Structural, piezoelectric and dielectric properties of PSLZT–PMnN ceramics

Kalem, Volkan; Timuçin, Muharrem

doi:10.1016/j.jeurceramsoc.2012.08.001

Cited by 16 publications

(6 citation statements)

References 25 publications

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“…A higher mechanical quality factor leads to changes to the domain motion, which is inversely proportional to the internal stress; therefore, as the PMN molar ratio increases, the particle size decreases, and the internal stress improves, making it difficult to move the domain. It is considered that the mechanical quality factor continues to increase [18][19][20][21].…”

Section: Resultsmentioning

confidence: 99%

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

Kim

Lee

2022

Micromachines

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Piezoelectric material properties were optimized to develop materials for an ultrasonic vibrator targeting a high vibration efficiency. Herein, novel materials were developed using a composition represented by 0.08Pb(Ni1/3Nb2/3)O3-0.07Pb(Mn1/3Nb2/3)O3-0.85Pb(Zr0.5Ti0.5)O3 + 0.3 wt.% CuO + 0.3 wt.% Fe2O3 with 0.3 wt.% Sb2O3 doping. A ceramic shape with a thickness of 2 mm was optimized using finite element analysis software, and high values of coupling factors (0.54) and mechanical quality factors (1151) were obtained. This ceramic was used to fabricate a bio-beauty device (frequency = 1 MHz), and the manufactured ultrasonic vibrator indicated that the actuator oscillated with the maximum amplitude at a frequency of 1.06 MHz.

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Section: Resultsmentioning

confidence: 99%

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

Kim

Lee

2022

Micromachines

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“…Figure shows impedance versus frequency for sample x = 0.0. In accordance with the European standard EN 50324‐2:2002 and IRE standards, the electromechanical coupling factor k p and mechanical quality factor Qm are determined from the fundamental frequencies: f r (Hz) and f a (Hz). The final equations for determination of the k p is as follows:

k_{p} = \sqrt{\frac{f_{a} - f_{r}}{0.395 f_{r} + 0.574 (f_{a} - f_{r})}}

Q_{m} = \frac{f_{a}^{2}}{2 π Z_{m} C f_{r} false(f_{a}^{2} - f_{r}^{2} false)}

…”

Section: Resultsmentioning

confidence: 99%

Dielectric and piezoelectric performance of gadolinium‐doped lead lanthanum zirconate titanate

Mansour

Eid

El-Latif

et al. 2017

Int J Applied Ceramic Tech

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In this article, polycrystalline samples of Gd3+ ion‐modified lead lanthanum zirconate titanate PLGZT: (Pb0.94‐xGdxLa0.06)(Zr0.52Ti0.48)O3; x = 0, 2, 4, 6, and 8% have been prepared by the sol‐gel autocombustion strategy. The structural properties of the prepared samples were analyzed by X‐ray diffraction profile (XRD), Fourier transform infrared spectra (FT‐IR), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The samples were assigned to pure PZT perovskite tetragonal structure. Ag electrodes were made on both sides of the disks for measurements of electrical and dielectric properties at different temperatures ranging from 30 to 500°C at various frequencies. The maximum dielectric constant, Curie temperature (TC), dielectric loss at TC, and the piezoelectric charge coefficient d33 ranges of the investigated samples were found to be 1850 to 2420, 350 to 399°C, 0.023 to 0.026, and 299 to 532 pC/N, respectively. Higher coefficients were reached for the 4 % Gd substitution. Finally, the obtained results indicate that these materials can be good candidates for ultrasonic transducers.

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“…All samples show the dense sintered body and the mean grain size is decreased from ~2.4 μm for x = 0.00 specimen to ~1.9, ~1.8, and to ~1.5 μm for x = 0.01, 0.02, and 0.05 specimens, respectively. It is deduced that in the same sintering condition, the inhibition of grain growth with increase in PZN content can be attributed to the enhanced difficulty of diffusion accompanying the lattice shrinkage caused by the increase in B ‐site ion …”

Section: Resultsmentioning

confidence: 99%

Metastable Ferroelectric Phase Induced by Electric Field in xPb(Zn_1/3Nb_2/3)O₃–(1–x)Pb(Zr_0.95Ti_0.05)O₃ Ceramics

2016

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A xPb(Zn 1/3 Nb 2/3 )O 3 -(1-x)Pb(Zr 0.95 Ti 0.05 )O 3 (xPZN-(1-x) PZT) system close to antiferroelectric-ferroelectric (AFE-FE) morphotropic phase boundary has been prepared and investigated. The XRD results reveal PZN addition induces a phase transition from the orthorhombic (AFE) to rhombohedral (FE) phase through a phase coexistence region (AFE+FE). The polarization-electric field (P-E) measurements indicate that the AFE phase can be induced into a metastable FE (FE m ) phase. And the FE m can recover to AFE around a critical temperature indicated by temperature-dependent P-E loops. A composition-temperature phase diagram was generalized within a certain range of PZN content in which an AFE-FE phase boundary connecting orthorhombic antiferroelectric to rhombohedral ferroelectric phase zones is formed near room temperature.H.-E. Kim-contributing editor Manuscript No. 37316.

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Structural, piezoelectric and dielectric properties of PSLZT–PMnN ceramics

Cited by 16 publications

References 25 publications

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

Dielectric and piezoelectric performance of gadolinium‐doped lead lanthanum zirconate titanate

Metastable Ferroelectric Phase Induced by Electric Field in xPb(Zn_1/3Nb_2/3)O₃–(1–x)Pb(Zr_0.95Ti_0.05)O₃ Ceramics

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Structural, piezoelectric and dielectric properties of PSLZT–PMnN ceramics

Cited by 16 publications

References 25 publications

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors

Dielectric and piezoelectric performance of gadolinium‐doped lead lanthanum zirconate titanate

Metastable Ferroelectric Phase Induced by Electric Field in xPb(Zn1/3Nb2/3)O3–(1–x)Pb(Zr0.95Ti0.05)O3 Ceramics

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Metastable Ferroelectric Phase Induced by Electric Field in xPb(Zn_1/3Nb_2/3)O₃–(1–x)Pb(Zr_0.95Ti_0.05)O₃ Ceramics