Collaborative Research: Acoustic Holography Enabled Additive Manufacturing of High-resolution Multifunctional Composites

合作研究：声全息技术支持高分辨率多功能复合材料的增材制造

• 批准号: 2104526
• 负责人: Zhenhua Tian
• 金额: $ 26万
• 依托单位: Mississippi State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-07-01 至 2022-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2104526&HistoricalAwards=false
• 关键词: Collaborative; Research; Acoustic; Holography; Enabled

Recent swift advances in additive manufacturing have demonstrated its great potential in tailoring the local and global properties of produced structures by including micro- or nano-particles into polymer matrix composites. However, current approaches have been limited by the challenge in precision spatial controls of embedded particles, which usually have diverse material properties, sizes, and shapes, making particle manipulation in a viscous polymer fluid difficult. This collaborative research award will conduct fundamental research to transform an additive manufacturing technology that leverages digital light processing for photopolymerization printing and acoustic holography to accurately “tweeze” micro/nano-particles in a polymer resin. The research will greatly impact basic science fields in acoustic tweezers, materials processing, metamaterials, and biomaterials, etc. Moreover, the studied acoustic holography additive manufacturing technology will advance many engineering applications through enabling novel metamaterials containing, e.g., lattice-like patterns for ultrasonic signal processing devices, cellulose-based reinforced architectures for customized repair of aircraft composite structures, or patterned micro-vessels for personalized biomimetic bone tissue regeneration. Through education and outreach activities, this project will also broaden the participation of underrepresented minorities, improve STEM education, and increase public engagements with science and technologies. The multidisciplinary nature of this project will provide unique learning and training opportunities for graduate and undergraduate students. The overall objective of this research is to understand an acoustic holography enabled additive manufacturing mechanism to fabricate multifunctional composites that contain high-resolution, versatile patterns of diverse micro/nano-particles such as cellulose nanofibrils, carbon-based particles, and cells, etc. First, an acoustic holography-based particle patterning mechanism will be established to construct and reconfigure versatile particle patterns in viscous resins by studying a frequency multiplexing-based method for dynamically controlling multifrequency acoustic fields. Acoustic wave interactions with particles in viscous resins will be uncovered through particle image velocimetry and acoustic field scanning, and a theoretical model for rapid prediction of the particle patterning process will be developed and validated. Next, the knowhow of the acoustic holography-based particle patterning will be fused with the digital light processing-based photopolymerization to create a versatile, high-resolution apparatus for scalable additive manufacturing. Then, the apparatus will be utilized to develop and study novel multifunctional composites such as topological metamaterial composites containing periodic lattice-like patterns of micro-particles. Both theoretical and experimental methodologies will be utilized to further discover the effects of different periodic particle patterns on different properties of additively manufactured composites, including anisotropic elasticity, acoustic band gaps, Dirac cones, and topological states, etc.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.

添加剂制造业的最新进展证明了其通过在聚合物基质组合物中包括微或纳米粒子将生产结构的局部和全球性质的巨大潜力。但是，当前方法受到嵌入式颗粒的精确空间控制的挑战的限制，嵌入式颗粒通常具有潜水的材料特性，尺寸和形状，从而使粒子在粘性聚合物流体中的操纵变得困难。协作研究奖将进行基础研究，以改变一项额外的制造技术，该技术利用数字光处理来进行光聚合印刷和声学全息图，以准确地“搅打”聚合物树脂中的微/纳米粒子。这项研究将极大地影响声学镊子，材料加工，超材料和生物材料等的基础科学领域。用于个性化仿生骨组织再生的结构或图案化的微容器。通过教育和宣传活动，该项目还将扩大代表性不足的少数群体的参与，改善STEM教育，并增加与科学和技术的公众参与。该项目的多学科性质将为研究生和本科生提供独特的学习和培训机会。这项研究的总体目的是了解一种声学全​​息制造机制，以制造含有高分辨率的，多功能的构图，这些组合物具有高分辨率，多功能的微/纳米粒子，例如纤维素纳米纤维纤维纤维纤维，基于碳的颗粒和细胞等。通过研究一种基于频率多路复用的方法，用于动态控制多频听声场。将通过粒子图像速度法和声场扫描来发现与粘性树脂中颗粒的声波相互作用，并将开发和验证用于快速预测粒子图案过程的理论模型。接下来，基于声学全息图的粒子图案的专业知识将与基于数字光处理的光聚合化融合，以创建一种用于可扩展添加剂制造的多功能高分辨率设备。然后，将利用该设备来开发和研究新型的多功能组合物，例如包含微粒的定期晶格样式的拓扑超材料组成。理论和实验方法都将被用来进一步发现不同周期性粒子模式对添加制造的组合物不同特性的影响，包括各向异性弹性，声学领域，声学领域，狄拉克锥和拓扑状态等。该奖项奖均反映了NSF的法定任务，并通过评估了Intelliia the Intelligia crifial and Inthernitia and Intervial and Intformial and Intformial and Intervisial and Interviatial and Intellit and Interviatial。

项目成果

Harmonic acoustics for dynamic and selective particle manipulation.

• DOI: 10.1038/s41563-022-01210-8
• 发表时间: 2022-05
• 期刊: Nature materials
• 影响因子: 41.2