CAREER: Additive Manufacturing with Acoustically Assembled Multi-Scale Composite Materials

职业：使用声学组装的多尺度复合材料进行增材制造

• 批准号: 2240170
• 负责人: Tyler Ray
• 金额: $ 51.88万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2028-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2240170&HistoricalAwards=false
• 关键词: CAREER; Additive; Manufacturing; Acoustically; Assembled

This Faculty Early Career Development (CAREER) grant focuses on understanding and advancing a new processing pathway for the additive manufacturing of the next-generation functional materials. Additive manufacturing technologies have rapidly matured in pursuit of geometric complexity, scalability, and reproducibility; however, similar advances in customized, application-specific engineered materials are limited. Innovations to control printed architectures across both microstructural and component levels enable the realization of advanced multi-functional, multi-material composites. Such capabilities are critical to addressing the demanding material requirements of transformative technologies including high-capacity energy storage, clean energy, and quantum computing. This research project seeks to develop, understand, and validate the application of external fields, such as acoustic fields, within additive manufacturing processes and discover the fundamental process mechanisms that enable precise spatial control over micro- and nanoparticle constituents. The cross-disciplinary nature of this research expands opportunities for interdisciplinary training and positions this project for enhancing interest K-12 students in science, technology, engineering, arts, and mathematics (STEAM). This project establishes education and outreach activities directly integrated with research outcomes including: (i) an annual Additive Manufacturing Make-a-thon focused on innovative distributed manufacturing technologies, (ii) a culture-based engineering outreach program to promote careers in STEAM to Native Hawaiian students, (iii) mentored research opportunities to support STEAM education and workforce development, and (iv) curriculum innovation at the undergraduate and graduate levels. The specific goal of this research is to discover the scientific foundations for the additive manufacturing of acoustically assembled multi-scale composite materials with engineered properties resulting from deterministically ordered microstructures. A central challenge to creating nanoparticle-based composite materials is the control of the spatial distribution of nanoparticles across multiple length-scales. External fields, such as acoustic fields, have been shown to enable spatial control over microscale particles during a direct deposition additive manufacturing process. The research project proposes an acoustophoretic additive manufacturing method that combines three mechanisms to enable the continuous hierarchical assembly of bulk materials: (i) surface functionalization to create ordered/disordered micron-scale nanoparticle aggregates in solution, (ii) acoustic fields to assemble microscale aggregates into mesoscale structures, and (iii) direct deposition of these mesoscale structures into bulk components. The project combines theoretical and experimental studies to systematically investigate and reveal the fundamental principles governing the mechanics of flow-based, field-assisted additive manufacturing across multiple length scales. A key focus is to obtain a better understanding of the processing-structure-property relationships governing the use of acoustic fields to fabricate multiscale composite materials with specific, functionally-graded properties.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.

这项教师早期职业发展（职业）赠款专注于理解和推进下一代功能材料的增材制造的新处理途径。增材制造技术已迅速成熟，以追求几何复杂性，可扩展性和可重复性。但是，定制的，特定应用的工程材料的类似进展受到限制。控制微观结构和组件级别的印刷体系结构的创新能够实现先进的多功能多功能复合材料。这样的功能对于满足变革性技术的苛刻材料要求至关重要，包括大容量储能，清洁能量和量子计算。该研究项目旨在开发，理解和验证外部田地（例如声场）在增材制造过程中的应用，并发现基本过程机制，这些过程机制可以精确地对微颗粒成分进行精确的空间控制。这项研究的跨学科性质扩大了跨学科培训的机会，并定位了该项目，以增强K-12学生对科学，技术，工程，艺术和数学（Steam）的兴趣。 This project establishes education and outreach activities directly integrated with research outcomes including: (i) an annual Additive Manufacturing Make-a-thon focused on innovative distributed manufacturing technologies, (ii) a culture-based engineering outreach program to promote careers in STEAM to Native Hawaiian students, (iii) mentored research opportunities to support STEAM education and workforce development, and (iv) curriculum innovation at the undergraduate and graduate levels.这项研究的具体目标是发现科学基础，用于由确定性有序的微观结构产生的具有工程性能的声学组装的多尺度复合材料。创建基于纳米颗粒的复合材料的核心挑战是控制多个长度尺度的纳米颗粒的空间分布。已显示外部磁场，例如声场，可以在直接沉积添加剂制造过程中对微观颗粒进行空间控制。 The research project proposes an acoustophoretic additive manufacturing method that combines three mechanisms to enable the continuous hierarchical assembly of bulk materials: (i) surface functionalization to create ordered/disordered micron-scale nanoparticle aggregates in solution, (ii) acoustic fields to assemble microscale aggregates into mesoscale structures, and (iii) direct deposition of these mesoscale structures into bulk 成分。该项目结合了理论和实验研究，以系统地调查并揭示了跨多个长度尺度上基于流动的，田间辅助增材制造机制的基本原理。一个重点是更好地了解有关使用声学领域来制造具有特定功能性授予属性的多尺度复合材料的处理结构 - 专业关系。该奖项反映了NSF的法定任务，并被认为是通过使用该基金会的知识分子和更广泛影响的评估来评估的支持，并被认为是值得的。