A Hybrid Nanomanufacturing Approach for the Synthesis of Artificial Nacres

合成人造珍珠母的混合纳米制造方法

• 批准号: 1067894
• 负责人: Pranav Shrotriya
• 金额: $ 19万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1067894&HistoricalAwards=false
• 关键词: Hybrid; Nanomanufacturing; Approach; Synthesis; Artificial

This award provides funding to investigate the feasibility of a combined top-down/bottom-up nanomanufacturing method to synthesize a bio-inspired AlMgB14/Ti micro-tool by mimicking, adapting and implementing the nanoscale morphology and analogous structure of nacre in the abalone shell. A femtosecond pulsed Ti:sapphire laser system in conjunction with molecular beam nozzle and computer generated holographic masking procedure will be used to deposit nanoscale thin films of "brick and mortar" nacre layers with angstrom resolution, pattern hexagonal tiles of nacre at high throughput, and nanotexture dimples and bridges. The effects of hierarchical organization of hard AlMgB14 and soft Ti layers on the types of fracture and energy absorption will be determined through a quantitative understanding of energy dissipation mechanisms such as rotation and deformation of nanograins under various types of loading.If successful, the laser-based nanomanufacturing approach will become superior to the time-consuming, cumbersome self-assembly methods for engineering the bio-inspired materials. The implementation of this nacre design will offer significant performance improvements in the micro/nano-tools used for micro-machining, micro/nano-EDM, probe-based nanomachining and micro-coining. Research will contribute to the development of more energy-efficient, cleaner and sustainable society by minimizing power consumption, energy losses and component replacement frequency. Educational impact will include: develop a hands-on module for K-12 students and host a workshop for students and industry participants on bio-inspired nanomanufacturing; and promote the recruitment and participation of women and underrepresented groups by leveraging several university programs.

该奖项提供资金，以研究自上而下/自下而上相结合的纳米制造方法的可行性，通过模仿，适应和实施鲍鱼壳中珍珠层的纳米级形态和类似结构来合成生物启发的AlMgB 14/Ti微型工具。 飞秒脉冲钛：蓝宝石激光系统结合分子束喷嘴和计算机生成的全息掩模程序将用于存款纳米级薄膜的“砖和砂浆”珍珠层与埃的分辨率，图案六边形瓷砖的珍珠层在高吞吐量，和纳米纹理凹痕和桥梁。硬AlMgB 14和软Ti层的分级组织对断裂和能量吸收类型的影响将通过对能量耗散机制的定量理解来确定，例如在各种类型的负载下纳米颗粒的旋转和变形。如果成功，基于激光的纳米制造方法将上级耗时，繁琐的自组装方法来设计生物启发材料。这种珍珠层设计的实施将为用于微加工、微/纳米电火花加工、基于探针的纳米加工和微压印的微/纳米工具提供显著的性能改进。研究将通过最大限度地减少电力消耗、能源损失和部件更换频率，为发展更节能、更清洁和可持续的社会做出贡献。 教育影响将包括：为K-12学生开发一个实践模块，并为学生和行业参与者举办一个关于生物启发纳米制造的研讨会;并通过利用几个大学项目促进妇女和代表性不足群体的招聘和参与。