ECLIPSE/Collaborative Research: Unravelling the Coupled Physics of Piezoelectric and Plasma Behavior in Piezoelectric Stimulated Plasma Sources

ECLIPSE/合作研究：揭示压电受激等离子体源中压电和等离子体行为的耦合物理

• 批准号: 2206420
• 负责人: David Go
• 金额: $ 24.44万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-06-15 至 2025-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2206420&HistoricalAwards=false
• 关键词: ECLIPSE; Collaborative; Research; Unravelling; Coupled

This award will enable a foundational study of atmospheric pressure plasmas in piezoelectric plasma discharges. The application of atmospheric pressure non-thermal plasmas – which are highly reactive and can be used for applications ranging from water purification and clean energy technology to sterilization – can at times be limited by requiring exotic, expensive, or bulky electronics and circuits for their operation. Piezoelectric materials could relax the need for high-end power supplies by using mechanical motion to produce the plasma forming piezoelectric stimulated plasma sources. The key feature of a piezoelectric stimulated plasma source is that the piezoelectric material is capable of high voltage gain and possesses high dielectric permittivity, enabling direct formation of a plasma at the piezoelectric surface. Current understanding of the interaction between piezoelectric materials and plasmas is very limited and there are unanswered fundamental questions about the coupling between the dynamics of the solid phase piezoelectric and plasma processes. The research project will provide understanding of a new area of plasma science that can be translated to sensor, biomedical, chemical, fluid dynamics, and materials applications. As such, this collaborative project between the University of South Carolina and the University of Notre Dame is being supported under the ECosystem for Leading Innovation in Plasma Science and Engineering (ECLIPSE) program.Fundamental understanding of piezoelectric stimulated plasma sources will be advanced through combined and cohesive modeling and experimental efforts. A new multi-physics modeling framework, benchmarked against experiments, will be developed that resolves both the solid phase piezoelectric material and gas phase plasma in a fully integrated fashion that is currently not available. Understanding at a fundamental level will help advance the understanding of plasma-surface interactions that is important to a large variety of plasma devices. The outcomes of this effort are expected to be a major leap in predictive modeling and transformative knowledge on piezoelectric stimulated non-thermal plasma discharges, outreach to the global plasma community through focused virtual workshops, YouTube-based short video modules on piezoelectric direct plasma discharges, and student exchange and outreach activities to inspire under-represented students and the general public towards STEM.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项将有助于对压电等离子体放电中的大气压等离子体进行基础研究，大气压非热等离子体具有高反应性，可用于从水净化、清洁能源技术到消毒等各种应用。压电材料可以通过使用机械运动产生等离子体形成压电受激等离子体源来缓解对高端电源的需求。压电受激等离子体源的特点是压电材料能够获得高电压增益并具有高介电常数，从而能够在压电表面直接形成等离子体。目前对压电材料和等离子体之间相互作用的理解非常有限，并且还没有得到解答。有关固相压电和等离子体过程动力学之间耦合的问题将提供对等离子体科学新领域的理解，该领域可以转化为传感器、生物医学、化学、流体动力学和材料应用。因此，南卡罗来纳大学和圣母大学之间的这一合作项目得到了等离子体科学与工程领先创新生态系统 (ECLIPSE) 计划的支持。将通过组合和凝聚力推进对压电激励等离子体源的基本理解建模和实验工作将开发一个以实验为基准的新的多物理建模框架，以目前尚不可用的完全集成的方式解决固相压电材料和气相等离子体。从根本上理解将有助于增进对等离子体-表面相互作用的理解，这对于各种等离子体设备都很重要，预计这项工作的成果将成为压电激励非热的预测建模和变革性知识的重大飞跃。等离子体放电，通过重点虚拟研讨会、基于 YouTube 的关于压电直接等离子体放电的短视频模块以及学生交流和外展活动向全球等离子体社区进行推广，以激励代表性不足的学生和公众对 STEM 的兴趣。该奖项反映了 NSF 的法定奖项使命并拥有通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。