Novel liquid–phase flash sintering of lead zirconate titanate piezo-ceramics

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2024-08-21 DOI:10.1111/jace.20075

Kumar Sadanand Arya, Ram Prakash Singh, Tamoghna Chakrabarti

{"title":"Novel liquid–phase flash sintering of lead zirconate titanate piezo-ceramics","authors":"Kumar Sadanand Arya, Ram Prakash Singh, Tamoghna Chakrabarti","doi":"10.1111/jace.20075","DOIUrl":null,"url":null,"abstract":"Lead-based piezo-ceramics like lead zirconate titanate (PZT) are a mainstay for many piezoelectric applications. However, lead oxide (PbO) evaporation during sintering poses a significant environmental challenge. Flash sintering (FS) is a novel technique that can densify ceramics in seconds and at a much lower furnace temperature. The liquid-phase FS (LPFS) of PZT (Pb (Zr0.5Ti0.5) O3, with 3 wt.% Cu2O and PbO in the molar ratio of 1:4) is investigated in this work. Further, a comparison has been made among the lead loss, dielectric, and piezoelectric properties of flash-sintered and conventionally liquid-phase-sintered PZT. It has been observed that the evaporation of PbO has been brought down 3–5 times by FS. The dielectric constant of LPFS PZT is significantly higher, especially at higher frequencies with lower dielectric loss. An enhanced piezoelectric coefficient in flash-sintered PZT has also been observed. The LPFS of PZT shows that the lead loss can be brought down significantly with the added benefit of enhanced dielectric and piezoelectric properties. XRD and Rietveld analysis show an increase in tetragonality after FS in comparison with conventional sintering. XPS and ESR studies show a difference in defect concentration after FS in comparison with conventional sintering that is likely responsible for the enhanced dielectric and piezoelectric properties.","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"107 12","pages":"8007-8022"},"PeriodicalIF":3.5000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20075","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

Lead-based piezo-ceramics like lead zirconate titanate (PZT) are a mainstay for many piezoelectric applications. However, lead oxide (PbO) evaporation during sintering poses a significant environmental challenge. Flash sintering (FS) is a novel technique that can densify ceramics in seconds and at a much lower furnace temperature. The liquid-phase FS (LPFS) of PZT (Pb (Zr_0.5Ti_0.5) O₃, with 3 wt.% Cu₂O and PbO in the molar ratio of 1:4) is investigated in this work. Further, a comparison has been made among the lead loss, dielectric, and piezoelectric properties of flash-sintered and conventionally liquid-phase-sintered PZT. It has been observed that the evaporation of PbO has been brought down 3–5 times by FS. The dielectric constant of LPFS PZT is significantly higher, especially at higher frequencies with lower dielectric loss. An enhanced piezoelectric coefficient in flash-sintered PZT has also been observed. The LPFS of PZT shows that the lead loss can be brought down significantly with the added benefit of enhanced dielectric and piezoelectric properties. XRD and Rietveld analysis show an increase in tetragonality after FS in comparison with conventional sintering. XPS and ESR studies show a difference in defect concentration after FS in comparison with conventional sintering that is likely responsible for the enhanced dielectric and piezoelectric properties.

查看原文本刊更多论文

新型液相闪速烧结锆钛酸铅压电陶瓷

锆钛酸铅（PZT）等铅基压电陶瓷是许多压电应用的主要材料。然而，烧结过程中的氧化铅（PbO）蒸发给环境带来了巨大挑战。闪速烧结（FS）是一种新型技术，可在几秒钟内以更低的炉温使陶瓷致密化。本文研究了 PZT（Pb (Zr0.5Ti0.5) O3，其中 Cu2O 和 PbO 的摩尔比为 1:4，重量百分比为 3）的液相烧结（LPFS）。此外，还比较了闪速烧结 PZT 和传统液相烧结 PZT 的铅损失、介电和压电特性。结果表明，闪速烧结将氧化铅的蒸发量降低了 3-5 倍。LPFS PZT 的介电常数明显更高，尤其是在较高频率下，介电损耗更低。此外，还观察到闪光烧结 PZT 的压电系数有所提高。PZT 的 LPFS 表明，在提高介电和压电特性的同时，还能显著降低铅损耗。XRD 和 Rietveld 分析表明，与传统烧结相比，FS 后的四角形增加了。XPS 和 ESR 研究表明，与传统烧结相比，FS 后的缺陷浓度不同，这可能是介电和压电特性增强的原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.