A mortar for lining coke batteries by zones

Conclusions A dinas mortar has been developed for lining coke batteries by zones, for the low-temperature zones with addition of 5% borax and for the high-temperature with addition of 2% borax.Deceased.Translated from Ogneupory, No. 8, pp. 22–24, August, 1993.     

Investigating the kinetics and mechanism of deformation of magnesia during sintering compacts

Conclusions We investigated the kinetics of deformation of specimens of different magnesium oxide samples and their mixtures. It was found that high deformation during heating is connected with the dispersion of the particles, which largely determines the pronounced defectiveness in the system in the form of the extensive surfaces of the grain boundaries.Deformation of the specimens of magnesia may be reduced by preliminary heat processing of the material or products which reduces the total number of defects (regardless of their nature).Deformation of the articles made from magnesia by sintering is a result of diffusion-viscous flow of the material under gravity forces and is accomplished by volume diffusion of the vacancies.Translated from Ogneupory, No.4, pp. 30–35, April, 1967.     

Op-Amps without current mirrors based on depletion-mode p- and n-channel MOS and JFET

Analog Integrated Circuits and Signal Processing - The two operational amplifier architectures (Op-Amps) are proposed based on depletion-mode MOS transistors and n-channel junction FET (n-JFET)...