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澳大利亚西悉尼大学张莺燕博士到我院做学术报告

作者:易利军   已浏览:次  更新日期:2019-04-23

应宁波大学机械工程与力学学院邀请,澳大利亚西悉尼大学的张莺燕博士2019422日星期一来我院做学术报告,报告题目“Thermal and mechanical properties of Graphene-Polymer Nanocomposite”。学院部分教师和研究生参加了本次学术交流。

张博士主要分享了关于石墨烯-聚合物纳米复合材料界面热传输特性及其在高性能电子器件中的应用、石墨烯-聚合物纳米复合材料力学性质及宏观应用。其中张博士详细介绍了其课题组利用分子动力学(MD)模拟系统地研究石墨烯与纳米复合材料聚合物界面间热传递等方面研究,以及共价与非共价功能化、同位素掺杂和乙炔键对石墨烯的影响。仿真结果表明,共价与非共价官能团化技术可以显著降低纳米复合材料中石墨烯-聚合物界面的热阻。会后,张博士还学院相关教师商谈,希望基于宁波大学与西悉尼大学已有的校级协议,建立起宁波大学机械学院本科生与西悉尼大学工学院联合培养事宜。

  

  张莺燕博士于2000年在大连理工大学获得学士学位,并于2004年和2008年在新加坡国立大学获得硕士、博士学位,随后留校任博士后研究员。她于2010年加入了澳大利亚西悉尼大学任讲师,现已晋升为高级讲师(Senior Lecturer)。张博士研究方向包括:固体力学中的数值方法;基于分子力学及连续介质模型的纳米材料力学性能研究;石墨烯及其复合材料热传导的分子动力学模拟。目前已出版学术著作1部,专著4章,期刊论文73篇,被引用3697次,H因子为31

 

 

Thermal and mechanical properties of Graphene-Polymer Nanocomposite

    Invited by the School of Mechanical Engineering and Mechanics of Ningbo University, Dr. Yingyan Zhang from Western Syndey University, Australia, presented a talk entitled "Thermal and mechanical properties of Graphene-Polymer Nanocomposite" on Apiral 22th, 2019.

Fast growing power densities of modern electronic devices demand high-performance thermal interface materials (TIMs). Owing to a superior thermal conductivity of graphene, composites with graphene fillers dispersed in polymer matrix are expected to be promising TIM candidates. However, the thermal conductivity of graphene-polymer composites is hindered by a high thermal resistance across the interfaces between graphene fillers and polymer matrix.

The presentation will share our recent works about reducing the thermal transport across the graphene-polymer interfaces by employing a variety of treatment methods. Using molecular dynamics (MD) simulations, the effectiveness of covalent functionalisation, non-covalent functionalisation, dopants, defects and acetylenic linkages in reducing the graphene-polymer interfacial thermal resistance is investigated systematically. We found that the covalent and non-covalent functionalisation techniques could considerably reduce the graphene-polymer interfacial thermal resistance and they are a useful technique to enhance the thermal conductivity of the graphene-polymer composites.

Dr Yingyan Zhang obtained her Bachelor degree (2000) from Dalian University of Technology, China and Master (2004) and Ph.D degrees (2008) from National University of Singapore (NUS). Later, she worked as postdoc research fellow in Engineering Science Programme, NUS. Then, she jion the Western Sydney University in 2010 as a research lecturer. Dr. Zhang’s research interests include numerical method in Solid mechanics, the mechanical behavior of nano-matierials based on molecular dynamic simulations and continuum mechanics model, and thermal conduction in Graphene-Polymer Nanocomposite. Until now, she has published one book, 4 chapters in academic monograph, and 75 papers which have 3900 cites, and the H index is 31.

 
 
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