IKBFU's Vestnik

2010 Issue №4

Research of characteristics of nanomodified dry building mixes

Abstract

The article is devoted to the investigation of influence of the nanomodification on physic-technical characteristics of dry building mixes. It was shown that the nanomodification leads to reorganization of structure of front glues, to increase of their durability and to essential reduction of the cost price.

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Temperature evolution of crystal structure of multiferroic Tb0.95Bi0.05MnO3

Abstract

The temperature evolution of crystal structure of multiferroic Tb0.95Bi0.05MnO3 has been studied by powder neutron diffraction in the temperature range 100—450 K. It is shown that the lattice parameters and volume expansion coefficient demonstrate anomalies in the interval 150—250 K. These anomalies could be attributed with a phase separation observed earlier for this compound.

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Study of conditions of electric breakdown in the flow part of electrical insulators of electric propulsion propellant supply systems

Abstract

The results of study of conditions of origination of electrical breakdown of gas in dielectric insulators of anode propellant (xenon) supply lines of prospective high-impulse increased-power electric thrusters intended for spacecraft orientation and stabilization are presented.

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