Centre National De La Recherche Scientifique

Paris Sciences Et Lettres

Biotech Dental

Universite Dé Lorraine

Paris Sciences Et Lettres-quartier Latin

Arts

Institut National Des Sciences Appliquees De Rennes (insa De Rennes)

Ecole Nationale D Ingenieurs De Metz (enim)

National De La Recherche Scientifique (crns)

Ecole Nationale Superieure De Chimie De Paris

Frédéric Prima

Stéphanie Delannoy

Daniel Morvan

Thierry Gloriant

Pascal Laheurte

Sophie Nowak

Wafa Elmay

André Eberhardt

Etienne Patoor

Olivier Lesage

Frédéric Rousseau

Jonathan Cramer

The invention relates to a process for selectively and continuously extracting a series of desired species from a matrix, comprising the steps of:&#x2014;injecting a plasma () in an extraction chamber by means of a plasma torch,&#x2014;continuously monitoring () the excited elements extracted from the matrix and contained in the plasma by optical emission spectroscopy, and for each species of the series,&#x2014;setting a distance () between the support and the plasma torch, and the composition of the injected plasma as a function of the monitored excited elements so that only one desired species of the series of species is being extracted from the matrix under molecular form, and&#x2014;providing () a plate in the extraction chamber, exterior to the plasma, causing collection of molecules comprising said desired species by deposition onto the surface of the plate.

Process and system for plasma-induced selective extraction and recovery of species from a matrix

The invention relates to the use of a ternary Titanium-Zirconium-Oxygen (Ti&#x2014;Zr&#x2014;O) alloy, characterized in that it comprises from 83% to 95.15 mass % of titanium, from 4.5% to 15 mass % of zirconium and from 0.35% to 2 mass % of oxygen, with said alloy being capable of forming a single-phase material consisting of a stable and homogeneous &#x3b1; solid solution of Hexagonal Close Packed (HCP) structure at room temperature in the medical, transport or energy fields.

Ternary Ti&#x2014;Zr&#x2014;O alloys, methods for producing same and associated utilizations thereof

The invention relates to a ternary Titanium-Zirconium-Oxygen (Ti&#x2014;Zr&#x2014;O) alloy, characterized in that it comprises from 83% to 95.15 mass % of titanium, from 4.5% to 15 mass % of zirconium and from 0.35% to 2 mass % of oxygen, with said alloy being capable of forming a single-phase material consisting of a stable and homogeneous a solid solution of Hexagonal Close Packed (HCP) structure at room temperature. The invention further relates to a method for producing such alloy as well as preferred applications and utilizations thereof.

A monolithic titanium alloy having, in a temperature range (&#x394;T) and at atmospheric pressure: an outer peripheral zone of a microstructure having a modulus of elasticity (E) and possessing superelastic properties in the range (&#x394;T), and a core of a microstructure having a modulus of elasticity (E), and possessing elastic properties in the range (&#x394;T); the microstructures and being different from one another, and the modulus of elasticity (E) being lower than said modulus of elasticity (E).

Metallic material with an elasticity gradient

According to a thermomechanical treatment process for a titanium alloy including between 23 and 27% niobium in atomic proportion, between 0 and 10% zirconium, and between 0 and 1% oxygen, nitrogen and/or silicon, the following steps are performed:

Method for the thermomechanical treatment of a titanium alloy, and resulting alloy and prosthesis

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Rambouillet, France

Frédéric Prima