The method of hot pressing permits to obtain the ceramics of high density. It consist in simulate neons application of high temperature and pressure on charge made of pressed powder. The authors elaborated several devices ...

Electric and fotoelectric properties of monocrystals PbMg[1/3] Nb[2/3]O[3] in low temperatures are discussed. It is found that in the region of low temperatures electric properties of PbMg[1/3] Nb[2/3]O[3] are to large ...

Measurements of electrical conductivity of nonstoichiometric NaNbO[3] were made in the air atmosphere under normal and reduced pressure. It was stated that the value of electrical conductivity is strongly effected by ...

The temperature changes of electric conductivity and of electric permittivity were investigated for the NaNbO[3] and NaNbO[3] + /0,1%, 0,2%, 0,25%, 0,3%, 0,4%, 0,5% and 1% mol La[2]O[3]/ ceramics. Obtained data were used ...

Influence of the modifiers Ba, Ca, La and Ti on electric properties of NaNbO[3] was studied. Data concerning their influence on electric conductivity, dielectric permeability and Curie point are presented. Dependance of ...

Electric properties of the compound Na[1-x]NbO[3-0.5x] for 0<x<0.1 were studied. Influence of Na[2]O deficit on the sinter temperature on phase transition on dielectric and semiconducting properties of the ceramic materials ...

Influence of the constant magnetic field on temperature changes of the dielectric constant and on the electric conductivity of BaTiO[3]. It was shown for this material that together with the increase of the magnetic field ...

The block diagram of the digital Hall – effect teslometer intended to the fast determination of magnetic induction is presented and its functioning is described. Its possible application and some characteristics B(x) ...

Construction of the vacuum thermostat intended for measuring the heat conductivity of ferroelectrics and its temperature changes is presented. The properties of NaNbO[3] are studied in order to apply it in building the ...

Time and temperature changes of polarisation and depolarisation currents of the NaNbO[3] ceramics samples assumed to have correct stoichiometric content and of the samples NaNbO[3] having the excess of niobium or sodium ...