NDLI: Formation of Nanospikes on AISI 420 Martensitic Stainless Steel under Gallium Ion Bombardment

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Formation of Nanospikes on AISI 420 Martensitic Stainless Steel under Gallium Ion Bombardment

Content Provider	Semantic Scholar
Author	Cenev, Zoran Bartenwerfer, Malte Klauser, Waldemar Jokinen, Ville Fatikow, Sergej Zhou, Quan
Copyright Year	2019
Abstract	The focused ion beam (FIB) has proven to be an extremely powerful tool for the nanometer-scale machining and patterning of nanostructures. In this work, we experimentally study the behavior of AISI 420 martensitic stainless steel when bombarded by Ga+ ions in a FIB system. The results show the formation of nanometer sized spiky structures. Utilizing the nanospiking effect, we fabricated a single-tip needle with a measured 15.15 nanometer curvature radius and a microneedle with a nanometer sized spiky surface. The nanospikes can be made straight or angled, depending on the incident angle between the sample and the beam. We also show that the nanospiking effect is present in ferritic AISI 430 stainless steel. The weak occurrence of the nanospiking effect in between nano-rough regions (nano-cliffs) was also witnessed for austenitic AISI 316 and martensitic AISI 431 stainless steel samples.
File Format	PDF HTM / HTML
DOI	10.3390/nano9101492
PubMed reference number	31635089
Journal	Medline
Volume Number	9
Alternate Webpage(s)	https://research.aalto.fi/files/39528359/ELEC_Cenev_etal_Formation_of_Nanospikes_Nanomaterials_9_10_1492_finalpublishedversion.pdf
Alternate Webpage(s)	https://res.mdpi.com/d_attachment/nanomaterials/nanomaterials-09-01492/article_deploy/nanomaterials-09-01492-s001.pdf
Alternate Webpage(s)	https://res.mdpi.com/d_attachment/nanomaterials/nanomaterials-09-01492/article_deploy/nanomaterials-09-01492.pdf
Alternate Webpage(s)	https://doi.org/10.3390/nano9101492
Journal	Nanomaterials
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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