CAREER: Rational Design and Manufacturing of Nanostructured Surfaces and Interfaces in Lightweight Materials

职业：轻质材料纳米结构表面和界面的合理设计和制造

• 批准号: 1751590
• 负责人: Neil Dasgupta
• 金额: $ 50万
• 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: 2018
• 资助国家: 美国
• 起止时间: 2018-06-01 至 2024-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1751590&HistoricalAwards=false
• 关键词: CAREER; Rational; Design; Manufacturing; Nanostructured

This Faculty Early Career Development Program (CAREER) award supports fundamental research on scalable manufacturing of lightweight structural materials including polymer-matrix composites and lightweight magnesium alloys. The grant looks to develop new surface modification techniques, relying on atomic layer deposition (ALD) which can deposit sub-monolayer thick layers which serve as seeds to subsequently grow new structures three-dimensional structures at the nanoscale. These designed nanostructures are remarkably versatile. They can serve to improve the strength of polymer composites allowing for light-weight materials as well as impede corrosion on metal surfaces. This addresses critical needs, for example, in the transportation sector to improve fuel efficiency and vehicle performance, while maintaining safety. Beyond the direct impact on lightweighting, the scientific knowledge generated will provide an alternative design paradigm to the bottom-up design and manufacturing at the nanoscale. The educational goal is to promote public awareness of the importance of nanomaterials for the future of domestic manufacturing. The educational plan integrates concepts of design and manufacturing, nanotechnology, and surface science across multiple levels, including a new 6th grade materials curriculum, integrating materials education into undergraduate student team mentorship, and promoting a more diverse STEM workforce through research demonstrations to encourage underrepresented students to apply to graduate school and participate in research.Current manufacturing processes for controlling surface and interfacial structure in bulk structural materials suffer from poor control of geometric parameters such as feature size, shape, geometric orientation, which is particularly challenging within hierarchical assemblies of nanomaterials on non-planar surfaces. This lack of deterministic control of structure limits our ability to fundamentally understand how the nanostructuring produces specific material properties and a route to rationally design optimized structures to achieve application-specific properties. This project's effort addresses this limitation by quantitatively identifying the process-structure relationships needed to achieve deterministic control of interfacial geometry and composition at the nanoscale. The approach uses the concept of spatial ALD to generate sub-monolayer seeding areas for the growth of nanostructures through solution-based processes. The process can be repeated to develop three dimensional nanostructures on surfaces to precisely tune the interfacial geometry, composition, and microstructure of lightweight structural materials, and quantify the impact on their mechanical properties and corrosion resistance. An improved understanding of these process-structure relationships will provide the fundamental knowledge needed to ?encode? the manufacturing instructions for the controlled hierarchical assembly of nanoscale building blocks into surface architectures. This approach will be used to address two critical challenges in lightweight structural materials: 1) rational design of nanostructured interphases in polymer matrix composites to tune their mechanical properties, and 2) improving corrosion-resistance of magnesium alloys.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.

该学院早期职业发展计划（CAREER）奖支持轻质结构材料（包括聚合物基复合材料和轻质镁合金）可扩展制造的基础研究。该拨款旨在开发新的表面改性技术，依靠原子层沉积（ALD），该技术可以沉积亚单层厚层，作为种子，随后在纳米尺度上生长新的三维结构。这些设计的纳米结构具有非常多的用途。它们可以提高聚合物复合材料的强度，从而实现轻质材料，并阻止金属表面的腐蚀。这满足了交通运输领域的关键需求，以提高燃油效率和车辆性能，同时保持安全。除了对轻量化的直接影响之外，所产生的科学知识还将为纳米级自下而上的设计和制造提供替代设计范例。教育目标是提高公众对纳米材料对国内制造业未来重要性的认识。 该教育计划在多个层面上整合了设计和制造、纳米技术和表面科学的概念，包括新的六年级材料课程，将材料教育纳入本科生团队指导，并通过研究示范促进更加多元化的 STEM 劳动力队伍，以鼓励代表性不足的学生申请研究生院并参与研究。当前控制块状结构材料表面和界面结构的制造工艺对特征尺寸、形状、几何方向等几何参数的控制较差，这在纳米材料的分层组装中尤其具有挑战性。非平面表面。结构缺乏确定性控制限制了我们从根本上理解纳米结构如何产生特定材料特性的能力以及合理设计优化结构以实现特定应用特性的途径。该项目的工作是通过定量识别实现纳米尺度界面几何形状和成分的确定性控制所需的过程-结构关系来解决这一限制。该方法利用空间 ALD 的概念，通过基于溶液的工艺生成亚单层播种区域，用于纳米结构的生长。可以重复该过程，在表面形成三维纳米结构，以精确调整轻质结构材料的界面几何形状、成分和微观结构，并量化对其机械性能和耐腐蚀性的影响。更好地理解这些流程-结构关系将提供“编码”所需的基础知识。将纳米级构建块受控分层组装成表面结构的制造说明。该方法将用于解决轻质结构材料的两个关键挑战：1）合理设计聚合物基复合材料中的纳米结构界面相以调整其机械性能，2）提高镁合金的耐腐蚀性。该奖项反映了 NSF 的法定使命和通过使用基金会的智力价值和更广泛的影响审查标准进行评估，该项目被认为值得支持。

项目成果

Rational Design of Transparent Nanowire Architectures with Tunable Geometries for Preventing Marine Fouling

具有可调几何形状的透明纳米线结构的合理设计，用于防止海洋污染

• DOI: 10.1002/admi.202000672
• 发表时间: 2020-07-26
• 期刊: Advanced Materials Interfaces
• 影响因子: 5.4
• 作者: Jing Wang;Sudarat Lee;Ashley R. Bielinski;K. Meyer;Abhishek Dhyani;Alondra M. Ortiz;A. Tuteja;N. Dasgupta
• 通讯作者: N. Dasgupta

Tunable Atomic Layer Deposition into Ultra-High-Aspect-Ratio (>60000:1) Aerogel Monoliths Enabled by Transport Modeling

通过传输建模实现可调谐原子层沉积成超高纵横比 (>60000:1) 气凝胶整体

• DOI: 10.1021/acs.chemmater.1c00770
• 发表时间: 2021-07-27
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: Andrew J. Gayle;Zachary J. Berquist;Yuxin Chen;Ale;er J. Hill;er;Jacob Y. Hoffman;Ashley R. Bielinski;A. Lenert;N. Dasgupta
• 通讯作者: N. Dasgupta

Sodium mechanics: effects of temperature, strain rate, and grain rotation and implications for sodium metal batteries

钠力学：温度、应变率和颗粒旋转的影响以及对钠金属电池的影响

• DOI: 10.1016/j.eml.2022.101644
• 发表时间: 2022-04
• 期刊: Extreme Mechanics Letters
• 影响因子: 4.7
• 作者: LePage, William S.;Chen, Yuxin;Poli, Andrea;Thouless, M.D.;Dasgupta, Neil P.
• 通讯作者: Dasgupta, Neil P.

Electrically Conductive Kevlar Fibers and Polymer-Matrix Composites Enabled by Atomic Layer Deposition

通过原子层沉积实现导电凯夫拉纤维和聚合物基复合材料

• DOI: 10.1021/acsapm.1c01236
• 发表时间: 2021-10-14
• 期刊: ACS Applied Polymer Materials
• 影响因子: 5
• 作者: R. E. Rodríguez;T. Lee;Yuxin Chen;E. Kazyak;Claire Huang;Tae H. Cho;W. LePage;M. Thouless;M. Banu;N. Dasgupta
• 通讯作者: N. Dasgupta

Durable Liquid- and Solid-Repellent Elastomeric Coatings Infused with Partially Crosslinked Lubricants

注入部分交联润滑剂的耐用防液防固弹性体涂层

• DOI: 10.1021/acsami.2c03408
• 发表时间: 2022-05
• 期刊: ACS Applied Materials & Interfaces
• 影响因子: 9.5
• 作者: Wang, Jing;Wu, Bingyu;Dhyani, Abhishek;Repetto, Taylor;Gayle, Andrew J.;Cho, Tae H.;Dasgupta, Neil P.;Tuteja, Anish
• 通讯作者: Tuteja, Anish