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Microparticle Impact Testing at High Precision, Higher Temperatures, and with Lithographically Patterned Projectiles
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, 02139, MA, United States.ORCID iD: 0000-0001-9980-7434
2023 (English)In: Small Methods, ISSN 23669608, Vol. 7, no 1Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Wiley , 2023. Vol. 7, no 1
Keywords [en]
high-velocity impact, laser-induced particle impact testing, launch pads, metals, microscale testing
National Category
Mechanical Engineering Materials Engineering Natural Sciences
Identifiers
URN: urn:nbn:se:kth:diva-339189DOI: 10.1002/smtd.202201028ISI: 000897115200001PubMedID: 36517113Scopus ID: 2-s2.0-85144116161OAI: oai:DiVA.org:kth-339189DiVA, id: diva2:1809878
Note

QC 20231106

Available from: 2023-11-06 Created: 2023-11-06 Last updated: 2023-11-06Bibliographically approved

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Publisher's full textPubMedScopushttps://doi.org/10.1002%2Fsmtd.202201028

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Reiser, Alain

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
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  • en-US
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  • nn-NO
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Output format
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