Commissariat a L'energie Atomique

Turbomeca

L'etat Francais, Represente Par Le Delegue General Pour L'armement

Comet Corporation

Michel Brun

Guy Farges

Pierre Monge-Cadet

Jacques Ernoult

Yves Pauleau

Serge Paidassi

Observation window, especially for checking the temperature of objects using infrared thermography, including a parallel-faced transparent insert made of a single crystal suitable for radiation to pass through without being substantially modified and/or attenuated, which radiation, whose wavelength may range from the visible to the relatively far infrared emanates from an object whose temperature is to be monitored, housed in a screened cabinet provided with a door or panel against which the window is arranged, wherein the insert is fitted into a support which surrounds it at its periphery and is immobilized with respect to the support, this support being applied in a sealed manner against an aperture made in the door and then locked in position by means which are only accessible from inside the cabinet, the support comprising an external protective cover capable of pivoting about a pin connecting it to this support, so as to reveal the insert and allow observation through it of the object to be monitored by an infrared camera.

Observation window for checking the temperature of objects

The present invention relates to a multilayer material useful as an anti-erosion and anti-abrasion coating, and to a process for producing the multilayer material at low temperatures. The multilayer material comprises a substrate covered with at least one metallic tungsten ductile layer and at least one hard layer of a solid solution of an additional element chosen from carbon or nitrogen or a mixture of carbon and nitrogen in tungsten or a tungsten alloy, the two types of layers ar alternating. The multilayer material is particularly useful as a coating for parts used in aeronautics.

Multilayer material, anti-erosion and anti-abrasion coating

Growing community of inventors

Bizanos, France

Michel Brun