Concept

Fabrication des sabres japonais

Publications associées (7)

A Mixed-Phase SiOx Hole Selective Junction Compatible With High Temperatures Used in Industrial Solar Cell Manufacturing

Christophe Ballif, Franz-Josef Haug, Quentin Thomas Jeangros, Xavier Niquille, Andrea Ingenito, Matthieu Despeisse, Gizem Nogay, Philippe Wyss, Mario Joe Lehmann, Josua Andreas Stückelberger

We present a p-type passivating rear contact that complies with integration into standard solar cell manufacturing with phosphorus-diffused front side. Our contact structure consists of a thin SiOx tunneling layer grown by wet chemistry and a stack of laye ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

On the chevron morphology of surface martensite

Roland Logé, Cyril Cayron, Annick Pauline Baur

It is established that the annealing twin boundaries of austenite act as nucleation sites for the martensitic transformation. In the present study, we observe that in surface martensite the transformation only takes place for twin boundaries that are appro ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Influence of hot rolling and high speed hydrostatic extrusion on the microstructure and mechanical properties of an ODS RAF steel

Nadine Baluc, Zbigniew Oksiuta

An argon gas atomized, pre-alloyed Fe-14Cr-2W-0.3Ti (wt.%) reduced activation ferritic (RAF) steel powder was mechanically alloyed with 0.3wt.% Y2O3 nano-particles in an attritor ball mill and consolidated by hot isostatic pressing at 1150 °C under a press ...

Elsevier2011

Numerical life prediction of mechanical fatigue for hot forging tools

Roland Logé

In the forging industry, tools represent an important part in term of production and costs. Enhancing their life cycle is then a challenging issue. Several mechanical and thermal mechanisms are responsible for hot forging tools damage such as wear, thermal ...

2009

Utilisation de la spectroscopie mécanique dans l'optimisation des traitements thermiques d'aciers au carbone

Ronan Martin

This work is motivated by the industrial need to improve the thermal treatments of carbon steels used for the production of files. It aims at clearly defining the role that carbon plays in hardness and wear resistance of files. Three steel grades with diff ...

EPFL2009

Microstructure of precipitates and magnetic domain structure in an annealed Co38Ni33Al29 shape memory alloy

Barbora Bártová

The microstructure of a Co38Ni33Al29 ferromagnetic shape memory alloy was determined by conventional transmission electron microscopy (TEM), electron diffraction studies together with advanced microscopy techniques and in situ Lorentz microscopy. Rod-like ...

2008

Modélisation des transformations de phase à l'état solide dans les aciers et application au traitement thermique par induction

Alain Jacot

In the first part of this work a comprehensive model of the continuous hardening of 3D-axisymmetric steel components by induction heating has been developed. In the model, the Maxwell and heat flow equations are solved using a mixed numerical formulation : ...

EPFL1997

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