CAREER: Understanding the Printability of Liquid Metal Dispersions for Additive Manufacturing

职业：了解增材制造液态金属分散体的可印刷性

• 批准号: 1812948
• 负责人: Rebecca Kramer-Bottiglio
• 金额: $ 36.23万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2021-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1812948&HistoricalAwards=false
• 关键词: CAREER; Understanding; Printability; Liquid; Metal

This Faculty Early Career Development (CAREER) Program grant will investigate an additive manufacturing process using liquid metal. This work has the potential to enable a new class of stretchable electronic devices to serve as platforms for soft robotics, safe human-machine interaction, active orthotics, wearable interfaces, or assistive medical devices for motion aid, prolonged endurance, and health-monitoring. In this research program, stretchable composite materials with electronic functionality will be created by printing liquid-metal traces in elastic polymers. The composite materials are expected to retain the function of rigid metal conductors while leveraging the highly deformable properties of the plastic matrix. The work will focus on the fundamental problems surrounding the processing of liquid metal in order to develop a scalable manufacturing process. The educational and outreach activities include the development of a low-cost, accessible, and scalable soft robot designed for middle- and high-school students.Additive manufacturing with liquid-metal dispersions will bridge the gap between well-established scalable liquid processing, such as printing, and the processing of emerging soft functional materials that exhibit high surface tension, viscosity, and density properties that typically preclude printability. The research objective of this project is to derive and validate the fundamental electromechanical behavior of liquid-metal dispersions during synthesis, deposition, and coalescence. The mechanical response of liquid-metal through these three processing phases will be coupled to its bulk electrical response using experiments, theories, and numerical models across different length scales. This grant will enable a fundamental understanding of the basic principles underlying scalable materials processing for soft electromechanical systems and will significantly improve our ability to design soft machines that deform, react to their environment, and adapt.

这项教师早期职业发展（职业）计划赠款将使用液体金属调查增材制造过程。这项工作有可能使一类新的可拉伸电子设备作为软机器人技术，安全的人机相互作用，主动矫形器，可穿戴界面或辅助医疗设备的平台，以进行运动辅助，延长耐力和健康监测。在该研究计划中，将通过在弹性聚合物中打印液态痕迹来创建具有电子功能的可拉伸复合材料。预计复合材料将保留刚性金属导体的功能，同时利用塑料基质的高度变形性能。这项工作将集中于围绕液态金属加工的基本问题，以开发可扩展的制造过程。教育和外展活动包括开发专为中学生和高中生设计的低成本，可访问和可扩展的软机器人。具有液体金属分散剂的辐射制造将弥合良好的可伸缩液体处理之间的差距，例如印刷，例如，诸如表现出高表面紧张，可构图的新兴软功能的材料，这些材料的处理能力，可构成高表面紧张，可构成型，构成典型的特性，并建议使用典型的典型性。该项目的研究目标是在合成，沉积和合并过程中得出和验证液压分散体的基本机电行为。液态在这三个处理阶段的机械响应将与不同长度尺度上的实验，理论和数值模型相结合。该赠款将使对软机电系统的可扩展材料处理基本原理的基本原理有了基本的了解，并将显着提高我们设计的软计算机的能力，使其变形，对其环境做出反应并适应。