Microparticle Impact Testing at High Precision, Higher Temperatures, and with Lithographically Patterned Projectiles
Name
Small Methods - 2022 - Reiser - Microparticle Impact Testing at High Precision Higher Temperatures and with.pdf
Description
Published version
Size
2.09 MB
Format
Adobe PDF
Checksum (MD5)
1545ce6cf2e3ef770120e03ed08387d8
Author(s)
Reiser, Alain
Schuh, Christopher A
Date Issued
January 2023
Journal
Small Methods
Publisher
Wiley
Citation
Reiser, Alain and Schuh, Christopher A. 2023. "Microparticle Impact Testing at High Precision, Higher Temperatures, and with Lithographically Patterned Projectiles." Small Methods, 7 (1).
Version
Final published version
Abstract
In the first decade of high-velocity microparticle impact research, hardly any modification of the original experimental setup has been necessary. However, future avenues for the field require advancements of the experimental method to expand both the impact variables that can be quantitatively assessed and the materials and phenomena that can be studied. This work explores new design concepts for the launch pad (the assembly that launches microparticles upon laser ablation) that can address the root causes of many experimental challenges that may limit the technique in the future. Among the design changes contemplated, the substitution of a stiff glass launch layer for the standard elastomeric polymer layer offers a number of improvements. First, it facilitates a reduction of the gap between launch pad and target from hundreds to tens of micrometers and thus unlocks a reproducibility in targeting a specific impact location better than the diameter of the test particle itself (±1.75 µm for SiO2 particles 7.38 µm in diameter). Second, the inert glass surface enables experiments at higher temperatures than previously possible. Finally-as demonstrated by the launch of thin-film Au disks-a launch pad made of materials standard in microfabrication paves the way to facile microfabrication of advanced impactors.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1002/smtd.202201028
