Laser shock wave assisted patterning on NiTi shape memory alloy surfaces

Dovletgeldi Seyitliyev, Peizhen Li, Khomidkhodza Kholikov, Byron Grant, Haluk E. Karaca, Ali O. Er

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


An advanced direct imprinting method with low cost, quick, and less environmental impact to create thermally controllable surface pattern using the laser pulses is reported. Patterned micro indents were generated on Ni50Ti50 shape memory alloys (SMA) using an Nd:YAG laser operating at 1064 nm combined with suitable transparent overlay, a sacrificial layer of graphite, and copper grid. Laser pulses at different energy densities which generates pressure pulses up to 10 GPa on the surface was focused through the confinement medium, ablating the copper grid to create plasma and transferring the grid pattern onto the NiTi surface. Scanning electron microscope (SEM) and optical microscope images of square pattern with different sizes were studied. One dimensional profile analysis shows that the depth of the patterned sample initially increase linearly with the laser energy until 125 mJ/pulse where the plasma further absorbs and reflects the laser beam. In addition, light the microscope image show that the surface of NiTi alloy was damaged due to the high power laser energy which removes the graphite layer.

Original languageEnglish
Title of host publicationLaser-Based Micro- and Nanoprocessing XI
EditorsUdo Klotzbach, Rainer Kling, Kunihiko Washio
ISBN (Electronic)9781510606258
StatePublished - 2017
EventLaser-Based Micro- and Nanoprocessing XI 2017 - San Francisco, United States
Duration: Jan 31 2017Feb 2 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceLaser-Based Micro- and Nanoprocessing XI 2017
Country/TerritoryUnited States
CitySan Francisco

Bibliographical note

Publisher Copyright:
© 2017 SPIE.


  • drag friction
  • laser-shockwave
  • patterned surfaces
  • plasma

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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