Production of Cu/Diamond Composite Coatings and Their Selected Properties.

This article presents Cu/diamond composite coatings produced by electrochemical reduction on steel substrates and a comparison of these coatings with a copper coating without diamond nanoparticles (<10 nm). Deposition was carried out using multicomponent electrolyte solutions at a current density of 3 A/dm and magnetic stirring speed of 100 rpm. Composite coatings were deposited from baths with different diamond concentrations (4, 6, 8, 10 g/dm).

Exploring the Impact of Structure-Sensitivity Factors on Thermographic Properties of Dy-Doped Oxide Crystals.

Optical absorption spectra and luminescence spectra were recorded as a function of temperature between 295 K and 800 K for single crystal samples of GdSiO:Dy, LuSiO:Dy, LiNbO:Dy, and GdGaAlO:Dy fabricated by the Czochralski method and of YAl(BO):Dy fabricated by the top-seeded high temperature solution method. A thermally induced change of fluorescence intensity ratio (FIR) between the I→ H and F → H emission bands of Dy was inferred from experimental data. It was found that relative thermal sensitivities S at 350 K are higher for YAl(BO):Dy and LuSiO:Dythan those for the remaining systems studied.

High-Pressure Low-Temperature Optical Studies of BaWO:Ce,Na Crystals.

We report detailed optical studies of BaWO:Ce and BaWO:Ce,Na single crystals. The material does not emit any luminescence at ambient pressure under near-UV (325 nm) excitation. Efficient green light is emitted only at high pressure (HP) and low temperature (LT).

A combined study of the equation of state of monazite-type lanthanum orthovanadate using in situ high-pressure diffraction and ab initio calculations.

Lanthanum orthovanadate (LaVO4) is the only stable monazite-type rare-earth orthovanadate. In the present paper the equation of state of LaVO4 is studied using in situ high-pressure powder diffraction at room temperature, and ab initio calculations within the framework of the density functional theory. The parameters of a second-order Birch-Murnaghan equation of state, i.