Review of Sintering Aids in Lead-Free (K, Na)NbO₃-Based Ceramics

Yu, Yungang; Zheng, Ting; Zhang, Nan; Wu, Jiagang

doi:10.1109/tuffc.2022.3152412

Cited by 4 publications

(3 citation statements)

References 81 publications

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“…To promote sintering, 0.5 wt % Fe 2 O 3 (99.0%) was added as a sintering aid. 34 For tape casting, the slurry was mixed with 0.5 vol % NN templates, plasticizer (di-n-octyl phthalate), binder (polyvinyl butyral), and solvents (ethanol/xylene). The slurry was cast at a rate of 1 mm s −1 using a stainless-steel knife with a thickness of 0.25 mm.…”

Section: Methodsmentioning

confidence: 99%

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Enhanced Electromechanical Performance in Lead-free (Na,K)NbO₃-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Liu,

Shen,

Bian

et al. 2023

ACS Appl. Mater. Interfaces

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Next-generation electromechanical conversion devices have a significant demand for high-performance lead-free piezoelectric materials to meet environmentally friendly requirements. However, the low electromechanical properties of lead-free piezoceramics limit their application in high-end transducer applications. In this work, a 0.96K 0.48 Na 0.52 Nb 0.96 Sb 0.04 O 3 -0.04(Bi 0.5−x Sm x )Na 0.5 ZrO 3 (abbreviated as T-NKN-xSm) ceramic was designed through phase regulation and texture engineering, which is expected to solve this difficulty. Through our research, we successfully demonstrated the enhanced electromechanical performance of lead-free textured ceramics with a highly oriented [001] c orientation. Notably, the T-NKN-xSm textured ceramics doped with 0.05 mol % Sm exhibited the optimal electromechanical performance: piezoelectric coefficient d 33 ≈ 710 pC N -1 , longitudinal electromechanical coupling k 33 ≈ 0.88, planar electromechanical coupling k p ≈ 0.80, and Curie temperature T c ≈ 244 °C. Finally, we conducted a detailed investigation into the phase and domain structures of the T-NKN-Sm ceramics, providing valuable insights for achieving high electromechanical properties in NKN-based ceramics. This research serves as a crucial reference for the development of advanced electromechanical devices by facilitating the utilization of lead-free piezoelectric materials with superior performance and environmental benefits.

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Section: Methodsmentioning

confidence: 99%

“…After calcination at 850 °C for 6 h, the powder underwent a 12 h ball milling process. To promote sintering, 0.5 wt % Fe 2 O 3 (99.0%) was added as a sintering aid . For tape casting, the slurry was mixed with 0.5 vol % NN templates, plasticizer (di- n -octyl phthalate), binder (polyvinyl butyral), and solvents (ethanol/xylene).…”

Section: Methodsmentioning

confidence: 99%

Enhanced Electromechanical Performance in Lead-free (Na,K)NbO₃-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Liu,

Shen,

Bian

et al. 2023

ACS Appl. Mater. Interfaces

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“…Proper types and amounts of sintering aids such as the oxides of Ta, Bi, Li, Cu, and Sb can be added and mixed with the ceramic particles. [ 149 ] The sintering aids decrease the sintering temperature by infiltrating into the matrix lattice and then promoting the formation of solid solutions. An appropriate selection of sintering aids can improve the densification and piezoelectric properties to some extent.…”

Section: Manufacturing Stage—low‐temperature Fabrication Of Piezocera...mentioning

confidence: 99%

Toward Ecofriendly Piezoelectric Ceramics—Reduction of Energy and Environmental Footprint from Conceptualization to Deployment

Anandakrishnan,

Yadav,

Tabeshfar

et al. 2023

Global Challenges

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Piezoelectric materials are widely used in electromechanical coupling components including actuators, kinetic sensors, and transducers, as well as in kinetic energy harvesters that convert mechanical energy into electricity and thus can power wireless sensing networks and the Internet of Things (IoT). Because the number of deployed energy harvesting powered systems is projected to explode, the supply of piezoelectric energy harvesters is also expected to be boosted. However, despite being able to produce green electricity from the ambient environment, high‐performance piezoelectrics (i.e., piezoelectric ceramics) are energy intensive in research and manufacturing. For instance, the design of new piezoceramics relies on experimental trials, which need high process temperatures and thus cause high consumption and waste of energy. Also, the dominant element in high‐performance piezoceramics is hazardous Pb, but substituting Pb with other nonhazardous elements may lead to a compromise of performance, extending the energy payback time and imposing a question of trade‐offs between energy and environmental benefits. Meanwhile, piezoceramics are not well recycled, raising even more issues in terms of energy saving and environmental protection. This paper discusses these issues and then proposes solutions and provides perspectives to the future development of different aspects of piezoceramic research and industry.

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Structural and electrical properties of ZnO doped NKBN piezoelectric ceramic prepared by solid-state reaction technique for electronic application

Chhibber,

Kumari,

Bala

et al. 2024

AIP Conference Proceedings

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Review of Sintering Aids in Lead-Free (K, Na)NbO₃-Based Ceramics

Cited by 4 publications

References 81 publications

Enhanced Electromechanical Performance in Lead-free (Na,K)NbO₃-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Enhanced Electromechanical Performance in Lead-free (Na,K)NbO₃-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Toward Ecofriendly Piezoelectric Ceramics—Reduction of Energy and Environmental Footprint from Conceptualization to Deployment

Structural and electrical properties of ZnO doped NKBN piezoelectric ceramic prepared by solid-state reaction technique for electronic application

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Review of Sintering Aids in Lead-Free (K, Na)NbO₃-Based Ceramics

Cited by 4 publications

References 81 publications

Enhanced Electromechanical Performance in Lead-free (Na,K)NbO3-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Enhanced Electromechanical Performance in Lead-free (Na,K)NbO3-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Toward Ecofriendly Piezoelectric Ceramics—Reduction of Energy and Environmental Footprint from Conceptualization to Deployment

Structural and electrical properties of ZnO doped NKBN piezoelectric ceramic prepared by solid-state reaction technique for electronic application

Contact Info

Product

Resources

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Enhanced Electromechanical Performance in Lead-free (Na,K)NbO₃-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification

Enhanced Electromechanical Performance in Lead-free (Na,K)NbO₃-Based Piezoceramics via the Synergistic Design of Texture Engineering and Sm-Modification