Tag: irradiation

The solar system as a new frontier for materials at extremes

~ Matheus A. Tunes ~ Leave a comment

Sharing my new seminar slides with the community on the challenges to design and evaluate new materials for extraterrestrial applications! This research has been only possible via an international collaboration with the brilliant metallurgy minds present at the Montanuniversität Leoben! Super interesting new works coming very very soon! Available at the ResearchGate! (LA-UR-22-23107) https://www.researchgate.net/publication/359771021_The_solar_system_as_a_new_frontier_for_materials_at_extremes

Magnetic nanoislands: our interview to “Jornal da USP”

~ Matheus A. Tunes ~ Leave a comment

Our interview to Journal da USP is now online, in Portuguese: https://jornal.usp.br/ciencias/liga-metalica-esconde-material-magnetico-com-potencial-para-aprimorar-dispositivos-eletronicos/ A link with an English translation provided by Google is here: https://jornal-usp-br.translate.goog/ciencias/liga-metalica-esconde-material-magnetico-com-potencial-para-aprimorar-dispositivos-eletronicos/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US

Discovery of FeCo nanomagnets under irradiation in a high-entropy alloy

~ Matheus A. Tunes ~ 1 Comment

A modified version of the well-known Cantor's alloy, the nanocrystalline CoCrCuFeNi high-entropy alloy was subjected to heavy-ion irradiation in situ within a TEM in our most recent study within the field of potential new nuclear materials. The stability of the alloy was investigated in a broad range of irradiation doses and temperature, revealing the nucleation … Continue reading Discovery of FeCo nanomagnets under irradiation in a high-entropy alloy

Controlling radiation damage in nanomaterials

~ Matheus A. Tunes ~ Leave a comment

Nanomaterials are offering unique opportunities for the design of future nuclear materials. In our recent paper at ACS Applied Nano Materials, we demonstrate that AISI-316 steel nanoparticles are capable of self-healing from the deleterious effect of heavy-ion collisions. We also pose a new question to the materials community on the recyclability of potential nuclear nanomaterials. … Continue reading Controlling radiation damage in nanomaterials

Ceramic coatings for Accident Tolerant Fuels (ATF): the case of titanium nitride (TiN)

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Our first scientific paper on ceramic coatings for ATFs systems is finally published (in press) at the Journal of Nuclear Materials and it can be downloaded in this link. The paper addresses on the radiation tolerance of nanocrystalline magnetron-sputtered titanium nitride thin films. The coatings were subjected to medium energy heavy-ion irradiation at the homologous … Continue reading Ceramic coatings for Accident Tolerant Fuels (ATF): the case of titanium nitride (TiN)

Are TiN coatings appropriate candidates for accident tolerant fuels?

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I am so delighted to announce that our paper "Energetic particle irradiation study of TiN coatings: are these films appropriate for accident tolerant fuels?" has just been accepted for publication at the Journal of Nuclear Materials! In this study, we have used heavy ion irradiation in situ within a Transmission Electron Microscopy to investigate whether Titanium Nitride … Continue reading Are TiN coatings appropriate candidates for accident tolerant fuels?

Inert gas bubbles and voids: a posed challenge for the future of nuclear fusion

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Future controlled thermonuclear reactors (CTR) will produce large quantities of He gas. The nuclear fusion reaction between deuterium (D) and tritium (T) nuclei predicts the generation of a highly-energetic He atom (3.5 MeV) and an additional neutron with around of 14 MeV. Compared to current existing nuclear fission reactors, CTRs will be very aggressive environments for … Continue reading Inert gas bubbles and voids: a posed challenge for the future of nuclear fusion