CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Shengdong Sun,Hui Liu,Longlong Fan,Yang Ren,Xianran Xing,Jun Chen
Grain size effect plays a vital role in piezoelectric performance from both scientific and technological view. However, the underlying structural mechanism related to grain size is still unclear. In the present study, the structural mechanism of grain size effect on piezoelectric performance has been revealed in the prototype Pb(Zr,Ti)O 3 system by using in-situ synchrotron X-ray diffraction. The miniaturization of grain size tends to favor the appearance of higher symmetric tetragonal phase, while a single monoclinic phase is determined in the coarse-grained ceramics. The direct structural evidence reveals that both tetragonal and monoclinic phases in the fine-grained ceramics are less sensitive to the electric field, corresponding to the inferior piezoelectric performance, while the single monoclinic phase in the coarse-grained ceramics is more active to be driven by the electric field, generating good piezoelectric behavior. Both domain switching ability and lattice strain are suppressed with decreasing grain size, which directly leads to the deterioration in piezoelectric performance. The current results will benefit the structural understanding of the size effect of piezoelectric and other related systems.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2022
·
IF 10.319
Linjing Liu,Bin Yang,Rui Lv,Qiangwei Kou,Shuai Yang,Hang Xie,Yuan Sun,Yunfei Chang,Shan-Tao Zhang,Fei Li
Piezoceramics with high and fatigue-resisted piezoelectric properties are strongly desired for actuator applications. In this work, textured Pb(Mg 1/3 Nb 2/3 )O 3 -Pb(Zr, Ti)O 3 ceramics with Lotgering factor F 001 ∼98% were fabricated by templated grain growth technique. Strong [001] c -grain orientation ( f ∼90% and r ∼0.22) of the textured ceramics effectively produced about 230% enhanced piezoelectric coefficient d 33 * (i.e., S max / E max ) and substantially improved unipolar electrical fatigue resistance. Unipolar polarization P max and d 33 * of the textured ceramics were nearly maintained up to 10 6 unipolar cycles, while 19% and 14% degradations were respectively observed from randomly oriented counterparts. Especially, normalized d 33 * of the textured ceramics shows better unipolar fatigue resistance than those of piezoceramics reported previously. Much lower bipolar strain asymmetry γ s (∼4%) was observed from the textured samples fatigued after 10 6 unipolar cycles as compared to γ s ∼23% for randomly oriented counterparts. While charged defect accumulation model described the serious fatigue deteriorations in randomly oriented ceramics, the current work revealed that substantially enhanced unipolar fatigue resistance of the textured ceramics is mainly associated with the inherent fatigue anisotropy, weakened local bias fields owing to both enhanced domain mobility and lower defect density near grain boundaries/interfaces, and increased intrinsic contribution due to more tetragonal content. These superior characteristics suggest the great potential of textured ceramics for high-performance and robust actuator applications.
研究领域:
材料科学
·
物理学
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 24
·1-13
·
IF 2.8
Rafiq Muhammad Nasir,Dai Zhonghua,Zheng Yuanyuan,Li Xujun,Liu Chenxi,Zhao Xin,Cong Yu,Gu Shuitao
The performance of lead-based ceramics in energy storage applications is often hindered by their low energy density and inadequate phase transition properties. The (Pb, La) (Zr, Sn, Ti)O 3 (PLZST) antiferroelectric ceramics have attracted much attention as energy storage materials. In this work, ceramics Pb 1−1.5 x La x (Zr 0.93 Sn 0.05 Ti 0.02 )O 3 at ( x = 0.015, 0.025, 0.035, and 0.045) were prepared using a solid-state method, and their dielectric and energy storage characteristics were studied. It was observed that integrating lanthanum significantly improved the perovskite structure, reducing grain size and boosting the polarization intensity. In this present study, a recoverable energy storage density ( W rec ) of 6.24 J/cm 3 was achieved under an electric field of 270 kV/cm. Moreover, these ceramics demonstrated an impressive discharge energy density ( W dis ), with 90% of the energy released within 1.29 μs. The outcomes show that PLZST is a highly effective material for advanced energy storage, pulse power applications, and paving the way for technological advancements.
研究领域:
材料科学
·
陶瓷
·
能量存储
·
固体物理
·
介电材料
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2025
·Vol. 18
·期 3
·512
·
IF 3.2
Zechi Ma,Zixuan Yuan,Zhonghua Yao,Jiangxue Chen,Hua Hao,Minghe Cao,Hanxing Liu
Piezoelectric materials (PZTs) enjoy extensive applications in the field of electromechanical sensors due to their sensitive response to external electric fields. The limited piezoelectric response for single-layer piezoceramic pellets drives the use of multilayered technology to increase the electric displacement of a single piezo device. As is well known, Ag is commonly used as a metal for electrodes in devices based on traditional PZTs, which always densify at a high temperature above 1100 °C, resulting in Ag migration. Here, a high-performance samarium-ion-doped Sm0.01Pb0.99(Zr0.54Ti0.46)O3ceramic was selected as parent materials to develop a new Ag-cofired ceramic matrix with a sintering temperature of 920 °C by glass flux. The ceramic composition with 2.0 wt% glass addition exhibits the excellent performance of piezoelectricd33~492 pC/N, planar electromechanical coupling coefficientkp~50.1%, mechanical quality factorQm~68.71, and Curie temperatureTc~356 °C, respectively. The cyclic stability ofd33was measured below 6.6% at 30 kV/cm, which indicates that the piezoceramic has good temperature stability and fatigue resistance. Therefore, this study provides a novel high-performance piezoelectric system to meet the cofired requirement for multilayered piezoelectric devices.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2015
·Vol. 41
·期 5
·6676-6682
·
IF 2.605
Pei Peng,Ya-Ya Hu,Yong Liu,Shi Chen,Jing Shi,Rui Xiong,Yue Zhang
Magnetoelectric (ME) ceramic composites of CoFe 2 O 4 (CFO) and Pb(Zr,Ti)O 3 (PZT) with varied composition ratios were sintered using a spark plasma sintering (SPS) method. The characterization of the ceramic compositions and morphologies revealed an even distribution of the CFO and PZT phases. Physical property measurements showed that when the CFO mass percent increased from 8% to 15%, the piezoelectric constant and dielectric constant decreased monotonously, while the saturation magnetization and dielectric loss were enhanced. It was determined that a CFO mass percent of 10% or less resulted in a significant change of the polarization behaviour and a clear enhancement of the ME conversion voltage coefficient ( α E ) with an applied magnetic field . In contrast, CFO mass percentages greater than 10% had a reduced α E , and their polarization behaviour was not influenced by an applied magnetic field. With an increasing proportion of CFO in the composite, the α E first increased and then decreased. The maximum value of the α E indicated an optimal proportion of CFO (10%), which is attributed to a competition between the improved magnetostriction and deteriorating electric behaviour in the composite with the addition of CFO.
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DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2026
·
IF 9.9
Yanyun Ju,Qimeng Zhang,Tingqiang Lin,Rui Feng,Zehong Wang,Bowei Liu,Ling Zhou,Lijie Dong
Poly (amide acid) acts as an interfacial mediator via hydrogen bonding. • PZT content is increased by 2.8 times with an optimized PAA concentration of 8 wt%. • Sintered flexible GFF/PZT composite forms a continuous piezoelectric ceramic network. • The flexible sensor achieves high sensitivity and excellent durability. Flexible piezoelectric composites have attracted increasing interest for sensor applications. However, for flexible fiber-based piezoelectric composites, constructing a continuous ceramic network with high loading and robust interfacial bonding on the fiber fabric remains challenging. In this study, we fabricated flexible glass fiber fabric (GFF)/PZT piezoelectric composites. Poly (amide acid) (PAA) was introduced as a molecular mediator on the GFF, where PAA forms hydrogen bonds with the hydroxyl group and acetate groups of the PZT sol, enabling a 2.8-fold increase in PZT loading at an optimized PAA concentration of 8 wt%. The resulting GFF/PZT composite exhibits a continuous ceramic phase and retains good flexibility with a minimum bending radius of 15 mm. After encapsulation with interdigitated electrodes via epoxy resin (Ep), the GFF/PZT/Ep sensor achieves a minimum bending radius as low as 2.5 mm and exhibits enhanced electrical properties: a dielectric constant of 147, a low dielectric loss of 0.01 at 10 3 Hz, and an inverse piezoelectric coefficient of 119.5 p.m./V. As a bending sensor, it delivers a high sensitivity of 7.52 V per unit flexural strain and excellent durability over 1000 cycles. As a vibration sensor, it attains a sensitivity of 211.16 mV/g at 10 Hz and maintains stable output over 10,000 cycles. This work offers a promising strategy for developing flexible piezoelectric composites for energy conversion applications. Download: Download high-res image (1MB) Download: Download full-size image
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DOI
高影响因子
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