JAPANESE JOURNAL OF APPLIED PHYSICS
·
2013
·
IF 1.067
Dali Wang,Zhaohua Jiang,Bin Yang,Shantao Zhang,Mingfu Zhang,Feifei Guo,Wenwu Cao
A novel xPb(Ni1/3Nb2/3)O3–(1-x)(0.30BiScO3–0.70PbTiO3) (PNN–BS–PT) ternary system was prepared by the columbite precursor method. The phase structure, microstructure, and electrical properties of ceramics of this system were investigated to identify the morphotropic phase boundary (MPB) composition of this system. The MPB with coexisting rhombohedral–tetragonal phases of PNN–BS–PT was located at approximately x=0.35, confirmed by their respective electric properties. With increasing PNN content, the coercive field EC, the Curie temperature TC, and the rhombohedral-to-tetragonal phase transition temperature TR–T were found to decrease and showed nearly linear dependences on their compositions. The enhanced properties were achieved in the MPB composition with x=0.35, which are as follows: dielectric constant εr=3160 (1 kHz), piezoelectric coefficient d33=490 pC/N, and electromechanical coupling factor kp=0.44. In addition, a large bipolar strain on the order of 0.6% was achieved for the composition when an electrical field E=40 kV/cm was applied.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
Journal of Advanced Dielectrics
·
2023
·
IF 3.1
Lei Liu,Fangyi Yin,Guiyuan Zhao,Limei Zheng,Xiuwei Fu,Zhitai Jia,Xutang Tao
B 0 . 7 7 Ca 0 . 2 3 TiO 3 (BCT) single crystal has been widely studied as a promising lead-free ferroelectric material. In this work, high-quality BCT crystal was successfully grown by the Czochralski (CZ) method. The as-grown crystal is crack-free and shows black coloration. It possesses a high dielectric stability over a wide temperature range, while the dielectric loss is rather small below 90 ∘ C. Furthermore, it possesses excellent ferroelectric properties with residual polarization strength ( P r ) and coercive field ( E c ) of 17.93 μ C/cm 2 and 8.47 kV/cm, respectively. Besides, BCT crystal shows large electromechanical coupling factors, with k t , k 3 1 , k 3 3 and k 1 5 of 0.535, 0.254, 0.714 and 0.721, respectively. The piezoelectric coefficients d 3 1 , d 3 3 and d 1 5 are measured to be − 36.5, 130 and 246 pC/N, respectively.
研究领域:
材料科学
·
铁电材料
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晶体生长
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Jinpeng Ma,Ke Zhu,Da Huo,Bingzhong Shen,Yang Liu,Xudong Qi,Enwei Sun,Rui Zhang
The performances of 1–3 piezocomposite materials under various poling conditions were compared and analysed. The dielectric , piezoelectric , and electromechanical properties of 1–3 piezocomposite materials were studied with variations in the electric field amplitude ( E p ), poling frequency ( f ), and number of cycles ( C ). It was found that the piezoelectric coefficient ( d 33 ), free dielectric constant ( ε 33 T / ε 0 ), and electromechanical coupling factor ( k t ) of 1–3 piezocomposite materials exhibit an increase of 21.4%, 13%, and 10.7%, respectively, under the optimum alternating current poling (ACP) condition ( f = 1.25 Hz, E p = 2 kV/mm, C = 16), compared with that of the samples poled using the direct current polarisation (DCP) method. The studies of the domain pattern indicate that the performance enhancement originates from the remarkable regularly striped domain structure and high domain wall density in ACP-poled samples. Our results suggest that the ACP method is effective in enhancing the performance of composite piezoelectric materials , which possess great benefits and potential for application in acoustic/medical transducers.
研究领域:
材料科学
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声学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 20
·1-10
·
IF 2.8
Liu Hao,Wang Yiping,Wang Jiakang,Yang Ying,Liu Huihui,Wu Jintao,Zhang Jiyang
Temperature stability of the piezoelectric ceramics is critical to its performance in high-power devices. In this research, 5 mol% BiScO 3 (BS) is introduced into 0.05Pb(Mn 1/3 Sb 2/3 )O 3 –Pb(Zr 1− x Ti x )O 3 system. The morphotropic phase boundary (MPB) has been re-located by shifting Zr/Ti ratio systematically for the piezoceramic. Optimal piezoelectric properties with piezoelectric coefficient d 33 of 341 pC/N, electromechanical coupling factor ( k p ) of 0.51, and mechanical quality factor Q m value of 859 are obtained in MPB compositions of 0.05BiScO 3 –0.05Pb(Mn 1/3 Sb 2/3 )O 3 –0.9Pb(Zr 45.5 Ti 54.5 )O 3 ceramic at room temperature. Furthermore, the addition of BiScO 3 effects profoundly on the temperature dependence of the piezoelectric and ferroelectric properties. Comparing to common Pb(Zr, Ti)O 3 -based piezoceramic, the BS-doped ceramic presents elevating ferroelectric polarization with temperature up to 200 °C, as well as stabilized d 33 , k p , and Q m values from room temperature to 120 °C.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
International Journal of Applied Ceramic Technology
·
2023
·Vol. 21
·期 1
·493-503
·
IF 2.1
Wangzhe Leng,Guoxi Wan,Yanyu Liu,Rui Ma,Yi Du
The new (0.96- x )(K 0.48 Na 0.52 Nb 0.96 Sb 0.04 )O 3 -0.04(Bi 0.5 Ag 0.5 )ZrO 3 - x (Fe 2 O 3 -In 2 O 3 ) ceramics with high dielectric, and electromechanical coupling properties were designed. In this work, the effect of KNN-based ceramics lattice distortion (c/a) and microstructure on the electrical properties was explored by varying the doping amount of Fe 3+ and In 3+ . The problem of a large number of oxygen vacancies generated by the volatilization of K and Na can be well solved by introducing Fe 3+ and In 3+ . The bulk density increases significantly and the maximum value is about 4.52 g/cm 3 .The sample with x = 0.003 has the smallest c/a, and exhibits the best piezoelectric and dielectric properties ( d 33 = 536 pC/N, ε r = 3432 and k p = 55.8 %). Low doping concentration of Fe 2 O 3 is considered a “soft” addition for KNN-based piezoelectric ceramics. The study of this mechanism provides a new idea to regulate the electrical performance of KNN-based ceramics.
研究领域:
材料科学
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陶瓷工程
·
固体物理
✓ 已验证
DOI
高影响因子
Journal of Materiomics
·
2023
·Vol. 10
·期 5
·995-1003
·
IF 9.4
Wei Peng,Jianglei Chang,Jianwei Zhao,Dawei Wang,Zhen Liu,Genshui Wang,Shuxiang Dong
Piezoelectric PZT ceramics with high piezoelectric properties and good thermal stability are urgently desired concerning the practical application. New compositions of LiNbO 3 modified Pb(Ni 1/3 Nb 2/3 )O 3 PbZrO 3 PbTiO 3 ceramics have been prepared in this study. The effects of the introduction of the LiNbO 3 on the system were comprehensively investigated in terms of the phase structure, microstructure, electric properties, and thermal stability behavior of the ceramics. All compositions are located in the morphotropic phase boundary (MPB) region, and the ratio of the rhombohedral (R) phase increases obviously with the increase of LiNbO 3 concentration. With increasing the LiNbO 3 content, the piezoelectric properties were significantly enhanced. The sample added with 2% (in mole) LiNbO 3 shows excellent electric properties, including T m = 185 °C, ε r = 5,643, k p = 0.626, Q m = 51, d 33 = 902 pC/N. More importantly, no thermal depolarization behavior was observed in the temperature range of 25–100 °C. For PNN-PZT- x %LN ceramics, which is mainly attributed to the pinning effect resulted by the Li Pb ' − Nb Zr/Ti ∙ defect dipoles.
研究领域:
材料科学
·
功能陶瓷
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压电材料
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固态物理
·
电子材料
✓ 已验证
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
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功能陶瓷
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压电器件
·
能量采集
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先进制造
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2025
·
IF 5.1
Weili Deng,Tingting Zhou,Wanghong Zeng,Zihan Wang,Yiheng Liu,Boling Lan,Shenglong Wang,Yong Ao,Yue Sun,Shuai Wang,Zhaoyu Li,Long Jin,Weiqing Yang
Wearable piezoelectric sensors have gained significant attention for real-time biomechanical monitoring, yet existing designs often face limitations in sensitivity, durability, and dynamic response. To address these challenges, we develop a wearable sensor utilizing gradient-architected CNT/PMN-PT/PVDF piezoelectric composites for continuous gait monitoring during weight-bearing walking. The sensor features a dual-filler gradient configuration within the poly(vinylidene fluoride) (PVDF) matrix, where strategically distributed carbon nanotubes (CNTs) and lead magnesium niobate-lead titanate (PMN-PT) ceramic particles synergistically enhance electromechanical coupling efficiency. The CNTs-enriched surface layer boosts polarization by facilitating charge injection efficiency, while the gradient-arranged PMN-PT fillers induce stress concentration, further amplifying the piezoelectric output. As a result, the sensor exhibits exceptional performance, with a decent piezoelectric coefficient (d33* = 40 pm/V) and high sensitivity (172 mV/N). Both experimental tests and finite element simulations validate the superior performance of this gradient structure, making it highly effective for real-time kinematic monitoring during weight-bearing walking. This composite-based sensor represents a promising advancement in wearable health technology, with immediate applications in clinical gait analysis, rehabilitation monitoring and sports injury prevention.
研究领域:
材料科学
·
生物医学工程
·
传感技术
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柔性电子学
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人体运动分析
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 36
·30311-30323
·
IF 9.5
Yan Zhu,Guicheng Jiang,Shengpeng Han,Ran Lei,Piqi Song,Yingchun Liu,Shan-Tao Zhang,Danqing Liu,Bin Yang,Wenwu Cao
Lead-based relaxor ferroelectric materials are extensively utilized in various fields such as ultrasonic transducers, sensors, high-precision displacement control, and underwater acoustic detection, owing to their exceptional electrical properties. Nevertheless, the application of lead-based relaxor ferroelectric ceramics in high-end ultrasonic transducers is constrained by their suboptimal electromechanical coupling properties and inadequate overall piezoelectric performance. Here, by employing the strategy of “collaborative design of local structural heterogeneity and texturing”, excellent comprehensive electromechanical properties (d33 = 1310 pC N−1, k33 = 0.87, and TC = 170 °C) were achieved by introducing rare earth Eu3+ ions into [001]PC-textured Pb(Mg1/3Nb2/3)O3–PbZrO3–PbTiO3 (PMN-PZ-PT) ceramics. Their d33 is about 5.5 times that of ordinary ceramic materials without rare earth ion doping. Furthermore, the examination of PFM and relaxor properties reveals that improving relaxor properties in ceramics increases the formation of nano-scale domains, which is directly responsible for their exceptional piezoelectric and electromechanical properties. Nano-scale domain structures are formed as a result of local structural heterogeneity caused by rare earth ion doping and the stress induced elastic field in the texture process. This research will be essential for the continued development and application of high-performance ferroelectric ceramic materials in devices.
研究领域:
材料科学
·
铁电材料
·
压电陶瓷
·
功能材料
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Liang Cao,Jiajia Wang,Feifan Hu,Huihui Liu,Jian Guo,Haoran Yu,Mingyuan Yan,Ji Zhang,Feifei Wang,Yiping Wang,Shan-Tao Zhang
In this work, based on the lanthanide rare earth Sm3+ doped 0.2Pb(Mg1/3Nb2/3)O3-(0.8-x)PbZrO3-xPbTiO3:0.015Sm ceramics with a rhombohedral-tetragonal morphotropic phase boundary (MPB) around x = 0.40, we gradually introduced alkaline earth Ba2+ and Sr2+ at the A-site to substitute Pb2+, namely, 0.2A(Mg1/3Nb2/3)O3-0.4AZrO3-0.4ATiO3:0.015Sm (A = Pb0.99-yBa0.01Sry) and conducted a systematic study on their phase structure, domain configuration, and electrical properties. The results indicate that without alkaline earth substituting, the MPB composition shows peak electrical property with piezoelectric coefficient d33 = 477 pC/N and electromechanical coupling factor kp = 0.59, while an appropriate amount of alkaline earth substituting changes the MPB from rhombohedral–tetragonal coexisting phases to rhombohedral–monoclinic–tetragonal coexisting phases, leading to a significant enhancement in electrical properties with d33 = 687 pC/N and kp = 0.63 around y = 0.03 for comparison. This work classifies the mechanism for alkaline earth substituting enhanced piezoelectric performance and may provide a guide for the development of high-performance lead-based relaxor ferroelectrics.
研究领域:
材料科学
·
陶瓷材料
·
铁电材料
·
固态物理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Xingang Liu,Xi Li,Xingneng Wei,Junyu Chen,Yijun Li,Chuhong Zhang
Porous poly(vinylidene fluoride) (PVDF) attracts considerable attention for mechanical energy harvesting and self-powered systems owing to its exceptional electromechanical coupling capabilities. Supercritical carbon dioxide foaming (SCF) that features solvent-free and green nature is one of the most preferable approaches to construct controllably porous polymers. Nonetheless, the electroactive β-phase of PVDF remains elusive during SCF due to its instability under an elevated temperature. Herein, we pioneer the use of ionic liquid (IL)-assisted SCF for the fabrication of self-polarized β-PVDF piezoelectric foam with tailored cells. IL incorporation not only facilitates CO2 infusion but also catalyzes the formation and preservation of β-phase crystals throughout the SCF process, culminating in a PVDF foam with an exceptionally high β-phase content (98%). Furthermore, the constructed honeycomb-like pore can effectively absorb external forces and significantly amplify the compressive strain, substantially enhancing the piezoelectric output of the PVDF foam. Impressively, PVDF foam with circumferential pore delivers a maximum piezoelectric output of 19.1 V, setting a new benchmark for SCF fabricated PVDF-based foam PEH. This advanced piezoelectric PVDF foam demonstrates significant potential as a flexible sensor for real-time monitoring of human foot pressure, highlighting its utility in adaptive sensing applications.
研究领域:
材料科学
·
高分子科学
·
能量转换与存储
·
纳米技术
·
机械工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Wangzhe Leng,Yanyu Liu,Shu Li,Xinyao Geng,Lu Liu,Yi Du
With the rapid development of broadband transducers, there is an increasing demand for enhanced electromechanical properties in lead-free piezoelectric ceramics. In this study, the strategies to enhance the electrical properties of ceramics were explored by doping BaZrO 3 into 0.96(K 0.48 Na 0.52 )Nb 0.96 Sb 0.04 O 3 -0.04(Bi 0.5 Ag 0.5 )ZrO 3 ceramics, inducing lattice distortion ( c / a ) and regulating the phase structure. The ceramics doped with 1.5 mol% BaZrO 3 demonstrate excellent electrical performance, with a piezoelectric coefficient ( d 33 ) of 545 pC/N, a relative dielectric constant ( ε r ) of 4126, and an electromechanical coupling factor ( k p ) of 54.1 %. The reduced c / a ratio and rhombohedral-orthorhombic-tetragonal phase structure reduce the polarization energy barrier and promote the ordered arrangement of ferroelectric dipoles, thereby enhancing the comprehensive performance of the ceramics. Lastly, the electrical impedance of ceramics is studied in detail and reveals the main conduction mechanism in the microscopic region. This research provides new insights into optimizing the electrical properties of ceramics through microstructural manipulation and demonstrates the potential application of KNN-based ceramics in high performance piezoelectric transducers.
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）