CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Yushan Deng,Xi Ouyang,Manwen Yao,Xi Yao
Heterovalent ion doping has influenced the further development of piezoelectric applications. Pr 3+ doping in relaxor ferroelectrics is rarely focused on piezoelectric performance enhancement. 0.51 Pb(Ni 1/3 Nb 2/3 )O 3 -0.49 Pb(Hf 0.3 Ti 0.7 )O 3 (PNN-49PHT) ceramics with Pr 3+ doping ceramics were designed and fabricated by a two-step precursor method. Excellent dielectric diffusion coefficient ( γ ) of 1.96 was achieved at the low Pr 3+ doping concentration of 0.2 %. Increased relaxation enhanced the nanoscale domains formation, resulting in a giant strain response ( d* 33 ) of 1400 pm/V at 10 kV/cm, and a total strain ( S tol ) of 0.27 % at 20 kV/cm. Structural refinement unveiled that the high piezoelectricity originated from the mainly substitution of Pr 3+ for Pb 2+ at the A-site, inducing lattice distortion and phase transitions. Local domain switching and long-range ordered destruction were investigated by piezoresponse force microscopy (PFM) and Scanning Electron Microscopy (SEM). These findings contribute to the advancement of piezoelectric devices and provide valuable insights for the design and optimization of high-performance piezoelectric ceramics .
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2023
·
IF 5.7
Mengdi Cheng,Mo Zhao,Shiyi Zhang,Yangxi Yan,Zhimin Li,Pangpang Wang,Ri-Ichi Murakami,Dongyan Zhang
High-performance piezoelectric materials are widely used in electromechanical applications such as sensors, actuators, and transducers. Herein, improvement in electrical properties of Pb(Ni 1/3 Nb 2/3 )O 3 −Pb(In 1/2 Nb 1/2 )O 3 −PbTiO 3 relaxor ferroelectrics by modulating the polymorphism of nano-scale domain is reported, and piezoelectric coefficients d 33 and d 33 * as high as 948 pC/N and 1108 pm/V, respectively, are achieved. The high piezoelectric response is elucidated by combining cryogenic dielectric , Rayleigh analysis, and scanning electron microscopy with piezoresponse force microscope. During the transition from the tetragonal to rhombohedral phase, the morphology of the ferroelectric domains changes significantly, mesoscopic domain destruction is observed, and thus nano-scale domains appear as an extrinsic contribution of piezoelectricity. In addition, nano-scale domains promote polarization rotation, thus, improving the piezoelectric response. The improved piezoelectric performance demonstrates good thermal stability, retaining the inverse piezoelectric coefficient of approximately 1000 pm/V near 70 °C. This work provides a good example of improving ceramics' piezoelectric response by modulating the polymorphism of nanoscale domains.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
Scientific Reports
·
2016
·Vol. 6
·期 1
·1-12
·
IF 5.228
Huan Yu,Wang Xiaohui,Koruza Jurij,Wang Ke,Webber Kyle G.,Hao Yanan,Li Longtu
Miniaturization of domains to the nanometer scale has been previously reported in many piezoelectrics with two-phase coexistence. Despite the observation of nanoscale domain configuration near the polymorphic phase transition (PPT) regionin virgin (K 0.5 Na 0.5 )NbO 3 (KNN) based ceramics, it remains unclear how this domain state responds to external loads and influences the macroscopic electro-mechanical properties. To this end, the electric-field-induced and stress-induced strain curves of KNN-based ceramics over a wide compositional range across PPT were characterized. It was found that the coercive field of the virgin samples was highest in PPT region, which was related to the inhibited domain wall motion due to the presence of nanodomains. However, the coercive field was found to be the lowest in the PPT region after electrical poling. This was related to the irreversible transformation of the nanodomains into micron-sized domains during the poling process. With the similar micron-sized domain configuration for all poled ceramics, the domains in the PPT region move more easily due to the additional polarization vectors. The results demonstrate that the poling process can give rise to the irreversible domain configuration transformation and then account for the inverted macroscopic piezoelectricity in the PPT region of KNN-based ceramics.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2023
·
IF 5.4
Zhiwei Li,Zhengxiang Bian,Yurong Ren,Zhihui Chen,Jiujun Xu
(1-x)(0.9Ba 1.003 Ti 0.97 Ca 0.03 O 3 –0.1(Bi 0.51 Na 0.47 ) 0.94 Ba 0.06 TiO 3 )-xNa(Nb 0.85 Ta 0.15 )O 3 ( x = 0.03–0.15) ceramics were designed and fabricated through a bidirectional optimization strategy using traditional solid reaction method. The results revealed that the introduction of Na(Nb 0.85 Ta 0.15 )O 3 increased the vacancy concentration at the A site , conducing to improved polarization and reduced grain size. The substitution at the B site disrupted the long-range ordered ferroelectric domains and generated polar nanodomains, leading to enhanced relaxation behavior. The optimum energy storage density of 3.57 J/cm 3 and efficiency of 87.5% were simultaneously achieved under the electric field of 220 kV/cm in the sample with x = 0.09. Moreover, it also exhibits extremely high-power density (∼57 MW/cm 3 ), ultrafast discharge time (∼103 ns), high discharge density (1.35 J/cm 3 ), along with excellent temperature (30‒120 °C) and frequency stability (1‒100 Hz) under the equivalent electric field of 120 kV/cm. This novel design strategy provides theoretical guidance for the development of advanced electrical energy storage devices.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2021
·
IF 5.302
Shengdong Sun,Ye Liu,Yueyun Zhang,Lu Wang,Shiqing Deng,Yang Ren,He Qi,Hui Liu,Jun Chen
Improving piezoelectric performance is always favorable to further enhance the sensitivity and accuracy of piezoelectric devices. Here, a complex piezoelectric system of Pb(Ni 1/3 Nb 2/3 )O 3 -Pb(Yb 1/2 Nb 1/2 )O 3 -Pb(Hf 0.1 Ti 0.9 )O 3 is designed and investigated in detail. Optimized piezoelectric response of ∼ 880 pC/N is achieved at the composition of 0.51PNN-0.09PYN-0.40PHT. The characterization of TEM and In-situ high-energy synchrotron diffraction indicate that nanodomain growth and microdomain switching occurs in succession at around coercive electric field. Most interestingly, the coexisted tetragonal and rhombohedral-like phase transforms into multiple monoclinic-like phases with polarization vectors aligned as close to the electric field direction as possible under the strong electric field. The enhanced polarization instability in this complex morphotropic phase boundary sample should be ascribed to the strong local heterogeneity. The novel polarization rotation behavior found in this work would be important guidance for designing high-performance piezoceramics.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2020
·Vol. 103
·期 11
·6435-6444
·
IF 3.502
Zhuo Yu,Jiangtao Zeng,Liaoying Zheng,Wenbing Liu,Guorong Li,Abdelhadi Kassiba
The requirement for ferroelectric ceramics with a high Curie temperature and a high piezoelectric coefficient remains an important research task for high-temperature sensors and actuators applications. (0.76-x)BiFeO 3- 0.24 PbTiO 3- x Ba(Sn 0.2 Ti 0.8 )O 3 (BF-PT-BST) piezoelectric ceramics were fabricated using the solid-state reaction method. XRD analysis indicated that the incorporation of large ionic radius Ba 2+ at A-site and nonferroelectric-active Sn 4+ at B-site generated a decrease in the tetragonality degree c/a. A wide multiphase coexistence region was formed with the content of BST ranging from 0.13 to 0.28. The enhanced piezoelectric coefficient ( d 33 ~ 200pC/N) was achieved while maintaining a high Curie temperature ( T C ~ 500°C) and a high depolarization temperature ( T d ~ 450°C) for the composition of 0.6BF-24PT-0.16BST. TEM patterns provided clear evidence for the presence of nanodomains (~2nm) would be the predominant source for the enhanced piezoelectricity for the composition x = 0.20. The designed BF-PT-BST ternary system provides great potential for high-temperature piezoelectric applications.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Hang Xie,Hongliang Du,Linjing Liu,Qiangwei Kou,Jiwen Xu,Yuan Sun,Rui Lv,Yunfei Chang,Dawei Wang
Lead-free dielectric ceramics with high energy storage performance (ESP) are strongly desired for pulse power capacitor applications. However, low recoverable energy storage density ( W rec ) under low electric fields seriously hinders their applications in miniatured and integrated electronic devices. In this work, we adopted a synergism strategy to develop (Bi 0.5 Na 0.5 ) 0.7 Sr 0.3 Ti (1- x ) (Al 0.5 Nb 0.5 ) x O 3 (BNST- x AN) ceramics with substantially enhanced low-field ESP through combining composition design and tape-casting approaches. Complex-ion substitution of (Al 0.5 Nb 0.5 ) 4+ for Ti 4+ shifted the temperature of maximum dielectric constant towards room temperature direction, made relaxor behavior stronger and promoted formation of highly dynamic nanodomains, thus reducing the remanent polarization. Besides, refined submicron grains and improved densification behavior were achieved in those ceramics fabricated by tape casting, further increasing the breakdown strength. Consequently, a large W rec of 4.30 J/cm 3 was achieved at a low electric field of 230 kV/cm at x = 0.10, which is superior to previously reported lead-free energy storage ceramics under low electric fields. Moreover, our ceramics exhibited brilliant thermal endurance (20–140 °C) and frequency stability (0.2–200 Hz) together with fast discharge speed. These characteristics suggest the great potential of the BNST-0.10AN ceramic for low-field and high-performance energy storage capacitor applications.
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
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Hongtian Li,Jianwei Zhao,Yong Li,Longyu Chen,Xiaoxin Chen,Hailan Qin,Huanfu Zhou,Peifeng Li,Jinming Guo,Dawei Wang
Piezoelectric ceramics, as essential components of actuators and transducers, have captured significant attention in both industrial and scientific research. The “entropy engineering” approach has been demonstrated to achieve excellent performance in lead-based materials. In this study, the “entropy engineering” approach was employed to introduce the morphotropic phase boundary (MPB) into the bismuth ferrite (BF)-based lead-free system. By employing this strategy, a serial of novel “medium to high entropy” lead-free piezoelectric ceramics were successfully synthesized, namely (1–x)BiFeO3–x(Ba0.2Sr0.2Ca0.2Bi0.2Na0.2)TiO3 (BF–xBSCBNT, x = 0.15–0.5). Our investigation systematically examined the phase structure, domain configuration, and ferroelectric/piezoelectric properties as a function of conformational entropy. Remarkable performances with a largest strain of 0.50% at 100 kV/cm, remanent polarization ∼40.07 μC/cm2, coercive field ∼74.72 kV/cm, piezoelectric coefficient ∼80 pC/N, and d*33 ∼500 pm/V were achieved in BF–0.4BSCBNT ceramics. This exceptional performance can be attributed to the presence of MPB, coexisting rhombohedral and cubic phases, along with localized nanodomains. The concept of high-entropy lead-free piezoelectric ceramics in this study provides a promising strategy for the exploration and development of the next generation of lead-free piezoelectric materials.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yang Li,Wei Lin,Bo Yang,Fei Guo,Shifeng Zhao
A giant negative electrocaloric effect with the electrocaloric temperature change range from −27.3 to −9.8 K over an ultra-wide temperature region of 260 K (−180 to 80 °C) is obtained in a relaxation frozen state ferroelectric film of Bi5Ti3AlO15. A strategy is proposed to extend the temperature region of the electrocaloric effect by gradually slowing and locally freezing the relaxation dynamics. The slow and frozen nanodomains below freezing temperature Tf of ∼80 °C do not yield to the applied electric field but are noncolinear to the field, which results in an inverse configuration entropy change and negative electrocaloric effect over an ultra-wide temperature region in frozen relaxor state ferroelectric films. A semiphenomenological model based on modified Ginzburg–Landau–Devonshire theory is presented to reveal the evolution of the slowing and freezing of the nanodomains. The breakthroughs in the operating temperature region and cooling temperature change make relaxation frozen state ferroelectrics excellent electrocaloric refrigeration materials.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Huanghui Nie,Limei Ruan,Lu Hu,Xinran Wang,Fukang Chen,Shuai Zhou,Yangyang Wang,Taotao Ai,Yan Yan,Gang Liu
(1- x ) (0.98Na 0.5 Bi 0.5 TiO 3 –0.01BaTiO 3 –0.01BiFeO 3 )– x CaTiO 3 (NBB- x CT) ceramics were produced using traditional solid-state synthesis methods. The surface morphology , domain structure, and electrical properties of the ceramic samples were systematically studied. In addition, the temperature and frequency stabilities of the NBB-15CT sample at 200 kV/cm were tested. Generally, NBB- x CT ceramics exhibit a typical single perovskite phase structure. The results indicate that the NBB-15CT ceramics showed a high energy density of 3.14 J/cm 3 at 250 kV/cm. The piezoresponse force microscopy (PFM) results showed that the addition of CT broke the macrodomains of the 0.98Na 0.5 Bi 0.5 TiO 3 -0.01BaTiO 3 -0.01BiFeO 3 ceramic and helped to form nanodomains, leading to an improved energy storage performance. The above performance indicates that the specimens possess very good temperature-and frequency-dependent energy storage performances at 30–150 °C and 1–100 Hz. Moreover, the electric energy storage and release in the NBB-15CT ceramic indicated that the power density could reach 55.30 MV/cm 3 at 180 kV/cm. Therefore, the NBB-15CT ceramic is a promising material for electrical capacitors.
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
·
2024
·
IF 5.1
Xinyu Liu,Taotao Ai,Xinyu Chen,Qin Li,Qian Qiu,Ying Zheng,Yuan Zhou,Haikui Song,Kun Yu,Chunlin Song,Haibo Zhang,Gang Liu,Yan Yan
In recent years, lead-free Bi 0.5 Na 0.5 TiO 3 (BNT) based piezoelectric ceramics with excellent strain properties have gained widespread recognition for their application in high-precision displacement actuators. The (1- x )(0.82Bi 0.5 Na 0.5 TiO 3 -0.18K 0.5 Bi 0.5 TiO 3 )- x Ba(Fe 0.5 Sb 0.5 )O 3 ceramics were fabricated through the die-pressing method in this work. The effect of BFS introduction on the dielectric, ferroelectric and microstructure characteristics of BNKT ceramics was systematically investigated. Among these compositions, the BNKT-0.015BFS ceramics exhibited a piezoelectric strain coefficient ( d 33 *) of 658 pm/V at an electric field of 55 kV/cm, while achieving a strain response of 0.51 % at 85 kV/cm. The observed improvement in strain performance can be attributed to the evolution from non-ergodic relaxor state to ergodic relaxor state caused by BFS substitution. Furthermore, transmission electron microscopy (TEM) explicitly confirmed coexistence of rhombohedral and tetragonal phase and revealed the morphology of nanosized domains. This study adds to a deeper comprehension of the characteristics of strain response enhancement in BNT-based ceramics, opening up avenues for designing novel lead-free piezoelectric ceramics with outstanding electromechanical performance.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
Mengdi Cheng,Dongyan Zhang,Yangxi Yan,Zhimin Li,Pangpang Wang,Ri-ichi Murakami
Piezoelectric materials with unique properties are hugely appealing for high sensitivity sensors and ultrasonic transducers. Here, Pb(Ni 1/3 Nb 2/3 )O 3 -Pb(Yb 1/2 Nb 1/2 )O 3 -PbTiO 3 piezoelectric system was designed and investigated in detail. The optimized piezoelectric response ( d 33 = 826 pC/N, d 33 * = 1017 pm/V) together with good temperature stability and negligible performance degradation up to 10 6 cycles was achieved in 0.58PNN-0.10PYN-0.32PT composition. Rayleigh analysis revealed the amplification of intrinsic and extrinsic contributions in MPB region due to more spontaneous polarization orientations and an increase in chemical disorder of system after the introduction of PYN. The origin of high piezoelectric response was investigated through the combination of scanning electron microscopy and piezoresponse force microscopy. The diversity of B -site cations was shown to enhance local structural heterogeneity, weaken long-range ferroelectric ordered domains, and lower free energy barrier via the formation of nanodomain configuration that promoted polarization rotation, thereby improving piezoelectric properties of the material. Therefore, it is suggested that increasing the diversity of B -site cations is an effective strategy for achieving outstanding piezoelectric performance.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）