武汉光电论坛第163期

报告题目：大面积的激光纳米制造

Scalable Laser Based Nano-Manufacturing

时间：2019年11月27日10:00-12:00

地点：武汉光电国家研究中心A101

报告人：程佳瑞教授，普渡大学

邀请人：朱明强教授

报告人简介：

程佳瑞教授2002年于美国哥伦比亚大学获机械工程专业博士学位。2003年起，陆续在华盛顿州立大学、休斯顿大学、普渡大学担任助理教授、副教授、正教授。2011年进入普渡大学创新名人堂，并入选普渡大学University Faculty Scholar (大学学院学者)。

程教授在先进制造工程领域颇具建树，主要研究兴趣为：利用激光制造实现先进材料的合成和加工，特别是大规模制造金属微纳结构、热变形/相变、及材料力学诱导物理性能研究，实现在能量转换、存储和承载、传输，生物医学，电子、光电子器件等方面的应用。针对航空结构材料、功能纳米材料、薄膜材料及二维材料等，利用大尺寸激光加工技术，研究材料的多维空间结构/微纳结构与材料物理性能间的内在关联。另外还研究激光与物质间相互作用的基本机制，以及利用激光加工实现材料独特的结构，并研究其力学、物理、光电相关特性。程教授已发表200余篇学术论文和5部学术专著，在激光制造领域颇具影响力，其中发表的SCI论文包括Science, Advanced Materials, Materials Today, Nano Letters, ACS Nano, Nano Today, Advanced Functional Materials, Acta Materials等，并被Nature Photonics, Nature Review Materials等杂志亮点评价。程教授曾经和现在共担任了三个SCI杂志的副主编，包括：Journal of Manufacturing Process, Journal of Materials Processing and Technology, Frontier in Materials。程教授是美国机械协会技术委员会委员、NAMRI科学委员会副主席，并获得美国自然科学基金CAREER 奖，海军研究室YIP奖，ASME杰出青年研究员奖(全美每年一位，40岁以下)、制造工程协会（ＳＭＥ）杰出青年奖，美国国家研究委员会（NRC）高级研究员奖。

Biography:

Prof. Cheng graduated from USTB in 1993 with a bachelor's degree in materials science and engineering and from USTB in 1996 with a master's degree in materials science and engineering. He received his PhD in mechanical engineering from Columbia University in 2002. Since 2003, he has been an assistant, associate and full professor at Washington state university, the university of Houston and Purdue university, respectively. In 2011, he was admitted into Purdue university's innovation hall of fame and selected as University Faculty Scholar.  He has been awarded by NSF CAREER program, ONR Yong investigator Progream, AMSE Young Investigator, SME Outstanding Young Engineer, National Research Council  Senior Research Associate Program.  Prof. Cheng has a remarkable accomplishment in the field of advanced manufacturing engineering, research interests including in: using laser manufacturing to realize advanced materials synthesis and processing, especially in large-scale manufacturing metal micro-nano structure, the thermal deformation/phase transition, and the mechanics of materials induced by physical performance, mainly implemented in energy conversion, storage and loading and transport, biological medicine, electronic and optoelectronic devices, etc. Aiming at the aviation structural materials, functional nanomaterials, thin film materials and two-dimensional materials, Prof. Cheng studies the basic principles between the multi-dimensional geometric structure/micro-nano structure of materials and the physical properties of materials by using large-size laser processing technology. In addition, the basic mechanism of the interaction between laser and matter is also studied, and the unique structure of the material is realized by laser processing, and its mechanical, physical and photoelectric characteristics are also studied. Prof. Cheng has already published more than 200 academic papers and 5 academic monographs.

https://engineering.purdue.edu/SMNML

报告摘要：

我们最近在结构和功能组件中对工程纳米结构的生成和集成进行探索，为能源、汽车、航空航天、生物医学、电子和光子学应用的材料系统的大规模制造提供了新的技术和机遇。本次报告从概述我们先进材料加工的研究方法开始，提倡以科学为基础的材料工程，而不是以经验为基础的材料工程。着重汇报我们最近在大规模制造结构和功能组件的纳米工程结构方面的研究。利用混合激光能量源将工程纳米结构集成到三维结构构件中，使得材料的强度、成形性、疲劳寿命、耐腐蚀性等方面均有显著提高。开发了基于光机械的制造平台，用于制备大面积的纳米材料(如金属、陶瓷、一维-二维晶体)，以及纳米膜和二维晶体的应变工程。激光激波诱导的相变将被用于直接制备纳米材料(0D和2D)。集成可用于电子增材制造的功能纳米晶体(2D材料、纳米线和纳米点)和利用卷对卷制造工艺制备应变、界面、缺陷、晶体结构等物理性能可控的功能器件。另外，将激光直写技术应用于光伏器件（PVs）薄膜的增材制造、柔性电子器件和能量存储等领域。最后，将讨论基于激光微纳米增材制造机械超材料。

Abstract:

Our recent explorations into the generation and integration of engineered nanostructures in structural and functional components have enabled new opportunities and challenges in large scale manufacturing of materials system for energy, automobile, aerospace, biomedical, electronics and photonics applications. This seminar starts with overviewing the methodologies of our research group in advanced materials processing that promote the science-based engineering of materials instead of empirically based engineering. This talk will focus on our recent study on large scale manufacturing of nanoengineered structures for structural and functional components. Hybrid laser energy sources were utilized to integrate engineered nanostructures in 3D structural components, leading to significant improvement in strength, formability, fatigue life, corrosion resistance. Photo-mechanical based manufacturing platform has been developed to generate large area nanopatterning (down to 10 nm) of crystalline materials (e.g. metals, ceramcis, 1D-2D crystals), and strain engineering of nanomembranes and 2D crystals. Laser shock induced meta-phase transformation will be discussed for direct manufactruring of patterned nanomaterials (0D and 2D). Functional nanocrystals (2D materials, nanowires and nano-dots) isintegratedin electronic additive manufacturing and roll to roll manufacturing isappliedfor functional devices with control of strain, interface, defects, crystalline structure, for desired physical properties. Laser direct writing for additive electronics manufacturing thin film PVs, and flexible electronics, and energy storage will be discussed. Finally, laser based micro-nanoscale additive manufacturing will be discussed for mechanical metamaterials.

武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座，共享光电知识盛宴，诚邀您的参与！

第100期起报告视频，访问http://www.wxbgt.com/，搜索“武汉光电论坛”字样

第71-99期报告视频，访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”，在首页搜索“武汉光电论坛”