temperature dependences of residual polarisation
Quantity of residual polarisation at a room temperature of the double-layer sample almost in 4 times is less, than at triplex and four-layer (fig. 4.2). Disappearance of residual polarisation is observed in the range of temperatures 70÷74oC, that corresponds to anomaly on temperature dependence of an inductivity (fig.
4.1). At the same temperature the full disappearance pirotoka (fig. 4.3) was observed also. According to [15, 71, 72] it is temperature corresponds to temperature of ferroelectric phase transition of ceramics of composition BTS7.5. Anomalies (sites of sharp wane of polarisation) on temperature dependences of residual polarisation (fig. 4.2) correspond to temperatures of ferroelectric phase transitions making a builder [15, 71, 72].
Fig. 4.2. Temperature dependences of residual polarisation gradientnyh samples of ceramics BTS: 1 - double-layer (Zl), 2 - triplex (D) and 3 - four-layer (V) -
4.1.3.
More on topic temperature dependences of residual polarisation:
- З.1. Temperature dependences pirotoka crystals SBN of a various composition
- 4.1. Influence of a temperature cycling on a state of polarisation of crystals SBN
- Temperature dependences of an inductivity and the dielectric losses
- temperature dependences of pyroelectric coefficient
- 3.3. Temperature dependences pirotoka crystals CBN of a various composition
- Chapter 4. The thermodynamic approach to examination of the dimensional dependences of thermodynamic performances nanochastits (fusion temperature, crystallisation temperature, a heat of melting, a specific free surface energy)
- temperature dependences of an inductivity
- temperature dependences Vakh
- temperature dependences of enthalpy of opening of bond
- calculation of the dimensional dependences of temperature of fusion and crystallisation metal nanoklasterov
- Measuring volt-faradnyh, the frequency and temperature dependences of an inductivity and the dielectric losses
- a lateral view of polarisation of schistose structures on the basis of BTS
- 2.2. The analysis of a state of polarisation in segnetoaktivnyh materials with use TSW of a method
- influence of exterior actions on a state of polarisation of crystals CBN
- 2.3 Ostsillografichesky method - definitions of spontaneous polarisation
- Examinations of spontaneous polarisation
- Self-polarisation in films of a ferroelectric material
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