Fatigue in Lead-free Piezoceramics

无铅压电陶瓷的疲劳

• 批准号: DP150104649
• 负责人: Prof Mark Hoffman
• 金额: $ 25.52万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-02-01 至 2020-10-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150104649
• 关键词: Fatigue; Lead; free; Piezoceramics

This project aims are to achieve a fundamental understanding of the fatigue behaviour of lead-free piezoelectric ceramics which achieve high strain through phase transformations and then ascertain the effects of this behaviour on material degradation rates. The expected outcomes will facilitate replacement of toxic lead in commodity electronics. The focus will be on new lead-free bismuth-alkali-based piezoelectric ceramic systems which demonstrate exciting potential as alternate materials to lead zirconate titanate (PZT) materials. Successful optimisation of the materials' design and knowledge of their degradation rates are expected to facilitate their commercialisation through a profound reduction in the environmental challenges associated with manufacture and disposal of devices.

该项目旨在对无铅压电陶瓷的疲劳行为有一个基本的了解，无铅压电陶瓷通过相变实现高应变，然后确定这种行为对材料降解速率的影响。预期成果将有助于替代商品电子产品中的有毒铅。重点将放在新的无铅铋碱基压电陶瓷系统，表现出令人兴奋的潜力，作为替代材料的锆钛酸铅（PZT）材料。材料设计的成功优化及其降解速率的知识有望通过大幅减少与器械制造和处置相关的环境挑战来促进其商业化。