Journal
SURFACE & COATINGS TECHNOLOGY
Volume 300, Issue -, Pages 19-24Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2016.05.035
Keywords
a-C:H:Me coating; Multilayer coating; Graphite substrate
Funding
- [INNOTECH - K2/IN2/9/181851/NCBR/13]
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The W/a-C:H:Zr and W/a-C:H:W multilayer coatings were prepared on a porous graphite substrate by hybrid method combines of arc evaporation and electron beam evaporation processes (Arc-EB). The tungsten interlayer was deposited first to enhance coating adhesion. Phase composition of coatings was examined by Raman spectroscopy and X-ray diffraction. The measurement of hardness and Young's modulus has indicated a significant increase in mechanical properties after the deposition of upper layer. Microstructure was investigated by SEM and TEM revealing columnar morphology and lack of porosity in both samples. The a-C:H:Zr coating was characterized by lower wettability by liquid copper than a-C:H:W coating and pure tungsten interlayer. (C) 2016 Elsevier B.V. All rights reserved.
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