Microfluidic Printing of Interspersed and Interpenetrating Multicomponent Ceramic Architectures

散布和互穿多组分陶瓷结构的微流体印刷

• 批准号: 1305284
• 负责人: Jennifer Lewis
• 金额: $ 62万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2018-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1305284&HistoricalAwards=false
• 关键词: Microfluidic; Printing; Interspersed; Interpenetrating; Multicomponent

NON-TECHNICAL DESCRIPTION: Three-dimensional (3D) printing offers the potential to digitally specify the form and function of materials. This project focuses on patterning 3D ceramic architectures by designing and implementing microfluidic printheads for use with model colloidal suspensions - i.e. concentrated fluids, gels, and biphasic mixtures - whose flow behavior can be directly imaged within microfluidic core-shell and multinozzle printheads. Advances from this research effort are expediting the transformation of 3D printing from rapid prototyping to a true manufacturing platform. The fundamental knowledge gained from this program of research will enable low-cost, high-throughput printing of designer ceramics that may find application as 3D ceramic composites, membranes, and battery electrodes. In addition, new scientific understanding of the flow and mixing of concentrated colloidal suspensions within confined microfluidic geometries is emerging from this effort. TECHNICAL DETAILS: This project focuses on 3D printing of concentrated colloidal inks in interspersed and interpenetrating motifs using microfluidic core-shell and multinozzle printheads. Fundamental relationships between ink rheology, printhead designs, and printing behavior are being systematically investigated. The resulting 3D ceramic architectures may offer significant performance advantages in a broad range of applications, including lightweight composites, membranes, and batteries. The project integrates multiple education and outreach activities aimed at expanding the number of underrepresented groups in science, technology, engineering and mathematics (STEM) through public lectures and hands-on activities as well as by creating scientific videos of our research targeted for the DIY (do-it-yourself) and maker communities.

非技术描述：三维（3D）打印提供了数字指定材料形式和功能的潜力。该项目通过设计和实现用于胶体悬浮液模型（即浓缩流体、凝胶和双相混合物）的微流控打印头，专注于3D陶瓷结构的图像化，这些胶体悬浮液的流动行为可以在微流控核壳和多喷嘴打印头中直接成像。这项研究的进展正在加速3D打印从快速原型到真正的制造平台的转变。从该研究项目中获得的基础知识将使设计陶瓷的低成本、高通量打印成为可能，这些设计陶瓷可能应用于3D陶瓷复合材料、膜和电池电极。此外，新的科学认识流动和混合的集中胶体悬浮液在受限的微流体几何形状正在出现从这一努力。技术细节：本项目着重于使用微流控核壳和多喷嘴喷头在穿插和互穿的图案中进行浓缩胶体油墨的3D打印。油墨流变学、打印头设计和印刷行为之间的基本关系正在被系统地研究。由此产生的3D陶瓷结构可以在广泛的应用中提供显着的性能优势，包括轻质复合材料，膜和电池。该项目整合了多种教育和外展活动，旨在通过公开讲座和实践活动，以及为DIY（自己动手）和创客社区制作我们的研究科学视频，扩大科学、技术、工程和数学（STEM）领域代表性不足的群体的数量。