Pulsed laser micro and nano manufacturing

脉冲激光微纳制造

• 批准号: 313465-2011
• 负责人: Tan, Bo
• 金额: $ 1.97万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=571812
• 关键词: Pulsed; laser; micro; nano; manufacturing

Recent investigations by my research group have demonstrated that MHz repetition frequency femtosecond lasers are a uniquely useful tool for micro/nano-manufacturing. New materials and new processes can be enabled with the MHz femtosecond laser. The current proposal is developed on these new findings and aimed at understanding the fundamentals of nanomaterials formation and generating new tools and knowledge that will enable the fabrication of next generation products that find potential applications in aerospace industry. The research program involves fundamental study and process development. Fundamental study is intended to find the effect of processing parameters on the generated nanomaterials and nanofeatures. Particularly, this program will investigate phenomenon that are unique to Mega Hertz femtosecond laser ablation: 1) Voronoi-patterned nanoparticle agglomeration, 2) nano-fiber drawing from irradiated glass substrate, 3) nano-tips formation 4) rapid oxidization and amorphization with irradiation under ablation threshold and 5) instantaneous curing of PDMS. Knowledge derived from modelling studies will be used to improve or enable processes that could be used to control the generation of nanomaterial and the fabrication of micro/nano-structures. Process development will concentrate in two directions: (1) improve the resolution and machining quality of rapid site-specific oxidization and amorphization; 2) Fabrication of micro/nano features using nanomaterial-reinforced polymer nanocomposites. Various forms of nanomaterials that synthesized through Mega Hertz femtosecond laser ablation will be used as reinforcement fillers. Nano-composite features with dimensions in micro or nano-scale will be fabricated through either two-photon polymerization or localized thermal curing of nano-materials dispersed polymer resin. An important aspect of this research program is HQP training. In total, twelve students will be trained with not only technology acknowledge and skills but also nontechnical skills needed in their future careers.

我的研究小组的最新研究表明，MHz重复频率飞秒激光器是微/纳米制造的独特工具。 MHz飞秒激光器可以启用新材料和新工艺。当前的提案是针对这些新发现的，旨在了解纳米材料形成的基本原理，并生成新的工具和知识，这些工具和知识将能够制造下一代产品，从而在航空航天行业中找到潜在的应用。该研究计划涉及基本研究和过程开发。 基本研究旨在找到加工参数对产生的纳米材料和纳米造成的影响。特别是，该计划将调查Mega Hertz飞秒激光消融的现象：1）Voronoi-Patters-Patterned Nanoparpicle聚集，2）2）纳米纤维在辐照玻璃底物中绘制的纳米纤维，3）Nano-tips构造4）在放射下的快速氧化和不构造thressration和5）在plantiation thressration和5）下进行了刺激和5）。从建模研究中得出的知识将用于改进或启用可以用于控制纳米材料的产生和微观/纳米结构的制造的过程。 工艺发展将集中在两个方向上：（1）提高快速现场氧化和非形态化的分辨率和加工质量； 2）使用纳米材料增强聚合物纳米复合材料制造微/纳米特征。通过Mega Hertz飞秒激光消融合成的各种形式的纳米材料将用作增强填充剂。 纳米复合特征具有微或纳米尺度的尺寸，将通过两光子聚合物化或纳米材料分散聚合物树脂的局部热固化来制造。 该研究计划的一个重要方面是HQP培训。总的来说，十二名学生将不仅接受技术认可和技能的培训，而且还需要在未来职业中所需的非技术技能。