In this work, the technique of Direct Laser Interference Patterning (DLIP) was used to fabricate micrometric structures at surface Cobalt-Chromium-Molybdenum and AZ91D magnesium alloys. Line-like patterns with spatial periods 5 μm were textured using an ultra-short pulsed laser (10 ps pulse duration 1064 nm wavelength) a two-beam interference setup. The topography, morphology, chemical modifica...

In the present work, 5 wt.% and 10 yttria-stabilized zirconia (YSZ) nanoparticles were reinforced in Ni-20Cr powder deposited on boiler tube steel using a high-velocity oxy-fuel spraying process. The effect of YSZ reinforcement microhardness, surface roughness porosity was investigated. hardness highest for nanocomposite coating with found to increase decrease porosity. microstructure elements ...

Cs-bearing microparticles, released during the accident of Fukushima Daiichi, are a significant concern for health and environment due to their abundance over wide areas, associated with low solubility. Since discovery, efforts have been made characterise these particles use them as direct witnesses various events inside reactors. This study reports experimental synthesis micrometric through mo...

A new way of measuring planar position for micrometric and sub-micrometric applications is presented with a mono sensing electrode and hybrid-frequency excitation. The sensing theory and operation principle are described and summarized, and a printed circuit board (PCB) sensor prototype is built and tested. It is shown by the experimental results that a very simple structure and geometric relat...

This Research Article describes a novel method for removal of particulate contamination, loosely referred to as dust, from solid surfaces using polymeric micropillars. In this Research Article, we illustrate for the first time that polymeric microfibrils of controlled interfacial and geometrical properties can effectively remove micrometric and submicrometric contaminant particles from a solid ...

Polar stratospheric clouds (PSCs) are extremely efficient at catalysing the transformation of photostable chlorine reservoirs into photolabile species, which are actively involved in springtime ozone-depletion events. Why PSCs are such efficient catalysts, however, is not well understood. Here, we investigate the freezing behaviour of ternary HNO₃-H₂SO₄-H₂O droplets of micrometric size, which f...

Nano-science and nano-technology as well as the fine modelling of the structure and mechanics of materials from the nanometric to the micrometric scales use descriptions ranging from the quantum to the statistical mechanics. This paper revisits the modelling at these scales and points out the main challenges related to the numerical solution of such models that some times are discrete but invol...