JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 106
·期 3
·1921-1931
·
IF 4.186
Jun Chen,Changrong Zhou,Kelin Chen,Qingning Li,Changlai Yuan,Jiwen Xu,Shuai Cheng,Jingtai Zhao,Guanghui Rao
One of the inherent disadvantages of Bi 0.5 Na 0.5 TiO 3 -based (BNT-based) piezoceramics is that an increment of the depolarization temperature ( T d ) is generally accompanied by a deterioration of the temperature stability of the real-time piezoelectric constant ( d 33 ), which severely restricts the practical applications of the materials. Herein, we propose a new strategy to mitigate the conflict between the elevation of T d and the temperature stability of the real-time d 33 in BNT-based ceramics via integrating the pressure-assisted sintering and quenching process. By this strategy, we not only increased the T d from 109 to 166°C but also improved the temperature stability of the real-time d 33 (the temperature coefficient T tc = ± 13 pC/N) in 0.94Bi 0.5 Na 0.5 TiO 3 –0.06BaTiO 3 ceramic. Both the built-in field and the increment of the field-induced R 3 c phase fraction play the significant role in enhancing the T d and the temperature stability of the real-time d 33 . Thus, our work provides a simple and effective approach for designing piezoceramics with high T d and a superior temperature stability of the real-time d 33 .
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2022
·Vol. 33
·期 31
·24038-24047
·
IF 2.779
Yu Tengfei,Jiang Subin,Qiao Yi,Liu Feng,Yang Baojuan,Gao Meizhen
High-performance 0.7Bi 1.02 FeO 3 –0.3BaTiO 3 ceramics are prepared by traditional solid-state method with annealing. The effect of annealing temperature ( T A ) on the piezoelectric properties of ceramics are revealed by studying the crystal structures, ferroelectric properties, and electrical properties of the as-sintered ceramic and ceramics annealed at 600, 700, 800, and 900 °C. Through the analysis, we found that T A has little influence on the morphology and crystal structure of ceramics, all ceramics are two-phase ( R-PC ) coexistence structures. But T A relates to the concentration of charge defects. When annealing at 800 °C, the charge defects in the ceramic are the least. Therefore the best performance ( d 33 = 202 \(\pm\) 3 pC/N, T C = 496 °C) ceramic is obtained. Our experiments demonstrate that the charge defects induced by annealing temperature are very important to the piezoelectricity of BFO–BTO ceramics.
研究领域:
材料科学
·
电陶瓷
·
固体物理
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2015
·
IF 2.605
J.C. Wang,P. Zheng,R.Q. Yin,L.M. Zheng,J. Du,L. Zheng,J.X. Deng,K.X. Song,H.B. Qin
Four groups of barium titanate (BaTiO 3 ) ceramics with high piezoelectric coefficient have been successfully fabricated from different raw materials. Their average grain size ( g ) dependences of the piezoelectric coefficient d 33 were systematically studied. It was found that for two groups of BaTiO 3 ceramics, d 33 firstly increases and then decreases with the increase of g , with a maximum d 33 of 449 pC/N and 501 pC/N respectively at approximately 1 µm grain size, while for the other two groups of BaTiO 3 ceramics, d 33 keeps increasing with the increase of g . The highest d 33 of 401 pC/N and 424 pC/N were obtained when g is larger than 50 µm. The experimental results indicated that piezoelectric grain size effect in BaTiO 3 ceramics may be not absolute. Possible mechanisms arising from differences in domain configuration were discussed.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
FERROELECTRICS
·
2021
·
IF 0.62
Huiting Liu,Chengzhi Lu,Dun Wu,Chunlin Liu,Zheng Cao,Junfeng Cheng
Acrylic resin and PLZT (Pb0.910La0.060 (Zr0.580Ti0.420)0.975Nb0.020O3.000) powder were mixed to prepare PLZT/acrylic resin thermosetting feedstock. Injection molding is used to form high-strength PLZT piezoelectric ceramic embryos then sintered to piezoelectric materials. The experimental results showed that the residual polarization is higher at 85% solid content of the feed and the d33 value increased. And the PLZT powder coated with stearic acid can improve the piezoelectric and ferroelectric properties of powder injection molded piezoelectric ceramics. Tests above are intended to provide preliminary exploration for thermal curing injection molding and thermal curing 3 D printing piezoelectric ceramics.
研究领域:
材料科学
·
陶瓷工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 28
·56185-56193
·
IF 5.6
Jinxin Fu,Changrong Zhou,Jun Chen,Huihui Liu,Hao Yang,Qingning Li,Changlai Yuan,Jiwen Xu,Guanghui Rao
The incomplete preferred orientation polarization and partially back-switching reoriented domains during/after poling with electrical loading and unloading were ubiquitous and suppressed both piezoelectric constant ( d 33 ) and depolarization temperature ( T d ) of piezoelectric ceramics. In this work, a simple poling strategy with multi-cycles of AC electric field is proposed to realize polarization wake-up in unmodified 0.92Bi 0.5 Na 0.5 TiO 3 -0.08BaTiO 3 (BNT-8BT) with significantly enhanced d 33 from 65 pC/N to 161 pC/N and high T d of 200 °C simultaneously. Through comprehensive analysis on the polarization wake-up and polarization switching process, it is demonstrated that remarkably improved d 33 originates from AC cycles poling induced coexistence of P 4 bm and P 4 mm phases, depinned domains and defect dipoles orientation polarization. The internal bias field (E i ) resulted from defect dipoles orientation aids the d 33 and its high temperature stability. Our work provides a convenient and inexpensive method that there need not commonly delicate compositions control in lead-free piezoceramics on advancing to alleviate the trade-off between d 33 and T d .
研究领域:
材料科学
·
功能陶瓷
·
压电材料
·
固态物理
·
无铅压电体
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 36
·1-9
·
IF 2.8
Fu Jinxin,Zhou Changrong,Chen Jun,Yu Dongyan,Wu Di,Li Qingning,Yuan Changlai,Xu Jiwen,Rao Guanghui
The incompatibility of the large piezoelectric response ( d 33 ) and high depolarization temperature ( T d ) in lead-free piezoelectric ceramics limited their practical applications. The most used modification methods for improving d 33 or T d commonly required a delicate control of complex compositions. Here, a strategy for simply changing the sintering temperature is used to defer the T d and increase d 33 simultaneously. The T d and d 33 of unmodified Bi 0.5 Na 0.5 TiO 3 -0.2Bi 0.5 K 0.5 TiO 3 (BNKT20) ceramics increase with increasing sintering temperature until both of them reach the maximum ( d 33 ~ 174pC/N, T d ~ 177 °C) at the sintering temperature of 1100 °C. In-depth analysis unveils the critical role of multiphase coexistence and oxygen vacancies in enhancing T d by optimizing sintering temperature. Meanwhile, increasing sintering temperature promotes large grain size with easy domain orientation, thus, yielding the improved d 33 . This work provides a simple and effective method to broaden the working range of Bi 0.5 Na 0.5 TiO 3 -based (BNT) piezoelectric ceramics at high temperature under the premise of realizing high piezoelectric properties.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Dongyan Yu,Yong Zhang,Changrong Zhou
Achieving a high piezoelectric coefficient ( d 33 ) together with a relatively large depolarization temperature ( T d ) in Bi 0.5 Na 0.5 TiO 3 -based (BNT-based) ceramics remains challenging due to the inherent seesaw effect between T d and d 33 , where an enhancement in one typically compromises the other. Herein, an effective strategy of designing the two-step sintering is proposed to build the multi-shaped ferroelectric domains to broaden the phase transition peak between ferroelectric state (FEs) and relaxor state (REs), thereby circumventing the temperature-driven ferroelectric pinching behavior in 0.93Bi 0.5 Na 0.5 TiO 3 -0.07BaTiO 3 ceramic. By this strategy, the BNT-7BT ceramic exhibited a marked increase in T d from 77 °C to 110 °C, alongside excellent temperature stability in the real-time d 33 (the d 33 increases only from 190 pC/N to 200 pC/N over the temperature range of 30-100 °C). High d 33 originates from the morphotropic phase boundary (MPB) with the coexistence of rhombohedral ( R 3 c ) and tetragonal ( P 4 bm ) phases, as well as refinement of ferroelectric domains. The enhanced thermal stability arises from an appropriate R3c/P4bm phase ratio and the broader FEs-REs phase transition peak. Therefore, this work presents a viable avenue for mitigating the seesaw effect between T d and d 33 in BNT-based piezoceramics.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·
IF 6.3
Decheng Kong,Zhanhui Peng,Qizhen Chai,Yuanhao Wang,Di Wu,Lingling Wei,Pengfei Liang,Zupei Yang,Xiaolian Chao
In recent years, there have been many significant breakthroughs in the research of potassium sodium niobate (KNN) based piezoelectric ceramics, positioning them as promising candidates for high-temperature piezoelectric device applications. To achieve synergistic optimization of high piezoelectric performance and high Curie temperature, the composition was designed to lie within the orthorhombic-tetragonal (O-T) phase coexistence region at room temperature by regulating the K/Na ratio, while the overall lattice stability was preserved. Our results show that the 0.96(KₓNa 1-x )(Nb 0.98 Sb 0.02 )O 3 -0.04Bi 0.5 Li 0.5 HfO 3 ceramic at x = 0.48 exhibits a high inverse piezoelectric constant of ~1383 pm/V and a strain of 1.32%, which are primarily attributed to the reduced polarization switching barrier enabled by the O-T phase coexistence at room temperature. Meanwhile, the local structural heterogeneity introduced by Sb 5+ and Hf 4+ doping further enhances the electrical strain response. Notably, the ceramic maintains a high Curie temperature of 276 °C, governed by the intrinsic lattice stability without significant compromise, confirming its great potential for high-temperature piezoelectric device applications.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Junhui Lang,Mingwang Yuan,Yingzhi Meng,Silin Tang,Biao Zhang,Qingqing Ke,Laijun Liu
Piezoelectric energy harvesters (PEHs) have attracted much attention due to their efficient harvesting of vibrational energy from the ambient environment, which demonstrates great potential applications. Unfortunately, their low energy density severely hinders the further development of PEHs. Therefore, it is highly desirable to search for piezoelectric materials with a high transduction coefficient (d33 × g33). In this work, an excellent d33 × g33 is achieved in Pb0.94(La0.06-xNdx) (Zr0.58Ti0.42)0.985O3 (x = 0, 0.01, 0.02, 0.03, and 0.04) (PL0.06-xNxZT) ceramics by composition modulation. The best d33 × g33 of 26.71 pm2/N is obtained with an optimal composition of x = 0.02. Moreover, a superior output voltage of 28.4Vp and power density of 15.93 μW/mm3 are simultaneously obtained for the sample applied in the PEH system. The sizes of the polar nanodomains of the samples are estimated using a phenomenological statistical model, and the domain configuration is observed using PFM. Our results indicate that composition modulation in PLZT can regulate and awaken ferroelectric domains, giving rise to an ultrahigh d33 × g33, which consequently results in enhanced performance of the output voltage and power density of PEHs.
研究领域:
材料科学
·
压电能量收集
·
陶瓷
·
功能材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2021
·
IF 5.302
Lang Bian,Xudong Qi,Kai Li,Jinhui Fan,Zhanmiao Li,Enwei Sun,Bin Yang,Shuxiang Dong,Wenwu Cao
Ternary 0.552Pb(Ni 1/3 Nb 2/3 )O 3 -xPbZrO 3 -(0.448-x)PbTiO 3 (PNN-PZ-PT) ceramics near the triple point compositions were fabricated by an improved two-step sintering method. The triple point composition 0.552PNN-0.135PZ-0.313PT ceramic has outstanding piezoelectric performance with piezoelectric coefficient d 33 = 1200 pC/N. Its easy fabrication and low cost make this piezoelectric material an excellent candidate for high sensitivity sensors and ultrasonic transducers. The evolution of domain structures for ceramics with composition near the triple point provides deeper insight into the mechanism of ultrahigh piezoelectric properties of PNN-PZ-PT ceramics.
研究领域:
材料科学
·
电陶瓷
·
压电材料
·
传感器与执行器
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Jun Chen,Changrong Zhou,Huihui Liu,Qingning Li,Changlai Yuan,Jiwen Xu,Jiang Wang,Jingtai Zhao,Guanghui Rao
An imminent challenge of lead-free Bi0.5Na0.5TiO3-based (BNT) piezoceramics is that the giant piezoelectric constant (d33) caused by the morphotropic phase boundary is incompatible with a high depolarization temperature (Td) and ultralow temperature coefficient (Ttc) of the real-time d33, which severely hinders their industrial application in the field of elevated temperatures. Herein, a sandwich-structured 0.94Bi0.5Na0.5TiO3–0.06BaTiO3/0.89Bi0.5Na0.5TiO3–0.11BaTiO3/0.94Bi0.5Na0.5TiO3–0.06BaTiO3 (SWS-6/11/6BT-y, where y refers to the weight fraction of the BNT-11BT solid solution) ceramic composite is engineered for mitigating the conflict between d33, Td and Ttc. Following this strategy, ultrahigh Td near the Curie point (225 °C, close to that of the BNT-11BT layer) and relatively large d33 (130 pC/N, close to that of the BNT-6BT layer) are simultaneously realized in a SWS-6/11/6BT-40%-Q ceramic composite. More importantly, the ultralow Ttc (0.07%) of real-time d33 is also achieved in this work. The structural heterogeneity yields the high piezoresponse, and the built-in field resulting from layer-type ceramic composites provides the driving force to promote the diffused ferroelectric–relaxor phase transition and the resultant ferroelectric order with high Td. The above synergistic contributions realize the remission of the d33–Td–Ttc conflict in a sandwich-structural SWS-6/11/6BT-40% ceramic composite. Thus, our work provided a path for designing the BNT-based piezoceramics with potential for industrial applications.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2023
·Vol. 107
·期 5
·3219-3229
·
IF 3.9
Hongtao Li,Rongxia Huang,Hua-Tay Lin,Zuchao Du,Yejing Dai
This research investigated the effect of Bi 4 Ti 3 O 12 (BiT) template particles size on the structure and piezoelectric properties of 〈001〉-textured (Bi 0.5 Na 0.5 )TiO 3 (BNT)-based lead-free piezoelectric ceramics. Results of X-ray diffractometer analyses and scanning electron microscopy observations showed that high purity BiT template particles could be obtained with the KCl as the molten salt system. Highly 〈001〉-textured (~87%) BNT-based ceramics prepared with large size BiT templates (7.75 µm) exhibited a high inverse piezoelectric constant d 33 * (1100 pm/N), which was ∼3.38-fold larger than that with 1.91 µm (325 pm/N). In addition, we have found that too small the template size can make it difficult to align the orientation of the template during the casting process, whereas too large the size can create problems such as too much hysteresis (∆ S / S max = 67%). This study has demonstrated that the use of high purity large size BiT template particles could provide a feasible route to fabricate BNT-based textured ceramics with desired electro-strain properties.
研究领域:
材料科学
·
陶瓷
·
压电材料
·
取向陶瓷
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）