METHOD FOR PREPARING A METALLIC PART IN SUCH A WAY AS TO IMPROVE THE MEASUREMENT OF THE TEMPERATURE OF SAME BY OPTICAL PYROMETRY DURING PRESSURISATION OF SAME UNDER UNIAXIAL DEFORMATION CONDITIONS

摘要

A method for preparing a metal part pressurised under isentropic, shock-type or compression-type, uniaxial deformation conditions, so as to measure the temperature of same by optical pyrometry. The method includes forming an emissive coating on a face of the metal part, having a thickness of 250 to 550 nm, and fixing an anvil-shaped window on the emissive coating. The emissive coating includes a first and a second layer of amorphous carbon, the first layer being inserted between the face of the metal part and the second layer, and having a carbon hybridisation rate sp³ greater than the carbon hybridisation rate sp³ of the second layer. A method for measuring, by optical pyrometry, the temperature of a metal part pressurised under isentropic, shock-type or compression-type, uniaxial deformation conditions.