Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Université Pierre Et Marie Curie (Paris 6)

Université Pierre Et Marie Curie

Malek Benmansour

Jean-Paul Garandet

Sébastien Dubois

David Pelletier

Daniel Morvan

Anis Jouini

Rafik Benrabbah

Younès Belrhiti

Sarah Darwiche

Coralie Lorfeuvre

Thibaut Desrues

Jean-Patrice Rakotoniaina

A device for characterising at least one liquid material includes an analysis head and a rotating mechanical mixer. The mixer includes a central part having an internal cavity which forms an analysis chamber, a first end connected to the analysis head, and a plurality of stirring blades which are connected to a second end that is hollow so as to ensure fluid communication between the internal cavity and the liquid bath. The mechanical stirring blades are intended to be totally submerged, the central part comprises one or more openings intended to be partially submerged, and each mechanical stirring blade comprises at least one stirring flange oriented at a non-zero angle of orientation.

Device for characterising a liquid material

A method for manufacturing a silicon ingot having uniform phosphorus concentration. The method includes at least the steps of: (i) providing a quasi-uniform molten silicon bath containing at least phosphorus; and (ii) proceeding to the directional solidification of the silicon, wherein a speed (VI) for solidifying the silicon and a rate (JLV) of evaporation of the phosphorus at the liquid/vapor interface of the bath are controlled such that, at each moment of the directional solidification, the following equation is verified: VI=k'/(2&#x2212;k) (E), wherein k&#x2032; is the phosphorus transfer coefficient, and k is the distribution coefficient of the phosphorus in the silicon. Also relates to a silicon ingot having uniform phosphorus concentration across a height of at least 20 cm.

Method for manufacturing a silicon ingot having uniform phosphorus concentration

A device for analyzing at least one oxidizable molten metal using a LIBS technique, including: a LIBS analyzer; a mechanical rotary mechanism stirring a liquid bath of the at least one oxidizable molten metal, and including a central section, to be positioned above the liquid bath of the at least one oxidizable molten metal, including an internal cavity forming an analysis chamber, the central section including a first end connected to the LIBS analyzer, and a plurality of mechanical stirring paddles to be partially submerged in the liquid bath of the at least one oxidizable molten metal and that are connected to a second end of the central section opposite the first end of the central section, the LIBS analyzer configured to allow the surface of the at least one oxidizable molten metal located in the portion plumb with the internal cavity of the central portion to be analyzed.

Device for analysing an oxidisable molten metal using a libs technique

Growing community of inventors

La Motte-Servolex, France

Malek Benmansour