Design and development of outstanding strain properties in NBT-based lead-free piezoelectric multilayer actuators by grain-orientation engineering

Li, Kai; Liu, Fafu; Zhang, Wu; Dou, Zhanming; Ma, Weigang; Samart, Chanatip; Takesue, Naohisa; Tan, Hua; Fan, Pengyuan; Ye, Zuo‐Guang; Zhang, Haibo

doi:10.1016/j.actamat.2023.118696

Cited by 22 publications

(8 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Almost all matrix grains have been replaced by highly [001] c -oriented grains at F 001 of ∼98% (Figure f). As shown in Figure c, all detected elements are uniformly distributed inside the textured grain, which is different from the remarkable core–shell-structured grain (i.e., template remains inside the textured grain) observed previously. ,,,, …”

Section: Resultscontrasting

confidence: 68%

“…Controlling orientation of ceramic grains along a specific crystallographic direction enables explorations of both property anisotropy and domain engineering, offering great possibility to enhance piezoelectricity without compromising T c . ,− Several studies were carried out on texturing the BZT-50BCT composition along [001] c via templated grain growth (TGG)-type processes, − and the effects of raw materials, template amount, and sintering parameters on the texture degree and electrical properties were studied. Generally, for those textured ceramics, the T c values were maintained or increased, but piezoelectric coefficients (e.g., d 33 of ∼340–596 pC N –1 and electrostrain S max / E max of ∼620–1063 pm V –1 ) − became even lower than those of the non-textured counterpart .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lead-Free Textured Ceramics with Ultrahigh Piezoelectric Properties by Synergistic Design

Kou,

Yang,

Lei

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Lead-free ceramics with superior piezoelectric performance are highly desirable in various electromechanical applications. Unfortunately, it is still challenging to achieve significantly enhanced piezoelectricity without sacrificing the Curie temperature (T c ) in current BaTiO 3 -based ceramics. To address this issue, a synergistic design strategy of integrating crystallographic texture, multiphase coexistence, and doping engineering is proposed here. Highly [001] c -textured (Ba 0.95 Ca 0.05 )(Ti 0.92 Zr 0.06 Sn 0.02 )O 3 ceramics are synthesized through Li-related liquid-phase-assisted templated grain growth, with improved grain orientation quality (f of ∼96% and r of ∼0.16) achieved at substantially reduced texture temperatures. Encouragingly, ultrahigh comprehensive piezoelectric properties, i.e., piezoelectric coefficient d 33 of ∼820 pC N −1 , electrostrain S max /E max of ∼2040 pm V −1 , and figure of merit d 33 × g 33 of ∼23.5 × 10 −12 m 2 N −1 , are simultaneously obtained without sacrificing T c , which are also about 2.3, 2.4, and 4.3 times as high as those of non-textured counterpart, respectively. On the basis of the experiments and theoretical modeling, the outstanding piezoelectric performance is attributed to more effective exploration of property anisotropy and easier polarization rotation/ extension, owing to improved grain orientation quality, dissolution of templates into oriented grains, coexisting R + O + T phases, and domain miniaturization. This work provides important guidelines for developing novel ceramics with outstanding piezoelectric properties and can largely expand application fields of textured BaTiO 3 -based ceramics into high-performance and multilayer electronic devices.

show abstract

Section: Resultscontrasting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Lead-Free Textured Ceramics with Ultrahigh Piezoelectric Properties by Synergistic Design

Kou,

Yang,

Lei

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…For comparison, the matrix particles without the sintering aids were also mixed and ball-milled for 6 h in the presence of ethanol. Then, both the dried particles with and without the sintering aids were manufactured into a homogeneous, agglomerate-free slurry, in which the detailed fabrication was provided in the previous reference . These two types of slurries were added with the 3 wt % NN templates and ball-milled for 1 h and then were tape-cast on the plastic tapes with a doctor blade height of 150 μm and a casting rate of 60 cm/min.…”

Section: Methodsmentioning

confidence: 99%

“…Then, both the dried particles with and without the sintering aids were manufactured into a homogeneous, agglomerate-free slurry, in which the detailed fabrication was provided in the previous reference. 32 These two types of slurries were added with the 3 wt % NN templates and ball-milled for 1 h and then were tape-cast on the plastic tapes with a doctor blade height of 150 μm and a casting rate of 60 cm/min. Subsequently, the dried green casting films were stacked and laminated under a pressure of 75 MPa at 70 °C.…”

Section: Textured and Nontextured Ceramics Preparationmentioning

confidence: 99%

“…Afterward, the composition of the initial matrix is designed to display a softened ferroelectric activity, i.e., a nonergodic relaxor (NR) state, which can drive the textured NBT-based ceramic to exhibit a reversible phase transition at room temperature, and Figure shows the schematic diagram of this synergistic strategy. To realize this concept, in this work, we applied the TGG approach to fabricate a ⟨001⟩-textured (Na 0.5 Bi 0.5 ) 0.935 Ba 0.065 Ti 0.978 (Fe 0.5 Nb 0.5 ) 0.022 O 3 ceramic (abbreviated as NBT-BT-2.2FN) with a small amount of Li 2 CO 3 and CuO as sintering aids to assist template-induced grain growth, where the ⟨001⟩-oriented NN microplates were used as templates. , The NBT-BT-2.2FN solid solution was found to be a nonergodic relaxor state and therefore chosen as the matrix. − The results demonstrated that the liquid phase caused by the additions of Li 2 CO 3 and CuO could significantly facilitate the growth of NBT-BT-2.2FN single crystals on plate-like NN particles, yielding a very high F 00 l of 95% at a low sintering temperature (1000 °C) in the textured ceramics. Intriguingly, due to the promotion of the liquid phase, the NN templates gradually dissolved into the oriented grains during the sintering process and the textured ceramic displayed a similar phase structure to the NN-doped nontextured counterpart.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Superior Large-Signal Piezoelectric Coefficient in Textured NBT-Based Piezoceramics by Template-Induced Structure and Composition Modulation

Ben

Zhu

et al. 2023

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

The field-induced-phase transition in (Na 1/2 Bi 1/2 )TiO 3 -based lead-free piezoceramics can be facilitated in the ⟨001⟩-crystallographic orientation, and the templated grain growth is an effective method to align polycrystalline ceramics along with specific directions. However, due to the low texturing degree and undesirable composite effect of the added templates, the textured ceramics using the templated grain growth (TGG) method usually require a higher driving field to trigger the phase transition instead. Here, ⟨001⟩-textured (Na 0.5 Bi 0.5 ) 0.935 Ba 0.065 Ti 0.978 (Fe 0.5 Nb 0.5 ) 0.022 O 3 ceramics are prepared through a liquid-phase-assisted TGG process at a low sintering temperature (1000 °C), in which the NaNbO 3 (NN) templates induce a strong crystallographic anisotropic structure (a high Lotgering factor of 95%) while dissolving into oriented grains. The dissolution of templates acts as a composition doping and contributes to reducing the driving electric field as proven by the phase-field simulation analysis. Furthermore, electrical and structural characterizations reveal that an increased ionic disorder occurs in the textured ceramic, causing highly dynamic polar nanoregions and a larger reversible phase transition. Thanks to the appropriate structure/composition control, the textured ceramic achieves a large d 33 * value of 907 pm/V at 40 kV/cm. The high-performance lead-free ceramic under low driving electric field benefits the development of multilayer piezoelectric actuators. KEYWORDS: (Na 1/2 Bi 1/2 )TiO 3 ceramics, templated grain growth, phase transition, large-signal piezoelectric coefficient, low driving electric field

show abstract

Elastic Polarization Configuration Coupled with Activity Rattling Space Boosts Energy Harvesting Performance of Lead‐Free Piezoceramic

Xi,

Hou,

Zheng

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Piezoelectric energy harvesting technology is drawing substantial attention as an eco‐friendly method to promote energy transformation, which is at the forefront of current scientific research. However, the difficulties involved in obtaining a stable output voltage (Vout) and a controllable output current density (Iout) represent bottlenecks in the development of piezoelectric energy harvesters (PEHs) for practical applications. Here, a novel strategy that couples elastic polarization configuration with activity rattling space in lead‐free potassium sodium niobate‐based piezoceramics is proposed to break through this barrier. The cantilever beam‐type PEHs assembled using the rationally designed piezoceramic system show a stable Vout (≈22 V) and a controllable Iout over the range from 6.09 to 20.16 µA cm−2, which is sufficient to drive multiple types of wireless sensors that have the same rated voltage but different rated current requirements. These fantastic power generation performances are associated with a stable piezoelectric voltage coefficient (g33), an increasing piezoelectric charge coefficient (d33), and a weakened electrostrictive coefficient (Q33) that stem from polarization configuration optimization in combination with introduction of the activity rattling space design. This work provides a good approach to modulation of the overall performance of piezoelectric materials to meet the demands of advanced PEH applications.

show abstract

Design and development of outstanding strain properties in NBT-based lead-free piezoelectric multilayer actuators by grain-orientation engineering

Cited by 22 publications

References 65 publications

Lead-Free Textured Ceramics with Ultrahigh Piezoelectric Properties by Synergistic Design

Lead-Free Textured Ceramics with Ultrahigh Piezoelectric Properties by Synergistic Design

Superior Large-Signal Piezoelectric Coefficient in Textured NBT-Based Piezoceramics by Template-Induced Structure and Composition Modulation

Elastic Polarization Configuration Coupled with Activity Rattling Space Boosts Energy Harvesting Performance of Lead‐Free Piezoceramic

Contact Info

Product

Resources

About