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Coatings, Volume 4, Issue 1

March 2014 - 10 articles

Cover Story: In this study, the microstructural details and tribological performances of Fe-based coatings (Fe–Cr–Ni–B–C and Fe–Cr–Ni–B–Mo–C) manufactured by HVOF thermal spray process are evaluated. Ni–Cr–Fe–Si–B–C and WC–CoCr coatings were chosen as references. Microstructural investigation reveals a high density and low oxide content for HVOF Fe-based coatings. Particle melting and rapid solidification resulted in a metastable austenitic phase with precipitates of mixed carbides and borides of chromium and iron which lead to remarkably high nanohardness. Tribological performances were evaluated by means of the ball on-disk dry sliding wear test, the rubber-wheel dry particle abrasion test, and the cavitation erosion wear test. A higher wear resistance validates Fe-based coatings as a future alternative to the more expensive and less environmentally friendly Ni-based alloys. View this paper.
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Articles (10)

  • Review
  • Open Access
50 Citations
15,878 Views
41 Pages

24 March 2014

Metalloid and metal based oxides are an almost unavoidable component in the majority of solar cell technologies used at the time of writing this review. Numerous studies have shown increases of ≥1% absolute in solar cell efficiency by simply substitu...

  • Article
  • Open Access
47 Citations
11,936 Views
18 Pages

Tribology and Micromechanics of Chromium Nitride Based Multilayer Coatings on Soft and Hard Substrates

  • Juergen M. Lackner,
  • Wolfgang Waldhauser,
  • Lukasz Major and
  • Marcin Kot

12 February 2014

The tribological protection of carbon fiber reinforced epoxy composites (CFC) is essential for broadening their use from structural to functional applications, e.g., to linear bearings in mechanical engineering. However, their wear resistance in slid...

  • Review
  • Open Access
117 Citations
10,735 Views
21 Pages

Biomedical Nanoparticles: Overview of Their Surface Immune-Compatibility

  • Olimpia Gamucci,
  • Alice Bertero,
  • Mariacristina Gagliardi and
  • Giuseppe Bardi

12 February 2014

Diagnostic- and therapeutic release-aimed nanoparticles require the highest degree of biocompatibility. Some physical and chemical characteristics of such nanomaterials are often at odds with this requirement. For instance, metals with specific featu...

  • Article
  • Open Access
64 Citations
12,752 Views
23 Pages

Microstructural Characteristics and Tribological Behavior of HVOF-Sprayed Novel Fe-Based Alloy Coatings

  • Andrea Milanti,
  • Heli Koivuluoto,
  • Petri Vuoristo,
  • Giovanni Bolelli,
  • Francesco Bozza and
  • Luca Lusvarghi

29 January 2014

Thermally-sprayed Fe-based coatings have shown their potential for use in wear applications due to their good tribological properties. In addition, these kinds of coatings have other advantages, e.g., cost efficiency and positive environmental aspect...

  • Review
  • Open Access
146 Citations
21,706 Views
25 Pages

21 January 2014

The capability to fabricate photovoltaic (PV) solar cells on a large scale and at a competitive price is a milestone waiting to be achieved. Currently, such a fabrication method is lacking because the effective methods are either difficult to scale u...

  • Article
  • Open Access
21 Citations
13,906 Views
13 Pages

21 January 2014

PEDOT:PSS electron-blocking layer, and PEDOT:PSS + P3HT:PCBM stacked layers are fabricated by ultrasonic atomization and characterized by scanning electron microscopy (SEM) and optical profilometry. The measured thicknesses based on SEM and optical p...

  • Review
  • Open Access
138 Citations
15,772 Views
23 Pages

17 January 2014

Bacterial surface fouling is problematic for a wide range of applications and industries, including, but not limited to medical devices (implants, replacement joints, stents, pacemakers), municipal infrastructure (pipes, wastewater treatment), food p...

  • Article
  • Open Access
73 Citations
13,211 Views
19 Pages

2 January 2014

Thermally-sprayed alumina based materials, e.g., alumina-titania (Al2O3-TiO2), are commonly applied as wear resistant coatings in industrial applications. Properties of the coatings depend on the spray process, powder morphology, and chemical composi...

  • Article
  • Open Access
10 Citations
7,855 Views
17 Pages

19 December 2013

We formulated a latex ink for ink-jet deposition of viable Gram-negative bacterium Gluconobacter oxydans as a model adhesive, thin, highly bio-reactive microstructured microbial coating. Control of G. oxydans latex-based ink viscosity by dilution wit...

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Coatings - ISSN 2079-6412Creative Common CC BY license