| 摘要 |
<p>Method for evaluating the damage to a thermal barrier applied to a component made from a metal substrate, said thermal barrier comprising a sublayer of aluminium and a layer of columnar-structure ceramic material, said sub-layer being positioned between said substrate and said ceramic layer, characterized in that it comprises a first step of calibration comprising the selection of a determined number of calibration components that have undergone various degrees of damage, exposing them for a given length of time to radiation, measuring the temperature obtained at the surface after the given length of time and establishing a curve connecting an increase in temperature to damage, and a second step of measuring the damage to the thermal barrier of said component that involves exposure to said radiation for said length of time, measuring the temperature obtained, and relating the increase in temperature to the calibration curve in order, from said curve, to extract the level of damage.</p> |
