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Coatings, Volume 5, Issue 3

September 2015 - 19 articles

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Cover Story: Diamond-like carbon coatings were deposited using a new direct ion deposition system with novel 360º ion source operating between 4 and 8 kV. Cross-sectional TEM images show that coatings have a three layered structure which originates from the deposition parameters. Varying structural growth conditions can be achieved by tailoring deposition parameters. The coatings show good promise for industrial use due to their high hardness, low friction and excellent adhesion to the surface of the samples. View this paper.

Articles (19)

  • Article
  • Open Access
11 Citations
6,915 Views
19 Pages

Effect of Microwave Cure on the Thermo-Mechanical Properties of Tung Oil-Based/Carbon Nanotube Composites

  • Madeline Smith,
  • Amanda Payne,
  • Kyle Edwards,
  • Steven Morris,
  • Brenda Beckler and
  • Rafael L. Quirino

17 September 2015

Tung oil is uniquely reactive among plant-based natural oils due to the series ofconjugated carbon-carbon double bonds in its fatty acid chains. These conjugatedcarbon-carbon double bonds impart a high reactivity towards cationic polymerization in th...

  • Article
  • Open Access
5 Citations
5,173 Views
12 Pages

11 September 2015

The photocatalyst composite coatings on alumina (Al2O3) balls had been prepared by mechanical coating technique (MCT) with titanium (Ti) powder, adding a certain content of chromium (Cr) powder and a subsequent oxidation process. The effect of oxidat...

  • Article
  • Open Access
16 Citations
6,739 Views
18 Pages

Synthesis and Thermomechanical Properties of Polyurethanes and Biocomposites Derived from Macauba Oil and Coconut Husk Fibers

  • Rafael L. Quirino,
  • Taynara F. Da Silva,
  • Amanda Payne,
  • Roseany De V. V. Lopes,
  • Leonardo G. Paterno and
  • Maria José A. Sales

26 August 2015

This work reports on a very effective route to produce bio-based polyurethanes (PUs) and composites with high content of renewable carbon sources. The PUs are prepared with polyols synthesized from macauba oil (Acrocomia aculeata) and methylene diphe...

  • Article
  • Open Access
5 Citations
6,294 Views
16 Pages

20 August 2015

The effect of synthesis conditions and niobium incorporation levels on the photocatalytic properties of Nb/MCM-41 molecular sieves was assessed. Niobium pentoxide supported on MCM-41 mesoporous silica was obtained using two methods: sol-gel and incip...

  • Article
  • Open Access
26 Citations
11,070 Views
23 Pages

19 August 2015

This paper is an attempt to elucidate the effects of the important spray characteristics on the surface morphology and light absorbance of spray-on P3HT:PCBM thin-films, used as an active layer in polymer solar cells (PSCs). Spray coating or depositi...

  • Article
  • Open Access
7 Citations
6,505 Views
11 Pages

7 August 2015

Confocal microscopy is introduced as a new and generally applicable method for the characterization of the vertically-aligned carbon nanotubes (VACNT) forest height. With this technique process control is significantly intensified. The topography of...

  • Article
  • Open Access
23 Citations
7,203 Views
12 Pages

31 July 2015

Photocatalytic activity of Portland cement pastes blended with nanoparticles of titanium oxynitride (TiO2−xNy) was studied. Samples with different percentages of TiO2−xNy (0.0%, 0.5%, 1%, 3%) and TiO2 (1%, 3%) were evaluated in order to study their s...

  • Review
  • Open Access
23 Citations
12,107 Views
40 Pages

30 July 2015

This review presents the latest results of studies directed at photocatalyst coatings of titanium dioxide (TiO2) prepared by mechanical coating technique (MCT) and its application. Compared with traditional coating techniques, MCT is a simple, low co...

  • Article
  • Open Access
17 Citations
6,313 Views
12 Pages

29 July 2015

Using ab initio alloy theory, we investigate the equilibrium bulk properties and elastic mechanics of the single bcc solid-solution AlxHf1−xNbTaTiZr (x = 0–0.7, 1.0) high entropy alloys. Ab initio predicted equilibrium volume is consistent with the a...

  • Review
  • Open Access
60 Citations
11,159 Views
47 Pages

29 July 2015

In this review, we discuss the basic concepts related to (co-)evaporation and (co)sputtering based fabrication methods and the electrical properties of polymer-metal nanocomposite films. Within the organic-inorganic hybrid nanocomposites research fra...

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