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  • Electro-codeposited Cr-SiC composite coatings : effect of the pulse-current frequency on morphology and hardness = Kompozitna prevleka iz elektronanesenega Cr-SiC : vpliv frekvence pulzirajočega toka na morfologijo in trdoto
    Sancakoğlu, Orkut ...
    In this research, submicrometer silicon-carbide (SiC) (APS = 200 nm) ceramic particles were co-deposited with chromium metal (Cr) via an electrodeposition system to fabricate Cr-SiC metal-matrix ... composite films. Phase identifications of the fabricated composite coatings were performed with an X-ray diffractometer (XRD) and surface morphologies were investigated using a scanning electron microscope (SEM) with an energy dispersive X-ray spectroscopy (EDS) system attachment. Mechanical properties of the coatings such as hardness were determined under an applied load of 980.7 mN using a micro-hardness tester. It was concluded that SiC ceramic particles were physically adsorbed on the cathode surface forming a composite film structure with Cr metal and that a co-deposition of the sub-micron-sized ceramic particles with metals via an electrodeposition system was successful. In addition, in comparison with the reference coatings, the hardness of the SiC-reinforced composite coatings was increased by up to 50 %. The frequency, being a parameter of pulse current, is determined as an effective parameter in a co-deposition of ceramic particles with metals.
    Source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 47, št. 5, sep.-okt. 2013, str. 601-604)
    Type of material - article, component part ; adult, serious
    Publish date - 2013
    Language - english
    COBISS.SI-ID - 1018794

    Link(s):

    http://mit.imt.si/Revija/

source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 47, št. 5, sep.-okt. 2013, str. 601-604)

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