Crystal-chemical effect of the thermodynamic history on the composition-temperature phase diagrams of (Na,Li)NbO3 and (Na,K)NbO3 solid solutions

Raevski, I. P.; Ivliev, M. P.; Резниченко, Л. А.; Палатников, М. Н.; Balyunis, L. E.; Malitskaya, M. A.

doi:10.1134/1.1486203

Cited by 17 publications

(10 citation statements)

References 12 publications

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“…However, Lead had been prohibited to use in the electric devices, considering the environmental protection problems. Recently, some other kinds of perovskite-type compounds [10][11][12] were doped into BT to replace the traditional PT, in order to increase the Curie temperature of BT-based PTCR ceramics.…”

Section: Introductionmentioning

confidence: 99%

Effect of sintering procedure on the resistivity of (1−x)BaTiO3−x(Bi0.5Na0.5)TiO3 ceramics

Liu

Yang

2010

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Effect of sintering procedure on the resistivity of (1−x)BaTiO3−x(Bi0.5Na0.5)TiO3 ceramics

Liu

Yang

2010

Journal of Alloys and Compounds

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“…, where γ and C are constants and the value of γ is between 1 and 2 [17]. It approaches 1 for the normal ferroelectric, nevertheless the value will be 2 in the case of relaxor ferroelectric.…”

Section: Resultsmentioning

confidence: 99%

“…Solid-state single crystal growth (SSCG) have been employed to grow KNN single crystals, but the as-grown crystals proved to be porous [13,14]. The KNN crystals grown by a flux method exhibited high quality, yet the size of the crystals was limited [15][16][17]. Li modified single crystal was grown by the Bridgman method and the piezoelectric coefficient d33 was reported to be 204-405 pC/N; however, the oversaturated hysteresis loop at a frequency of 10 Hz indicated that the crystal contains oxygen vacancies and defects [18].…”

Section: Introductionmentioning

confidence: 99%

Dielectric and piezoelectric properties of lead-free (K0.44Na0.46)NbO3-0.5%MnO2 single crystals grown by the TSSG method

Zhou

Deng

Liu

et al. 2016

Ceramics International

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Lead-free (K0.44Na0.46)NbO3-0.5%MnO2 (KNN-0.5%MnO2) single crystals with dimensions of Ф30×10 mm were successfully grown by a top seed solution growth technique (TSSG). The X-ray diffraction pattern have shown that the as-grown crystals have an orthorhombic perovskite structure. The orthorhombic-tetragonal (TO-T) and tetragonal-cubic phase transition temperature (the Curie temperature TC) of the single crystal were found at 184 ℃ and 412 ℃, respectively. The KNN-0.5%MnO2 single crystals exhibited high piezoelectric constants d33 and dielectric permittivity εr, being 261 pC/N and 275. Well saturated P-E hysteresis loop with remnant polarization Pr=22.06 µC/cm 2 and coercive field Ec=17.93 kV/cm was obtained at a maximum electric field of 3 kV/mm. A high stain (0.24%) and electromechanical coupling coefficient Kt (65.9 %) were observed along the (001) orientation. These excellent results indicated that the KNN-0.5%MnO2 single crystals could be used as high quality lead-free material.

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“…Comparing the results with temperatures given in the literatures, we have observed some differences in the values. They are probably due to differences in preparation of the materials [1,23]. The maximum of permittivity values (ε m ) are ε m = 1800, 2700 and 750 for x = 0.08, 0.1 and 0.2 respectively.…”

Section: Resultsmentioning

confidence: 99%

Electrical and Thermal Properties of Na1–xLixNbO3 (x = 0.08, 0.1 and 0.2) Ceramics Near the Morphotropic Phase Boundary Region

Konieczny

Czaja

2017

Archives of Metallurgy and Materials

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Na 1-x Li x NbO 3 ceramics (for x = 0.08, 0.1, 0.2) were fabricated by the conventional solid state reaction method. The influence of LiNbO 3 on the microstructure, electric, thermal properties of Na 1-x Li x NbO 3 ceramics was studied and a significant influence of doped Li ions on the electrical properties was observed. The electrical properties were improved and are described as the best for x = 0.1 (near a morphotropic phase boundary) Na 1-x Li x NbO 3 solid solutions. After crossing the morphotropic phase boundary for x = 0.2, the electric properties are getting worse. These types of solid compounds show some interesting properties suitable for practical applications.

show abstract

Crystal-chemical effect of the thermodynamic history on the composition-temperature phase diagrams of (Na,Li)NbO3 and (Na,K)NbO3 solid solutions

Cited by 17 publications

References 12 publications

Effect of sintering procedure on the resistivity of (1−x)BaTiO3−x(Bi0.5Na0.5)TiO3 ceramics

Effect of sintering procedure on the resistivity of (1−x)BaTiO3−x(Bi0.5Na0.5)TiO3 ceramics

Dielectric and piezoelectric properties of lead-free (K0.44Na0.46)NbO3-0.5%MnO2 single crystals grown by the TSSG method

Electrical and Thermal Properties of Na1–xLixNbO3 (x = 0.08, 0.1 and 0.2) Ceramics Near the Morphotropic Phase Boundary Region

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