Concept

Allotropes of iron

Publications associées (116)

A New Reference for the Thermal Equation of State of Iron

The high-pressure, high-temperature behavior of iron was investigated to 140 GPa and 3500 K with in situ synchrotron X-ray diffraction. Iron samples were compressed in diamond-anvil cells and heated up with the double-sided laser-heating system installed a ...

MDPI2020

Highlights of the Science and Life of Peter Varga (1946-2018)

Wolf-Dieter Schneider

Peter Varga has passed on October 27, 2018. His pioneering discoveries of chemical resolution at the atomic scale on surface alloys, atomic resolution of ultrathin alkali halides, nucleation of bcc iron in ultrathin films, and the microscopic structure of ...

SURFACE SCI SOC JAPAN2020

Topological Fermi-arc surface resonances in bcc iron

Oleg Yazyev, Daniel Gosalbez Martinez, Gabriel Albert Autes

The topological classification of matter has been extended to include semimetallic phases characterized by the presence of topologically protected band degeneracies. In Weyl semimetals, the foundational gapless topological phase, chiral degeneracies are is ...

AMER PHYSICAL SOC2020

Magnetic hyperthermia with epsilon-Fe(2)O(3)nanoparticles

Débora Bonvin

Biocompatibility restrictions have limited the use of magnetic nanoparticles for magnetic hyperthermia therapy to iron oxides, namely magnetite (Fe3O4) and maghemite (gamma-Fe2O3). However, there is yet another magnetic iron oxide phase that has not been c ...

ROYAL SOC CHEMISTRY2020

A novel proposition for a citrate-modified photo-Fenton process against bacterial contamination of microalgae cultures

César Pulgarin, Christian Ludwig, Stefanos Giannakis, Adrian Pulgarin, Dominik Refardt

This study reports the first attempt of a citrate-modified photo-Fenton (PF) application at near-neutral pH (7.5–8.5, tap water) to disinfect Escherichia coli (as model bacterium), in Chlorella vulgaris cultures. The conditions are aimed towards bacterial ...

2020

The interplay between deformation mechanisms in austenitic 304 steel during uniaxial and equibiaxial loading

Helena Van Swygenhoven, Efthymios Polatidis, Wei-Neng Hsu

The preferred deformation mechanisms with respect to the load path are studied in a medium stacking fault energy 304 austenitic stainless steel that exhibits both transformation induced plasticity and twinning induced plasticity. In situ neutron diffractio ...

2019

Porous networks based on iron(ii) clathrochelate complexes

Rosario Scopelliti, Kay Severin, Farzaneh Fadaei Tirani, José Luis Bila, Emilie Baudat, Andrea Luca Ramorini, Joffrey Vincent Michel Pijeat

Microporous networks based on boronate ester-capped iron(II) clathrochelate complexes are described. The networks were obtained by covalent cross-linking of tetrabrominated clathrochelate complexes via Suzuki–Miyaura polycross-coupling reactions with dibor ...

2019

Toward an Understanding of Deformation Mechanisms in Metallic Lithium and Sodium from First-Principles

Anirudh Raju Natarajan

Metallic lithium and sodium are actively investigated as anodes for all solid-state batteries. While the mechanical properties of Li and Na remain poorly understood, there is a growing consensus that they play a crucial role in determining the integrity of ...

ACS2019

Laboratory electromagnets: from the beginnings to Electromagnet Laboratories

Jean-François Loude

The mechanical action on iron of the first horseshoe electro-magnets (1824) was obvious. Their use to investigate more subtle magnetic, magneto-optical, atomic or nuclear properties of matter began in 1845 with Faraday. Until the first iron-less Bitter mag ...

2019

Early chemical enrichment of the Milky Way dwarf satellites from high-resolution and NLTE analysis of VMP stars

Pascale Jablonka, Pierre North

We present the NLTE abundances of 10 chemical species in 65 very metal-poor stars in eight dSphs and the Milky Way halo. The classical dSphs Sculptor, Ursa Minor, Sextans, and Fornax reveal a similar plateau at [alpha/Fe] = 0.3 for each of Mg, Ca, and Ti, ...

CAMBRIDGE UNIV PRESS2019

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