Effects of laser power on nano-welding and morphology changes of multi-walled carbon nanotubes - 文章详情页

作者：

Yuan, Y. (Yuan, Y..) | Shang, Y. (Shang, Y..) | Chen, J. (Chen, J..)

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Scopus PKU CSCD

摘要：

In　this　study,　the　nanoscale　welding　and　morphology　changes　of　multi-walled　carbon　nanotubes　(MWCNTs)　were　focused　experimentally.　After　1064　nm　fiber　laser　irradiation,　MWCNTs　can　be　welded　together,　which　was　observed　by　scanning　electron　microscope　(SEM).　Effects　of　laser　power　density　and　irradiation　time　on　the　welding　and　morphology　changes　of　MWCNTs　were　investigated.　Experiments　show　that　nanoscale　welding　is　achieved　at　a　total　power　density　of　90　W/cm2.　Due　to　the　thermal　accumulation,　holes　and　na-noparticles　are　induced　during　higher　total　power　density　irradiation　and　aspects　ratios　of　MWCNTs　are　strongly　reduced.　©　2016,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.

关键词：

Laser technology; Multi-walled carbon nanotubes; Nanoscale welding; Scanning electron microscope

作者机构：

[ 1 ] [Yuan, Y.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Yuan, Y.]Beijing Engineering Research Center of 3D Printing for Digital Medical Health, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Shang, Y.]Beijing Engineering Research Center of 3D Printing for Digital Medical Health, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Shang, Y.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 5 ] [Chen, J.]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
[ 6 ] [Chen, J.]Beijing Engineering Research Center of 3D Printing for Digital Medical Health, Beijing University of Technology, Beijing, 100124, China

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