• <tr id='vAQP6L'><strong id='vAQP6L'></strong><small id='vAQP6L'></small><button id='vAQP6L'></button><li id='vAQP6L'><noscript id='vAQP6L'><big id='vAQP6L'></big><dt id='vAQP6L'></dt></noscript></li></tr><ol id='vAQP6L'><option id='vAQP6L'><table id='vAQP6L'><blockquote id='vAQP6L'><tbody id='vAQP6L'></tbody></blockquote></table></option></ol><u id='vAQP6L'></u><kbd id='vAQP6L'><kbd id='vAQP6L'></kbd></kbd>

    <code id='vAQP6L'><strong id='vAQP6L'></strong></code>

    <fieldset id='vAQP6L'></fieldset>
          <span id='vAQP6L'></span>

              <ins id='vAQP6L'></ins>
              <acronym id='vAQP6L'><em id='vAQP6L'></em><td id='vAQP6L'><div id='vAQP6L'></div></td></acronym><address id='vAQP6L'><big id='vAQP6L'><big id='vAQP6L'></big><legend id='vAQP6L'></legend></big></address>

              <i id='vAQP6L'><div id='vAQP6L'><ins id='vAQP6L'></ins></div></i>
              <i id='vAQP6L'></i>
            1. <dl id='vAQP6L'></dl>
              1. <blockquote id='vAQP6L'><q id='vAQP6L'><noscript id='vAQP6L'></noscript><dt id='vAQP6L'></dt></q></blockquote><noframes id='vAQP6L'><i id='vAQP6L'></i>


                2019-04-26 17:04   航空学院 审核人:   (点击: )

                时 间:2019年5月9日(星期四) 9:00-10:30

                地 点:航空楼A706

                报 告 人:西安交通大学陈小明教授

                邀 请 人:张超教授

                报 告 题目:Nanomechanical characterization of the mechanical strength of carbon nanotube - polymer interfaces


                陈小明博士现任西安交通大学机械工程学院教授。陈小明博云海門兩大太上長老其中士于2014年获得美国纽约州立大学宾右眼汉姆顿分校机械工程专业博士学位。并分别于2016和2017年入选西安交通大学“青年拔尖10分快3”支持计划和国家级青年10分快3培养计不划。他主要从事微纳制ζ造技术及微纳尺度界面效应等ω 方面研究,主持或参加国家自然科学基金來首訂艾兄弟們和国家重点研发计划等国家级项目4项;并参与美国美国空军科学研究项目,美国国家自然科学基金项目等国家级项目4项。在国际重要刊物上发表论文二十余篇,并①参与撰写学术书籍2部,担任十余个国际高水平期◆刊评审专家。研究成果被包括Nature, Physical Review Letters等高水平期刊引用及被国际ScienceDaily, Phys.org等十多个知名那就自己等死了科学信息平台报导。


                The light, strong and durable characteristics of nanofiber-reinforced polymer-matrix nanocomposites are attractive to a number of industries such as the aerospace and automotive industries. Carbon nanotubes (CNTs) are one of the most promising reinforcing fibers for nanocomposite due to their ultra-strong, resilient and low-density properties. However, the understanding of the interfacial load transfer on CNT-polymer interfaces remains elusive. In this talk, we present experimental studies of the mechanical strength of the interfaces formed by individual CNTs with PMMA/Epoxy matrices. The nanotube-polymer interfacial strength was characterized by using in situ electron microscopy nanomechanical single-tube pull-out techniques. By pulling out individual double-walled nanotubes from polymer matrices using atomic force microscopic force sensors inside a high-resolution scanning electron microscope, both the pull-out force and the embedded tube length were measured with resolutions of a few nano-newtons and nanometers, respectively. The interfacial shear strength (IFSS) of the CNT-polymer interface was quantified through interpreting the nanomechanical single-tube pull-out measurements using a continuum mechanics model. The nanomechanical measurements reveal the shear-lag effect in the load transfer on the CNT-polymer interface. The research findings help to better understand the load transfer on the tube-polymer interface and the reinforcing mechanism of the nanotubes, and ultimately contribute to the optimal design and performance of nanotube-reinforced polymer nanocomposites.