlSiN, the occurrence of fcc phase was only observed in the coating, the texture direction < 3 1 1> is perpendicular to the sample surface. Combined SEM, AES and ToF-SIMS studies confirmed assumed chemical composition and layered structure of the coating. The chemical distribution of the elements inside the layers and at the interfaces was analyzed by SEM and AES methods. It was shown that additional CrN layer is present between substrate and CrAlSiN coating. The atomic concentration of the particular elements of DLC and CrAlSiN layer was calculated from the XPS measurements. In sliding dry friction conditions the friction coefficient for the investigated elements is set in the range between 0.05 and 0.07. The investigated coating reveals high wear resistance."

According to the news reporters, the research concluded: "The coating demonstrated a dense cross-sectional morphology as well as good adhesion to the substrate."

For more information on this research see: Characteristics of CrAlSiN plus DLC coating deposited by lateral rotating cathode arc PVD and PACVD process. Applied Surface Science, 2014;312():126-133. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)

Our news journalists report that additional information may be obtained by contacting K. Lukaszkowicz, Silesian University, A Chelkowski Inst Phys, PL-40007 Katowice, Poland. Additional authors for this research include J. Sondor, K. Balin and J. Kubacki (see also Science).

Keywords for this news article include: Katowice, Poland, Europe, Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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