Snecma

Frederic Leman

Christian Coddet

Sebastien Lukat

Sophie Costil

Etienne Tulie

Pierre Bertrand

Charly Buleon

The method consists in depositing, by alumina spraying, an electrically insulating sublayer on the substrate, then in placing the sensor on the electrically insulating sublayer and finally in depositing, by alumina spraying, a cover layer on the sensor and the electrically insulating sublayer. It further includes, before the cover layer is deposited, a step in which an impermeable and thermally insulating cement is applied locally on wires of the sensor.

Method for fitting and protecting a sensor on a substrate

The invention relates to a method of depositing a coating on a part having its surface made of silicon carbide. The method comprises the following steps: The invention also provides a device for measuring deformation, which device comprises a first alumina coating obtained by atmospheric thermal spraying onto the silicon carbide layer covering the substrate of the part after it has been treated by superposing laser impacts, a free filament strain gauge placed on the coating, and an additional alumina coating obtained by atmospheric thermal spraying onto the strain gauge.

Method of making a deposit on an SiC-covered substrate

A method of making a device for measuring deformation includes a step of depositing a silicon adhesion underlayer on a silicon carbide surface by chemical vapor spraying, and a step of depositing a coating on the silicon adhesion underlayer by atmospheric thermal spraying.

Growing community of inventors

Montrouge, France

Frederic Leman