Erbium-Doped LuO-MgO and ScO-MgO IR-Transparent Composite Ceramics.

Novel IR-transparent ceramics of erbium-doped LuO-MgO and ScO-MgO composites have been successfully obtained using a combination of glycine-nitrate self-propagating high-temperature synthesis and vacuum hot-pressing methods. Composites have densities greater than 99.5% of those calculated by X-ray diffraction and consist of uniformly distributed submicron grains of magnesium and rare earth oxides.

Influence of SHS Precursor Composition on the Properties of Yttria Powders and Optical Ceramics.

This study looked at optimizing the composition of precursors for yttria nanopowder glycine-nitrate self-propagating high-temperature synthesis (SHS). Based on thermodynamic studies, six different precursor compositions were selected, including with excesses of either oxidant or fuel. The powders from the precursors of all selected compositions were highly dispersed and had specific surface areas ranging from 22 to 57 m/g.

Thermo-optical properties of terbium sesquioxide (TbO) ceramics at room temperature.

Thermo-optical properties of several () ceramic samples were investigated in this Letter. The linear absorption and thermal conductivity coefficients, as well as the power dependence of thermally induced phase and polarization distortions of laser radiation, were measured. In addition, the effective thermo-optical constants and were estimated.

Thermo-Optical Studies of Laser Ceramics.

A cycle of works on manufacturing and studying laser and magnetooptical ceramics with a focus on their thermo-optical characteristics performed by the research team is analyzed. Original results that have not been published before such as measurements of the Verdet constant in the Zr:TAG, Re:MgAlO, and ZnAlO ceramics are also presented.

Self-propagating high-temperature synthesis of (HoLa)O nanopowders for magneto-optical ceramics.

Weakly agglomerated nanoparticles of (HoLa)O solid solutions were synthesized with the help of a self-propagating high-temperature synthesis (SHS). The nanopowders were studied by a simultaneous thermal analysis (TG-DSC), X-ray diffraction (XRD), BET and FT-IR spectroscopy methods. Changes of the particles morphology after annealing at different temperatures and ball milling were investigated by a scanning electron microscopy (SEM) and a dynamic light scattering (DLS) method.