We have deposited a series of WC–Co coatings by the high velocity oxy fuel (HVOF) process, using three different powders, and different spray conditions. The powders are a nanocrystalline (Nanocarb), a near-nanostructured powder (Infralloy) containing a proprietary additive aimed at retarding grain growth, and multimodal (mixed micro and nano) powder (Nanomyte). HVOF spray conditions were stoic...

Infections caused by microorganisms are a global public health problem that continually demands new antimicrobial strategies. The generation of reactive oxygen species (ROS) photocatalytic materials is an attractive approach to combat microbes. Along these lines, titanium dioxide (TiO2) constitutes outstanding light-driven ROS generator. However, the wide bandgap this semiconductor limits its u...

The issues of the experimental study wear resistance a friction couple zirconium ceramics and hard chromium coating when sliding without lubrication under conditions reciprocating motion are discussed in article. ceramic material, chrome is investigated. materials was determined by gravimetric method with recalculation to nominal area contact test specimens. Changes indicators analyzed case usi...