Patent ID: 7144602

Claim:
A process for obtaining a flexible/adaptive thermal barrier, the thermal barrier comprising a ceramic layer with a thickness of at least 80 μm, deposited on a substrate covered with a sublayer, the ceramic layer being deposited by thermal spraying using a plasma arc torch, an operation of the torch being defined by a power of the torch, a material flow rate, a spraying distance from the torch to a component to be coated and a speed of movement of the torch relative to the component, the process comprising: depositing, directly on the sublayer and in just a single pass, the ceramic layer while maintaining the spraying distance between 20 mm and 90 mm, the speed of movement of the torch between 2 mm/s and 10 min/s, the material flow rate between 40 g/min and 100 g/min and an arc current of the torch between 500 A and 800 A, so as to obtain, after cooling, at least two approximately vertical cracks per millimeter that pass right through the ceramic layer.