Progression in the field of insulating materials for power transformers and other high voltage devices is visible regardless type insulation: solid, liquid, or gas [...]

As a result of a revision of the JIS system, the application of the hot wire method for determining thermal conductivity has been expanded from heat-insulating bricks to refractories with higher heat conductivity. In this regard, focusing on magnesia bricks, which are used in the safety lining of converters and a wide variety of other applications, the authors studied the possibility of applyin...

Recent experimental observations of unexpectedly large thermal Hall conductivities, $\kappa_H$, in insulating materials, including the parent compounds high temperature superconducting cuprates, likely reflect an extrinsic contribution from a yet to be identified source skew scattering acoustic phonons. We show that resonant phonons certain class three-level systems produces strong presence mod...

Concern for the sustainable management and recycling of solid waste is becoming more visible in all sectors economy. This study explores possibility using coal ash residue (waste from Kazan CHPP-2) as a substitute fine-grained aggregate sulfur concrete. The trend towards an increase level utilization heat power engineering important task. chemical composition, microstructure mechanical properti...

A model is presented that successfully predicts electro-optical properties of Lanthanide materials, irrespective whether these materials are inorganic or organic, diluted or concentrated, metallic, semi-conducting or insulating. The model is firmly based on recent experimental data revealing that the variation in 4f and 5d energies relative to the valence band over the Ln series (La, Ce, Pr,.. ...

The standard problem of finding the optimal layout of structural material associated with maximum stiffness is expanded to include consideration of thermal criteria. The problem is posed as a three-phase layout problem where the phases include an insulating or fire retardant material and an unknown distribution of heat sources, in addition to the structural material. The model used is simple, y...