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Related Experiment Video

Updated: Jun 14, 2025

Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced In Vivo Imaging
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Reducing Feature Size in Laser Implantation Texturing.

Bart Ettema1, Dave Matthews1, Gert-Willem Römer1

  • 1Faculty of Engineering Technology, University of Twente, Drienerloolaan 5, 7522 NB Enschede, The Netherlands.

Micromachines
|August 29, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces laser implantation, a novel micro-additive process for embedding ceramic particles into embossing rolls. This technique creates harder, textured surfaces with improved design freedom for various industrial applications.

Keywords:
laser dispersionlaser implantationlaser texturingsurface structuringsurface texturing

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Area of Science:

  • Materials Science
  • Surface Engineering
  • Additive Manufacturing

Background:

  • Embossing rolls transfer textures but often use material-removal techniques, creating surface craters.
  • Wear resistance is typically enhanced with post-coating methods.
  • A novel approach involves embedding ceramic particles for improved surface design and wear resistance.

Purpose of the Study:

  • To present experimental results of surface texturing via laser-induced melt pools with embedded ceramic particles.
  • To investigate the feasibility of laser implantation for creating micro-scale surface structures.
  • To explore smaller feature sizes for wider surface roughness applications.

Main Methods:

  • Utilized micro-additive processing through laser implantation (laser dispersing).
  • Generated locally derived laser-induced melt pools to dissolve ceramic particles.
  • Employed a Nd:YAG laser source with specific parameters (70 μm focal diameter, 3-15 ms pulse duration, 20-50 W average power).

Main Results:

  • Achieved dome-shaped surface structures with significantly increased hardness compared to bare steel.
  • Successfully embedded micro-meter-sized ceramic particles into the roll surface.
  • Demonstrated the creation of features with diameters smaller than 150 µm and heights between 1 μm and 15 μm.

Conclusions:

  • Laser implantation offers improved surface design freedom and eliminates the need for post-coating techniques.
  • The process enables the creation of micro-scale textured surfaces with enhanced hardness.
  • This technology facilitates wider applications by allowing for finer control over surface roughness.