Buscar
Mostrando ítems 1-10 de 31
Understanding the piezoelectric properties in potassium-sodium niobate-based lead-free piezoceramics: Interrelationship between intrinsic and extrinsic factors
(Elsevier, 2017-04-26)
Lead zirconate titanate (PZT) based ceramics are currently enjoying a wide use in piezoelectric devices despite lead toxicity. Due to growing environmental concerns, the attention on piezoelectric ceramics has been moving ...
Revealing the role of cationic displacement in potassium-sodium niobate lead-free piezoceramics by adding W6+ ions
(Royal Society of Chemistry, 2015-03-18)
The effect of the structural modifications induced by the replacement of the B sites with W6+ ions in (K0.44Na0.52Li0.04)[(Nb0.86Ta0.10Sb0.04)1−xW5x/6]O3 lead free ceramics is investigated. Here we show the coexistence ...
Temperature-dependent Raman spectra of K0.2Na0.8NbO3 ceramics
(Wiley-Blackwell, 2005-01-01)
We performed temperature-dependent Raman scattering studies on K0.2Na0.8NbO3 ceramics and compared the results with those for NaNbO3. The wavenumbers associated with NbO6 vibrations suggest the existence of two phase ...
Temperature-dependent Raman spectra of K0.2Na0.8NbO3 ceramics
(Wiley-Blackwell, 2005-01-01)
We performed temperature-dependent Raman scattering studies on K0.2Na0.8NbO3 ceramics and compared the results with those for NaNbO3. The wavenumbers associated with NbO6 vibrations suggest the existence of two phase ...
Temperature-dependent Raman spectra of K0.2Na0.8NbO3 ceramics
(Wiley-Blackwell, 2014)
Influence of the sintering temperature on ferroelectric properties of potassium-sodium niobate piezoelectric ceramics
(2021-01-01)
The effect of sintering condition on structure, microstructure, and ferroelectric properties of (K0.44Na0.52Li0.04) (Nb0.86Ta0.10Sb0.04)- O3 (KNL-NTS) has been investigated. Ceramic powders have been synthesized by the ...
Dielectric loss and phase transition of sodium potassium niobate ceramic investigated by impedance spectroscopy
(Elsevier B.V., 2003-02-28)
The dielectric permittivity of Na0.80K0.20NbO3 ceramic was investigated by impedance spectroscopy. The dielectric characterization was performed from room temperature to 800 degreesC, in the frequency range 5 Hz-13 MHz. ...
Dielectric loss and phase transition of sodium potassium niobate ceramic investigated by impedance spectroscopy
(Elsevier B.V., 2003-02-28)
The dielectric permittivity of Na0.80K0.20NbO3 ceramic was investigated by impedance spectroscopy. The dielectric characterization was performed from room temperature to 800 degreesC, in the frequency range 5 Hz-13 MHz. ...