Influence of Structural Phase Transitions on the Mechanical Behavior of Lead-Free Potassium Sodium Niobate Piezoceramics
结构相变对无铅铌酸钾钠压电陶瓷力学行为的影响
基本信息
- 批准号:392442956
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2018
- 资助国家:德国
- 起止时间:2017-12-31 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A growing critical environmental issue exists related to the increasing use of toxic lead-based piezoelectric ceramics for various sensor and actuator applications. There have been substantial scientific and industrial efforts towards the development of lead-free alternatives, which have led to the identification of various potential material systems. Polycrystalline (KxNa1- x)NbO3 (KNN) remains one of the most promising candidates, with a high Curie point, stable electromechanical response over a wide usable temperature range, high acoustic vibration velocities, and low density. Despite the numerous advancements in tailoring the electromechanical properties, there has been very little work on understanding the mechanical response, in particular the fracture behavior, which is crucial for reliable commercial implementation. During operation piezoelectric ceramics are often exposed to high operating temperatures and large compressive stress, used to reduce cracking. Therefore, the aim of this project is to use combined and complementary experimental techniques and expertise in Germany and China to characterize the temperature-dependent mechanical properties and in situ stress-dependent crystal structure of KNN with various advanced novel measurement techniques.
随着有毒铅基压电陶瓷在各种传感器和致动器中的应用越来越多,环境问题日益严重。在开发无铅替代品方面进行了大量的科学和工业努力,从而确定了各种可能的材料系统。多晶(KxNa1-x)NbO3(KNN)仍然是最有前途的候选材料之一,它具有高居里点、在宽可用温度范围内稳定的机电响应、高的声振动速度和低的密度。尽管在定制机电性能方面取得了许多进展,但在了解机械响应,特别是断裂行为方面的工作很少,这对可靠的商业应用至关重要。在使用过程中,压电陶瓷经常暴露在较高的工作温度和较大的压应力下,用来减少裂纹。因此,本项目的目的是利用德国和中国的综合和互补的实验技术和专业知识,通过各种先进的新测量技术来表征KNN的随温度变化的力学性能和随应力变化的晶体结构。
项目成果
期刊论文数量(6)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Deformation and bending strength of high performance lead‐free piezoceramics
高性能无铅压电陶瓷的变形和弯曲强度
- DOI:10.1111/jace.18311
- 发表时间:2022
- 期刊:
- 影响因子:3.9
- 作者:Lalitha KV;Isaia D;Gong W;Rödel J
- 通讯作者:Rödel J
High temperature piezoelectric response of polycrystalline Li-doped (K,Na)NbO3 ceramics under compressive stress
- DOI:10.1063/1.5134554
- 发表时间:2020-03
- 期刊:
- 影响因子:3.2
- 作者:Alexander Martin;N. Khansur;U. Eckstein;K. Riess;K. Kakimoto;K. Webber
- 通讯作者:Alexander Martin;N. Khansur;U. Eckstein;K. Riess;K. Kakimoto;K. Webber
Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties
(Li,Na,K)NbO3基压电陶瓷的碱挥发及大场电学性能
- DOI:10.2109/jcersj2.20201
- 发表时间:2021
- 期刊:
- 影响因子:1.1
- 作者:Nishiyama H;Martin A;Hatano K;Kishimoto S;Sasaki N;Webber KG;Kakimoto K
- 通讯作者:Kakimoto K
Stress-modulated optimization of polymorphic phase transition in Li-doped (K,Na)NbO3
- DOI:10.1063/5.0016072
- 发表时间:2020-07
- 期刊:
- 影响因子:4
- 作者:N. Khansur;Alexander Martin;K. Riess;H. Nishiyama;Keiichi Hatano;Ke Wang;Jingfeng Li;K. Kakimoto-K.-Kak
- 通讯作者:N. Khansur;Alexander Martin;K. Riess;H. Nishiyama;Keiichi Hatano;Ke Wang;Jingfeng Li;K. Kakimoto-K.-Kak
Electric-field-induced strain of (Li,Na,K)NbO3-based multilayered piezoceramics under electromechanical loading
- DOI:10.1063/5.0029615
- 发表时间:2020-12
- 期刊:
- 影响因子:3.2
- 作者:H. Nishiyama;Alexander Martin;Keiichi Hatano;Sumiaki Kishimoto;Nobuhiro Sasaki;N. Khansur;K. Webber;K. Kakimoto
- 通讯作者:H. Nishiyama;Alexander Martin;Keiichi Hatano;Sumiaki Kishimoto;Nobuhiro Sasaki;N. Khansur;K. Webber;K. Kakimoto
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Professor Dr.-Ing. Jürgen Rödel其他文献
Professor Dr.-Ing. Jürgen Rödel的其他文献
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{{ truncateString('Professor Dr.-Ing. Jürgen Rödel', 18)}}的其他基金
Toughening of bismuth-based lead-free piezoceramics
铋基无铅压电陶瓷的增韧
- 批准号:
229436520 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Research Grants
Lead-free piezoelectric single crystals with high strain: orientation dependance, polarization rotation and morphotropic phase boundaries
高应变无铅压电单晶:取向依赖性、极化旋转和同形相界
- 批准号:
194906439 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
Herstellung und Schaltverhalten neuer wismuthaltiger Hochtemperaturpiezokeramiken
新型含铋高温压电陶瓷的制备及开关行为
- 批准号:
14926878 - 财政年份:2005
- 资助金额:
-- - 项目类别:
Research Grants
Strategien zur Zukunftssicherung der keramischen Forschung
确保陶瓷研究未来的策略
- 批准号:
5456543 - 财政年份:2005
- 资助金额:
-- - 项目类别:
Research Grants
Anisotropieentwicklung beim Foliengießen, Trocknen und Sintern keramischer LTCC-Substrate (Low Tmeperatur Co-fired Ceramics)
陶瓷 LTCC 基板(低温共烧陶瓷)的薄膜流延、干燥和烧结过程中的各向异性发展
- 批准号:
5435066 - 财政年份:2004
- 资助金额:
-- - 项目类别:
Research Grants
Crack growth in ferroelectrics driven by cyclic electric loading
循环电负载驱动的铁电体裂纹扩展
- 批准号:
5397373 - 财政年份:2002
- 资助金额:
-- - 项目类别:
Research Grants
Crack opening displacement, crack closure stresses and R-curves in ceramics as function of crack geometry and stress field
陶瓷中裂纹张开位移、裂纹闭合应力和 R 曲线作为裂纹几何形状和应力场的函数
- 批准号:
5254161 - 财政年份:2000
- 资助金额:
-- - 项目类别:
Research Grants
Experiment and computer simulation on microcracking in oxide ceramics due to an anisotropy in thermal expansion
氧化物陶瓷热膨胀各向异性微裂纹的实验与计算机模拟
- 批准号:
5271866 - 财政年份:2000
- 资助金额:
-- - 项目类别:
Research Grants
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