Journal of Advanced Dielectrics
·
2022
·
IF 0
Chuan Chen,Yan Wang,Jiajiu Li,Chaofeng Wu,Guanrong Yang
A series of (100 − x ) Pb(Mg 1 / 3 Nb 2 / 3 ) O 3 − x PbTiO 3 (PMN − x PT, x = 24, 25, 26) ceramics were prepared by solid-state reaction technique using MgNb 2 O 6 precursor. The results of the detailed characterizations reveal that the content of PT has negligible influence on the grain size, and all samples possess the perovskite structure. As the PT content increases, the samples changed from the normal ferroelectric phase to the ergodic relaxor state at room temperature. As a result, PMN– x PT ceramics are endowed with electro-strain of 0.08% at a relatively low electric field of 2 kV/mm, and effective piezoelectric coefficient of 320 pm/V was obtained. Simultaneously, the PMN– x PT ceramics have exceptional pyroelectric performance, exhibiting a high pyroelectric coefficient p ∼ 5.5 – 6.3 × 10 − 8 C⋅cm − 2 ⋅K − 1 . This study demonstrates the great potential of PMN– x PT for piezoelectric and pyroelectric device applications.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
CERAMICS INTERNATIONAL
·
2016
·
IF 2.758
Zhenzhen Song,Yongcheng Zhang,Chaojing Lu,Zhenmeng Ma,Zhenjia Hu,Lin Wang,Chao Liu
Relaxor ferroelectric 0.75(Pb 1–3 x /2 La x )(Mg 1/3 Nb 2/3 )O 3 -0.25(Pb 1–3 x /2 La x )TiO 3 (La 3+ :PMN-PT x /75/25, where x =2.8, 3.0, 3.5, and 4.0 mol% of La 3+ ) transparent ceramics were fabricated by the combination of oxygen atmosphere pressureless sintering and hot-pressing sintering process. The optical transmittances of above four ceramics are higher than 60% at the wavelength of 500–900 nm. La 3+ :PMN-PT 3.0/75/25 exhibits the highest transparency around 70% at 900 nm which is very close to the theoretical transmittance 71%. Each of the four ceramics exhibits the pure perovskite phases. They show fully dense microstructures and their relative densities are higher than 99.8%. The ferroelectric and dielectric measurements indicate that these four ceramics exhibit relaxation characteristics. With increasing La 3+ content, (200) peak in XRD patterns shifts to higher angles and the average grain size increases, while the temperature Tε max corresponding to the maximum ε r , the remanent polarizations P r and coercive fields E c decrease gradually.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Ruigang Qiu,Feifei Guo,Jie Wu,Wenqiang Bai,Yifei Chen,Hongqiao Zhou,Wei Long,Xiaojuan Li,Pinyang Fang,Zhonghua Dai,Jie Dong,Zengzhe Xi
In this work, texturing is proposed to improve the piezoelectric response of PSN-PMN-PT ceramics. The PSN-PMN-PT textured ceramic with a Lotgering factor F 001 higher than 99% was synthesized by the liquid-phase-assisted template grain growth (TGG) method. The addition of CuO/B 2 O 3 sintering aids improves the BT templates induced grain orientation growth behavior significantly. In comparison with its random counterpart, the Cu/B-T textured ceramic exhibits a high Lotgering factor F 001 of 99% and significantly enhanced dielectric and piezoelectric responses: ε r ∼ 3100, tan δ ∼ 0.8%, d 33 ∼ 1030 pC N –1 , d 33 ⋅ g 33 ∼ 34.2 × 10 –12 m 2 N –1 , d 33 * ∼ 1490 pm V –1 @5 kV cm –1 , S max ∼ 0.26%@20 kV cm –1 and H s ∼ 8.5%. In the meantime, good temperature stability is observed in the Cu/B-T textured ceramic with a variation of d 33 *@20 kV cm –1 and annealed d 33 lower than 9.68% and 18.1% over a wide temperature range of 25–140 °C. This work shows that PSN-PMN-PT textured ceramic (Cu/B-T) has great potential for electromechanical device applications such as precision actuators, ultrasound transducers, and energy harvesters.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Advanced Dielectrics
·
2022
·
IF 0
Xudong Qi,Kai Li,Lang Bian,Enwei Sun,Limei Zheng,Rui Zhang
Relaxor-based ternary Pb( In 1 / 2 Nb 1 / 2 )O 3 –Pb( Mg 1 / 3 Nb 2 / 3 )O 3 –PbTiO 3 (PIN–PMN–PT) single crystals and ceramics are promising candidates for high-performance electromechanical conversion devices. It is known that the domain structure and dielectric diffusion–relaxation characteristics are crucial to the excellent performances of relaxor ferroelectrics. In this work, we prepared the PIN–PMN–PT ceramics with various PIN/PMN proportions and systematically investigated their domain structure and dielectric diffusion–relaxation properties. The effect of PIN/PMN proportion on the domain size and dielectric diffusion–relaxation characteristics was also studied. The investigations showed that PIN–PMN–PT ceramics presented multi-type domain patterns comprising irregular island domains and regular lamellar domains. Moreover, the dependent relations of PIN/PMN proportions on the dielectric diffusion and domain size indicated that the PIN composition has a stronger lattice distortion than PMN composition; increasing the PIN proportion can enhance the dielectric diffusion and decrease the domain size. Our results could deepen the understanding of structure–property relationships of multicomponent relaxor ferroelectrics and guide the design and exploration of new high-performance ferroelectric materials.
研究领域:
材料科学
·
凝聚态物理
✓ 已验证
DOI
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Ze Fang,Xue Tian,Fengji Zheng,Xiaodong Jiang,Wanneng Ye,Yalin Qin,Xiaoxiong Wang,Yongcheng Zhang
Piezoelectric materials are widely used in electromechanical energy conversion, such as in sensors, transducers, and self-powered materials. In this paper, the influence of the Sm doping content on the microstructure and ferroelectric , piezoelectric , dielectric , and field-induced strain properties of 0.70Pb(Mg 1/3 Nb 2/3 )O 3 -0.30PbTiO 3 (PMN-PT) ceramics was investigated. Sm-doped PMN-PT ceramics with both high piezoelectric properties ( d 33 ∼1406 pC/N) and a large electromechanical coupling coefficient ( k p ∼0.69) were synthesized. Based on their piezoelectric effect, a maximum output voltage of 31 V was achieved under external forces. The output voltages showed satisfactory stability, repeatability, and sensitivity under periodic external forces; hence, Sm-doped PMN-PT piezoelectric ceramics are potential candidates for energy conversion and signal monitoring.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
ACTA MATERIALIA
·
2024
·
IF 8.3
Qinghu Guo,Xiangyu Meng,Dongxu Li,Zhonghua Yao,Huajun Sun,Hua Hao,Hanxing Liu,Shujun Zhang
Electrostrictive materials play an important role in the development of high precision actuators, due to the advantages of high resolution, low power dissipation and fast response time. However, the practical application of electrostrictive materials has been hindered by their limited displacement output. To address this, we conducted a study where we doped Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (PMN-PT) ceramics with Nd 2 O 3 , aiming to significantly improve the electrostrictive effect by enhancing local structural heterogeneities that disrupt the formation of long-range ordered ferroelectric domains. We obtained an optimized electrostrictive strain of 0.231 % with negligible hysteresis at an electric field of 50 kV/cm in 4 %Nd-doped PMN-PT ceramic, surpassing the performance of state-of-the-art lead-based electrostrictive ceramics. Of particular significance is that a high electrostrictive coefficients M 33 = 12.2 × 10 −16 m 2 /V 2 , together with a high mechanical work density of 0.035 J/cm 3 and a low power dissipation of 14 %, was achieved under a mechanical prestress of 50 MPa and an electric field of 10 kV/cm. Additionally, this material exhibits excellent fatigue resistance , with less than 3 % variation over 10 6 operation cycles. All these findings position 4 %Nd-doped PMN-PT ceramics as a promising candidate for high-performance electromechanical actuator applications.
研究领域:
材料科学
·
工程学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2019
·
IF 4.029
Xudong Qi,Yan Zhao,Enwei Sun,Juan Du,Kai Li,Ye Sun,Bin Yang,Rui Zhang,Wenwu Cao
The photoluminescence , dielectric relaxation, ferroelectric hysteresis, and field-induced strain properties of Pr 3+ -doped 0.24Pb(In 1/2 Nb 1/2 )O 3 -0.42Pb(Mg 1/3 Nb 2/3 )O 3 -0.34PbTiO 3 (PIN-PMN-PT:Pr 3+ ) multifunctional ceramics have been investigated. It was found that Pr 3+ doping enhanced the dielectric diffuseness and relaxation behavior of PIN-PMN-PT ceramics. Slim P - E loops and S - E curves appear in PIN-PMN-PT:Pr 3+ ceramics when the Pr 3+ doping concentration reaches 1.4 mol%. Local domain configurations associated with phase transitions were investigated by piezoresponse force microscopy (PFM). Large electrostrictive coefficient Q 33 (˜0.03 m 4 /C 2 ) and high energy-storage efficiency η (92%) were obtained in 2 mol% Pr 3+ -doped PIN-PMN-PT ceramic in the ergodic relaxor (ER) phase at room temperature. The giant electrostrictive effect and excellent energy-storage performance are related to the field-induced dynamic behavior of polar nanoregions (PNRs). The results show that the PIN-PMN-PT:Pr 3+ system is an excellent multifunctional material for making electromechanical and energy storage devices.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Dejun Liang,Xiaojuan Li,Yufeng Pi,Chenchen Xin,Mingyong Ren,Wei Long,Jie Wu,Pinyang Fang,Feifei Guo,Aiguo He,Zengzhe Xi
In this study, anisotropy strategy was employed to effectively enhance the piezoelectric performance and energy harvesting capability of 6 Pb(Sc 1/2 Nb 1/2 )O 3 -61 Pb(Mg 1/3 Nb 2/3 )O 3 -33PbTiO 3 (Abb. 6PSN–61PMN–33PT) ceramics. A high crystallographic orientation (Lotgering factor F 001 exceeding 98.5 %) was obtained in 6PSN–61PMN–33PT textured ceramics using the template grain growth (TGG) method. The piezoelectric response of 6PSN–61PMN–33PT ceramics was significantly improved, while the dielectric constant ( ε r ) was reduced. Compared to random ceramics, the textured ceramics exhibited higher figure of merit ( d 33 × g 33 ), markedly enhanced electromechanical coupling factor ( k p ) and piezoelectric coefficient ( d 33 ). The optimal properties were obtained in 6PSN–61PMN–33PT textured ceramics with 1 wt% BaTiO 3 template: d 33 = 1179 pC/N, k p = 0.87, ε r = 2766， d 33 × g 33 = 5.67 × 10 −11 m 2 /N, dielectric loss tan δ about 0.56 %, mechanical quality factor Q m = 194, and piezoelectric strain constant d 33 ∗ = 1130 pm/V and maximum strain S = 0.23 % at 20 kV/cm. These results demonstrate that 6PSN–61PMN–33PT textured ceramics hold promising application potential in energy harvesters.
研究领域:
材料科学
·
功能陶瓷
·
压电器件
·
能量采集
·
先进制造
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 23
·6918-6927
·
IF 7
Qinghu Guo,Dongxu Li,Zhonghua Yao,Huajun Sun,Hua Hao,Hanxing Liu,Shujun Zhang
Electrostrictive materials have been actively studied for applications in precision machinery, laser communication, and biological microscopy due to their numerous advantages, including high resolution, negligible hysteresis, low heat dissipation, and fast response. Nevertheless, simultaneously achieving high strain and low hysteresis in electrostrictive materials presents a great challenge, impeding the development of high precision positioning devices. In this study, we designed a critical phase point where the relaxor state coexists with the rhombohedral and tetragonal phases, offering a favorable environment for the reversible transition from the ergodic relaxor state to an unstable long-range ordered ferroelectric state under an external electric field, enabling a high electrostrictive strain. To achieve this strategy, we introduced a strong relaxor component by incorporating a Nd dopant into Pb(Mg1/3Nb3/2)O3–PbTiO3 (PMN–PT) ceramics, thereby enhancing local structural heterogeneity. The resulting 4%Nd-doped 0.69PMN–0.31PT ceramic exhibits an excellent electrostrictive strain of 0.22% with a highly effective piezoelectric strain coefficient Smax/Emax = 730 pm V−1 at 30 kV cm−1, superior to those of previously reported electrostrictive ceramics and most piezoelectric ceramics. Moreover, the 4%Nd-doped 0.69PMN–0.31PT ceramic demonstrates favorable temperature stability, maintaining an electrostrictive strain of 0.15% at temperatures up to 80 °C. This work provides an effective way to obtain high-performance electrostrictive materials via synergistically enhancing local structural heterogeneity and designing a morphotropic relaxor phase boundary.
研究领域:
材料科学
·
电陶瓷
·
压电材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）