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Marco Cantoni

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Publications associées (71)

STEM study of Li4Ti5O12 anode material modified with Ag nanoparticles

Marco Cantoni, Malgorzata Maria Michalska, Mariusz Andrzejczuk

Comprehensive scanning transmission electron microscopy (STEM) analysis of Li4Ti5O12 (LTO) powder modified by deposited Ag nanoparticles was performed. Nanocomposite powders with Ag content of 1 wt.%, 4 wt.%, 10 wt.% were fabricated in a chemical process f ...

Wiley-Blackwell2016

Mechanical and microstructural characteristics of Ti6Al4V/AA2519 and Ti6Al4V/AA1050/AA2519 laminates manufactured by explosive welding

Marco Cantoni

The aim of the work was to produce laminated structures consisting of Ti-6Al-4V alloy and AA2519 plates and to investigate their microstructure and mechanical properties with anemphasis on the role of an additional AA1050 interlayer. Explosive welding was ...

Elsevier Sci Ltd2016

Accessible triple-phase boundary length: A performance metric to account for transport pathways in heterogeneous electrochemical materials

Jan Van Herle, Marco Cantoni, Arata Nakajo

The performance of materials for electrochemical energy conversion and storage depends upon the number of electrocatalytic sites available for reaction and their accessibility by the transport of reactants and products. For solid oxide fuel/electrolysis ce ...

Elsevier Science Bv2016

Fracture toughness testing of nanocrystalline alumina and fused quartz using chevron-notched microbeams

Andreas Mortensen, Marco Cantoni, Martin Guillermo Mueller, Václav Pejchal, Goran Zagar

We show that chevron-notched samples offer an attractive approach to the measurement of fracture toughness in micron-scale samples of brittle materials and use the method to characterize quartz and nanocrystalline alumina. Focused ion beam milling is used ...

Elsevier2015

The local strength of microscopic alumina reinforcements

Andreas Mortensen, Marco Cantoni, Andreas Rossoll, Martin Guillermo Mueller, Václav Pejchal, Goran Zagar

We measure, using an adaptation of a method designed for ceramic ball bearings, the local strength of a brittle second phase that serves to reinforce a metal. The method uses focused ion beam milling and a nanoindentation device, and is free of artifacts c ...

Elsevier2015

Negative-pressure-induced enhancement in a freestanding ferroelectric

Nava Setter, Alexander Tagantsev, Marco Cantoni, Brahim Dkhil, Silviu Cosmin Sandu, Jin Wang, Tomas Sluka, Alexander Kvasov, Xiankui Wei

Ferroelectrics are widespread in technology(1), being used in electronics and communications(2), medical diagnostics and industrial automation. However, extension of their operational temperature range and useful properties is desired(3-5). Recent developm ...

Nature Publishing Group2015

Toward Knowledge-Based Grain-Boundary Engineering of Transparent Alumina Combining Advanced TEM and Atomistic Modeling

Paul Bowen, Marco Cantoni, Michael Stuer, Cécile Hébert, Abhishek Tewari, Farhang Nabiei

Transition element dopants (e.g., Y, La) are commonly used as sintering aids in polycrystalline alumina ceramics, which segregate to the grain boundaries and control the grain-boundary mobility. However, due to the extremely thin (

Wiley-Blackwell2015

Filming the formation and fluctuation of skyrmion domains by cryo-Lorentz transmission electron microscopy

Marco Cantoni, Arnaud Magrez, Thierry Giamarchi, Henrik Moodysson Rønnow, Fabrizio Carbone, Giulia Fulvia Mancini, Jonathan White, Edoardo Baldini, Ping Huang, Yoshie Murooka, Rajeswari Jayaraman, Tatiana Latychevskaia

Magnetic skyrmions are promising candidates as information carriers in logic or storage devices thanks to their robustness, guaranteed by the topological protection, and their nanometric size. Currently, little is known about the influence of parameters su ...

National Academy of Sciences2015

Impact of Annealing on the Early Hydration of Tricalcium Silicate

Marco Cantoni, Karen Scrivener, Amélie Bazzoni

It was recently proposed that the induction period observed during the hydration of tricalcium silicate could be explained by the build-up of ions in solution. Due to the importance of defects in this mechanism, this work describes the effect of different ...

Wiley-Blackwell2014

Effect of Magnesium and Zinc Ions on the Hydration Kinetics of C3S

Marco Cantoni, Karen Scrivener, Amélie Bazzoni, Qiao Wang

Impure tricalcium silicate (C3S) in portland cement may contain various foreign ions. These ions can stabilize different polymorphs of C3S at room temperature and may affect its reactivity. In this paper, the effects of magnesium and zinc on the polymorph ...

Wiley-Blackwell2014

Enhanced Quantification for 3D Energy Dispersive Spectrometry: Going Beyond the Limitation of Large Volume of X-Ray Emission

Marco Cantoni, Pierre Burdet, Cécile Hébert

This paper presents a method developed to quantify three-dimensional energy dispersive spectrometry (3D EDS) data with voxel size smaller than the volume from which X-rays are emitted. The influence of the neighboring voxels is corrected by applying recurs ...

Cambridge University Press2014

Semiautomated correlative 3D electron microscopy of in vivo-imaged axons and dendrites

Marco Cantoni, Graham Knott, Bohumil Maco

This protocol describes how in vivo-imaged dendrites and axons in adult mouse brains can subsequently be prepared and imaged with focused ion beam scanning electron microscopy (FIBSESEM). The procedure starts after in vivo imaging with chemical fixation, f ...

Nature Publishing Group2014

Segregation of anion (Cl−) impurities at transparent polycrystalline α-alumina interfaces

Paul Bowen, Marco Cantoni, Cécile Hébert, Abhishek Tewari, Farhang Nabiei

Small amounts of anion impurities (e.g. Cl), which are incorporated during the synthesis of ceramic powders, can affect the properties and microstructure of the final sintered ceramic. The effect of anion impurities is a little studied and poorly understoo ...

Elsevier Sci Ltd2014

Structure analysis of the YBCO layer in Ag/YBCO/metal oxide buffer/Hastelloy composite tape before and after 107 MeV Kr17+ irradiation

Philippe Buffat, Marco Cantoni, Elena Suvorova Buffat

The effects of 107 MeV Kr-84(17+) ion irradiation on YBa2Cu3O7-x-based second-generation coated conductors were investigated using a combination of transmission electron microscopy, diffraction and X-ray energy dispersive spectrometry. Defects 3-5 nm in di ...

Pergamon-Elsevier Science Ltd2014

Advances in 3D focused ion beam tomography

Marco Cantoni

This article summarizes recent technological improvements of focused ion beam tomography. New in-lens (in-column) detectors have a higher sensitivity for low energy electrons. In combination with energy filtering, this leads to better results for phase seg ...

Cambridge University Press2014

Quantitative imaging of flux vortices in the type-II superconductor MgB2 using cryo-Lorentz transmission electron microscopy

Marco Cantoni, Mathieu Julien Gino Cottet, Cécile Hébert, Duncan Thomas Lindsay Alexander, Fabrizio Carbone, Janusz Andrzej Karpinski

Imaging of flux vortices in high quality MgB2 single crystals has been successfully performed in a commercial field-emission gun-based transmission electron microscope. In cryo-Lorentz microscopy, the sample quality and the vortex lattice can be monitored ...

Amer Physical Soc2013

Mechanical and chemical mechanisms in the tribocorrosion of a Stellite type alloy

Stefano Mischler, Marco Cantoni

The tribocorrosion of a Stellite 21 type alloy sliding against alumina in sulfuric acid was investigated in order to identify relevant degradation mechanisms. Tribocorrosion tests were performed using a reciprocating motion pin-on-plate system operating un ...

Elsevier Science Sa2013

Flash Scanning Electron Microscopy

Pascal Fua, Marco Cantoni, Graham Knott, Raphael Sznitman, Aurélien Lucchi

Scanning Electron Microscopy (SEM) is an invaluable tool for biologists and neuroscientists to study brain structure at the intra- cellular level. While able to image tissue samples with up to 5nm isotropic resolution, image acquisition is prohibitively sl ...

2013

Self-assembled quantum dots in a nanowire system for quantum photonics

Marco Cantoni, Yannik Fontana, Anna Fontcuberta i Morral, Martin Heiss, Bernt Ketterer, Sonia Conesa Boj, Eleonora Russo, Nicola Marzari

Quantum dots embedded within nanowires represent one of the most promising technologies for applications in quantum photonics. Whereas the top-down fabrication of such structures remains a technological challenge, their bottom-up fabrication through self-a ...

Nature Publishing Group2013

Correlative in vivo 2 photon and focused ion beam scanning electron microscopy of cortical neurons

Marco Cantoni, Graham Knott, Bohumil Maco

Correlating in vivo imaging of neurons and their synaptic connections with electron microscopy combines dynamic and ultrastructural information. Here we describe a semi-automated technique whereby volumes of brain tissue containing axons and dendrites, pre ...

Public Library of Science2013

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