Collaborative Research: Tuning Properties of Bi-Continuous Piezoelectric Composites via Additive Manufacturing

合作研究：通过增材制造调整双连续压电复合材料的性能

• 批准号: 2020527
• 负责人: Lei Chen
• 金额: $ 20.47万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-10-02 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2020527&HistoricalAwards=false
• 关键词: Collaborative; Research; Tuning; Properties; Bi

This grant will support research that will contribute new knowledge relates to the design and manufacture of next-generation flexible electronic devices. The work will advance fundamental understanding of process-structure-property relationships of a bi-continuous piezoelectric composite, an emerging flexible material with potentially high efficiency in converting mechanical energy into electrical signals. A bi-continuous piezoelectric composite is composed of a ceramic phase and a polymer phase, continuously interconnected in three dimensions (3D). Until now, bi-continuous piezoelectric composites can only be achieved in the form of an open-porosity ceramic structure impregnated by polymers, whose properties cannot be controlled accurately and reliably. By utilizing additive manufacturing methods, this research will provide new knowledge on how properties of a bi-continuous piezoelectric composite can be accurately tuned through careful control of its micro- and meso-structure via additive manufacturing. This new knowledge will enable the development of next-generation piezoelectric devices that are low cost and lightweight, with a wide range operating temperatures, high mechanical flexibility and advanced electromechanical performance. This award will also enhance the infrastructure for research and education in the states of Iowa and Mississippi through activities designed to attract students from underrepresented groups and K-12 students to STEM disciplines.The objective of this research program is to uncover new fundamental knowledge for the design and manufacture of bi-continuous piezoelectric composites with controlled properties via additive manufacturing. The first research objective is to understand the fundamental mechanisms of porous microstructure formation in bi-continuous piezoelectric composites during additive manufacturing. To achieve this research objective, a phase-field-modeling method will be established to generate bi-continuous piezoelectric composite designs with 3D interconnected phase interfaces of desired connectivity. The second research objective is to quantify the effect of phase morphologies such as phase interfacial geometry on the piezoelectric properties of an additively manufactured bi-continuous piezoelectric composite with identified porous microstructures incorporated in the ceramic phase. To achieve this research objective, a two-scale computational model will be constructed to predict the piezoelectric properties of additively manufactured bi-continuous piezoelectric composites with predefined 3D phase interfaces. The computational model will be validated through characterizing piezoelectric properties of selected bi-continuous piezoelectric composite structures.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.

该赠款将支持将有助于新知识的研究，与下一代灵活电子设备的设计和制造有关。这项工作将进一步了解双连电的压电复合材料的过程结构 - 特质关系，这是一种新兴的柔性材料，在将机械能转化为电信号方面具有高效率。双连续的压电复合材料由陶瓷相和聚合物相组成，在三个维度（3D）中连续互连。到目前为止，只能以被聚合物浸渍的开放式陶瓷结构的形式来实现双连续的压电复合材料，该聚合物无法准确，可靠地控制其性能。通过利用增材制造方法，这项研究将提供有关如何通过仔细控制其微型和中间结构通过添加剂制造来准确调整双连接压电复合材料的属性的新知识。这些新知识将使下一代压电设备的开发低成本和轻量级，范围很广，机械灵活性高和先进的机电性能。该奖项还将通过旨在吸引代表不足的小组和K-12学生的学生来阻止学科的活动来增强爱荷华州和密西西比州研究和教育的基础设施。该研究计划的目的是揭示与双连续性综合材料的设计和制造具有可通过受控制造的双连续性化合物的设计和制造的新基本知识。第一个研究目标是了解在增材制造过程中双连续的压电复合材料中多孔微观结构形成的基本机制。为了实现这一研究目标，将建立一种相位模型的方法，以生成双连续的压电复合设计，并具有3D互连的相互连接连接性的相互接口。第二个研究目标是量化相形态的影响，例如相界面几何形状对添加性生产的双连续压电复合材料的压电特性以及与陶瓷相中纳入的多孔微结构的压电性能的影响。为了实现这一研究目标，将构建一个两尺度的计算模型，以预测具有预定义的3D相接口的添加性生产的双连接压电材料的压电性能。计算模型将通过表征选定的双连接压电复合结构的压电性能来验证。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛影响的审查标准通过评估来获得支持的。

项目成果

Selectively Doped Piezoelectric Ceramics with Tunable Piezoelectricity via Suspension-Enclosing Projection Stereolithography

• DOI: 10.1016/j.addma.2021.102407
• 发表时间: 2021-10
• 期刊: Additive Manufacturing
• 影响因子: 11
• 作者: Li He;Xiao Wang;F. Fei;Lei Chen;Xuan Song

Additive Manufacturing of Bi-Continuous Piezocomposites With Triply Periodic Phase Interfaces for Combined Flexibility and Piezoelectricity

具有三周期相界面的双连续压电复合材料的增材制造，实现灵活性和压电性的结合

• DOI: 10.1115/1.4044708
• 发表时间: 2019
• 期刊: Journal of Manufacturing Science and Engineering
• 作者: Song, Xuan;He, Li;Yang, Wenhua;Wang, Zhuo;Chen, Zeyu;Guo, Jing;Wang, Hong;Chen, Lei
• 通讯作者: Chen, Lei

Data-driven modeling of process, structure and property in additive manufacturing: A review and future directions

• DOI: 10.1016/j.jmapro.2022.02.053
• 发表时间: 2022-05
• 期刊: Journal of Manufacturing Processes
• 影响因子: 6.2
• 作者: Zhuo Wang;Wenhua Yang;Qingyang Liu;Ying-ying Zhao;Pengwei Liu;Dazhong Wu;M. Banu;Lei Chen