Author: Matheus A. Tunes

An experimental physicist who enjoys the company of intriguing people and is able to endure many cups of coffee and engage in endless scientific discussions.

Maximizing corrosion resistance of aerospace aluminium with self-healing coatings

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The use of sol-gel coatings to increase the corrosion resistance of commercial aerospace aluminium alloys is the topic of our most-recent paper at Corrosion Science. In combination with anodization treatment and the use of Ce nanoparticles to fill-in the pores of the anodic layer, we have observed that a post-treatment with sol-gel coatings further increases … Continue reading Maximizing corrosion resistance of aerospace aluminium with self-healing coatings

An entire life dedicated to nuclear radiation physics and mentorship

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Professor Kenya Moore de Almeida Dias da Cunha was a Brazilian nuclear physicist who dedicated her entire life to the study of actinide materials and in the academic education and scientific initiation of the next generation of research scientists. She was a lovely and passionate experimental scientist -- to the best definition of the term … Continue reading An entire life dedicated to nuclear radiation physics and mentorship

The influence of He bubble in strengthening of Copper

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It is good to see that scientists are working hard to better evaluate the effect of He bubbles in metals and alloys! Sharing a very interesting new article showing unequivocally the influence of He bubbles in the strengthening behavior of Copper! By using shock loading, Lear et al. discovered that He bubbles totally collapse, leaving … Continue reading The influence of He bubble in strengthening of Copper

New H-based materials for use in micro-nuclear-reactors

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We just got a preprint available in arXiv.org for the general audience: "Fabrication of bulk delta-phase Zirconium Hydride from Zircaloy-4 for use as moderators in microreactors" (arXiv:2305.02249v1) In this manuscript, we performed a complete electron-microscopy characterization of the delta-phase Zirconium Hydride (delta-ZrH) currently under manufacturing, research and development to be used as moderator materials in … Continue reading New H-based materials for use in micro-nuclear-reactors

Amorphous and Refractory High Entropy Alloys

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In this very interesting new field of research on refractory amorphous high entropy alloys (RAHEA), we present a case where two different RAHEAs have been synthesized and tested under extreme environments: the WTaCrV and WTaCrVHf. We discuss the parameters that may guide the design and application of these interesting alloys in future nuclear reactors and … Continue reading Amorphous and Refractory High Entropy Alloys

Novel high entropy ceramics for extreme environments

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We investigate the radiation response of a hard refractory high entropy carbide (HEC): the (CrNbTaTiW)C. Comparison with the high entropy alloy (HEA) has shown the HEC outperforms the HEA under irradiation. Results suggest high-entropy ceramics can be alternative to HEAs in extreme environments. Available now at Acta Materialia (open access)! Do not forget to see … Continue reading Novel high entropy ceramics for extreme environments

Advancing the field of fine-grained aluminium alloys

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In a new pre-print available at SSRN Electronic Journal, Samberger et al. introduce a new concept for fine-grained aluminium alloys. The authors shows a process of synthesis that resulted in a fine-grained aluminium crossover alloys intended to be applied in high-temperature forming processes. The use of EBSD unravels the active role of T-phase precipitates on … Continue reading Advancing the field of fine-grained aluminium alloys

A decade probing the radiation response of Ti-based MAX phases

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Can Ti-based MAX phases -- this new class of potential functional materials -- be applied in future nuclear reactors? We investigated the response of Ti-based MAX phases to both neutrons and heavy ions. The discoveries of this intense decade-long research has just been published at Materials Today Energy. Open access article access here: https://doi.org/10.1016/j.mtener.2022.101186

Using the Plasma FIB as a revolutionary tool for studying radiation effects in solids: cover page award!

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Our recent work entitled "Rethinking radiation effects in materials science using the plasma-focused ion beam" published in the September issue of the historically prestigious Journal of Materials Science (Springer) has been awarded the cover page of the November 2022 issue (volume 57, number 41). A very nice editorial has been written by Professor C. Barry … Continue reading Using the Plasma FIB as a revolutionary tool for studying radiation effects in solids: cover page award!