Publications de Robin Schäublin

Three-dimensional scanning transmission electron microscopy of dislocation loops in tungsten

Cécile Hébert, Robin Schäublin, Soheil Hasanzadeh

Scanning transmission electron microscopy (STEM) imaging using diffraction contrast is a powerful technique to assess crystal defects. In this work it is used to assess the spatial distribution of radiation induced defect in tungsten. In effect, its irradi ...

PERGAMON-ELSEVIER SCIENCE LTD2018

On the origin of primary 1/2 a(0) and a(0) loops in irradiated Fe(Cr) alloys

Robin Schäublin, Anna Prokhodtseva

The radiation-induced primary dislocation loops in thin foils of ultra-high purity Fe and Fe(Cr) model alloys were investigated using ion irradiation in situ in a TEM. In the '111 mechanism' the induced nanometric loops of type a(0) stem from mutual ...

Pergamon-Elsevier Science Ltd2017

Tilt-less 3-D electron imaging and reconstruction of complex curvilinear structures

Pascal Fua, Cécile Hébert, Quentin Thomas Jeangros, Duncan Thomas Lindsay Alexander, Emad Oveisi, Robin Schäublin, Guillaume Lucas, Antoine Letouzey

The ability to obtain three-dimensional (3-D) information about morphologies of nanostructures elucidates many interesting properties of materials in both physical and biological sciences. Here we demonstrate a novel method in scanning transmission electro ...

Nature Research2017

Impact of He and Cr on defect accumulation in ion-irradiated ultrahigh-purity Fe(Cr) alloys

Robin Schäublin, Amuthan Ramar, Anna Prokhodtseva

The effect of He on the primary damage induced by irradiation in ultrahigh-purity (UHP) Fe and Fe(Cr) alloys was investigated by transmission electron microscopy (TEM). Materials were irradiated at room temperature in situ by TEM in a microscope coupled to ...

Pergamon-Elsevier Science Ltd2013

On the formation of stacking fault tetrahedra in irradiated austenitic stainless steels – A literature review

Robin Schäublin, Raluca Schibli

Irradiated austenitic stainless steels, because of their low stacking fault energy and high shear modulus, should exhibit a high ratio of stacking fault tetrahedra relative to the overall population of radiation induced nanometric defects. Experimental obs ...

Elsevier Science Bv2013

Microstructure and mechanical properties of a W-2wt.%Y2O3 composite produced by sintering and hot forging

Nadine Baluc, Philippe Spätig, Robin Schäublin

A W-2Y(2)O(3) composite has been developed by powder metallurgy methods in collaboration with the Plansee Company (Austria). The microstructure of the composite was analyzed using transmission electron microscopy and electron backscatter diffraction in sca ...

2013

W-2 wt.%Y2O3 composite: Microstructure and mechanical properties

Nadine Baluc, Philippe Spätig, Robin Schäublin

A W-2Y(2)O(3) composite is produced by powder metallurgy, including the pressing of the mixed elemental powders, their sintering and hot forging. The microstructure of the obtained composite is investigated using light microscopy, scanning electron microsc ...

2012

Processing and characterization of a W–2Y material for fusion power reactors

Nadine Baluc, Robin Schäublin, Lyubomira Veleva

A W-2Y material has been produced by powder metallurgy techniques including mechanical alloying of W and Y elemental powders in an argon atmosphere, followed by hot isostatic pressing of the milled powder at 1320 degrees C under a pressure of 200 MPa for 2 ...

Elsevier2011

Review on the EFDA programme on tungsten materials technology and science

Nadine Baluc, Robin Schäublin, Lyubomira Veleva, Daniela Rupp

All the recent DEMO design studies for helium cooled divertors utilize tungsten materials and alloys, mainly due to their high temperature strength, good thermal conductivity, low erosion, and comparably low activation under neutron irradiation. The long-t ...

Elsevier2011

From materials development to their test in IFMIF: an overview

Nadine Baluc, Minh Quang Tran, Robin Schäublin, Philippe Spätig, Zbigniew Oksiuta, Lyubomira Veleva, Nazar Ilchuk

R&D activities on fusion reactor materials in Switzerland focus on (1) the development of advanced metallic materials for structural applications in plasma-facing (first wall, divertor) and breeding blanket components of the future fusion power reactors, i ...

IOP Publishing Ltd2011