Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique

Université De Poitiers

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

Patrick Olier

Daniel Nunes

Jean-Christophe Brachet

Florence Lecouturier

Jean-Baptiste Dubois

Nelson Ferreira

Ludovic Thilly

Pierre-Olivier Renault

Stéphane Urvoy

Christine Koralewski - Chabert

A conductive composite wire includes at least one external jacket made of copper, a first tube including a first metallic material (M) contacting and located inside the copper jacket; a second tube including a second metallic material (M) contacting and located inside the first tube; and a fiber including a third metallic material (M) contacting and located inside the second tube. The copper and the first metallic material are immiscible with each other, the first and second metallic materials are immiscible with each other, and the second and third metallic materials are immiscible with each other. A copper-based coaxial microstructure includes a copper sheath containing an array of nanotubes and nanofibers according to a process for manufacturing the microstructure.

Composite conductive cable comprising nanotubes and nanofibers, coaxial microstructure including a copper matrix and said nanotubes and nanofibers, and method for manufacturing said microstructure

This invention relates to a process for manufacturing, shaping, and machining of a part made of a shape memory alloy, comprising a single step in which the said part is fabricated, shaped and machined simultaneously in a single operation by a cutting machining process such as turning. The invention is also related to the part prepared by this process, which is particularly a helical spring with adjacent turns. In particular, this part may be used in actuator or actuator/sensor type devices.

Method for making a part in shape memory alloy and part obtained by said method

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Chatillon, France

Patrick Olier