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Przejście fazowe antyferroelektryk - paraelektryk w niestechiometrycznym $NaNbO_3$
(1990)
The theory of AFE-PE phase transformation as formulated by Kittel is reviewed. The experimental values obtained from dielectric measurements are related, to the parameters of Kittel's thermodynamic function.
Some of the ...
Zmiany temperaturowe współczynnika rozszerzalności liniowej $NaNbO_3$
(1990)
The operation principle of a dilatometer is described.
The temperature changes of the coefficient of linear expansion were measured in temperature range between minus 196°C and plus 740°C.
Linear expansion coefficient ...
Klasyfikacja stałych roztworów na bazie $NaNbO_3$
(1990)
The criterion of division solid solutions, based on sodium niobate in to ferro-, and antiferroelectric materials is described.
The results of measurements are compiled in the table.
Charakterystyki prądowo-czasowe w układzie $metal-NaNbO_3-metal$
(1980)
The temperature changes of current - voltage and current - time characteristics having been investigated, data are
used to define the type of conductivity and to determine the activation energy of the charge carriers. ...
Elektryczne i fotoelektryczne własności monokryształów $PbMg_{1/3}Nb_{2/3}O_3$ w niskich temperaturach
(1984)
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 ...
Wpływ domieszek $La_2O_3$ na własności elektryczne niobianu sodu $NaNbO_3$
(1984)
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 $La_2O_3$/ ceramics. Obtained data were ...
Własności elektryczne niestechiometrycznego $NaNbO_3$
(1986)
Electric properties of the compound $Na_{1-x}NbO_{3-0.5x}$ for 0<x<0.1 were studied. Influence of $Na_2O$ deficit on
the sinter temperature on phase transition on dielectric and semiconducting properties of the ceramic ...
Wpływ niestechiometrii na zmiany czasowe i temperaturowe prądu depolaryzacji ceramiki niobianu sodu
(1986)
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 ...
Cyfrowy teslomierz hallotronowy
(1986)
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) ...