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Substrate thermal conductivity controls the ability to manufacture microstructures via laser-induced direct write

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5016073· OSTI ID:1426810
 [1];  [2];  [2];  [1];  [3];  [4]
  1. Univ. of Virginia, Charlottesville, VA (United States). Department of Materials Science and Engineering
  2. Univ. of Virginia, Charlottesville, VA (United States). Department of Mechanical and Aerospace Engineering
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Advanced Materials Laboratory
  4. Univ. of Virginia, Charlottesville, VA (United States). Department of Materials Science and Engineering, Department of Mechanical and Aerospace Engineering and Department of Physics
In controlling the thermal properties of the surrounding environment, we provide insight into the underlying mechanisms driving the widely used laser direct write method for additive manufacturing. In this study, we find that the onset of silver nitrate reduction for the formation of direct write structures directly corresponds to the calculated steady-state temperature rises associated with both continuous wave and high-repetition rate, ultrafast pulsed laser systems. Furthermore, varying the geometry of the heat affected zone, which is controllable based on in-plane thermal diffusion in the substrate, and laser power, allows for control of the written geometries without any prior substrate preparation. In conclusion, these findings allow for the advance of rapid manufacturing of micro- and nanoscale structures with minimal material constraints through consideration of the laser-controllable thermal transport in ionic liquid/substrate media.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1426810
Report Number(s):
SAND--2018-1917J; 660850
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 5 Vol. 112; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Nanostructure and Mechanism of Metal Deposition by a Laser‐Induced Photothermal Reaction journal May 2019

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