Development of High Temperature Multi-Layer Laser Flash Artefacts

Abstract Delamination of the interlayers multi-layer systems can cause a degradation in functionality, stability and life span that system. This is even more pertinent for at high temperature. Laser flash analysis (LFA) has long been used thermophysical properties measurements temperatures. Multi-layer reference artefacts, with without, debonded regions are required validating thermal characterisation such using LFA. Although some high-temperature bulk candidate materials were developed studied, e.g. European Metrology Research Programme (EMRP) funded Joint Project (JRP) ENG08 Metrofission, they not able to meet requirements In Innovation (EMPIR) JRP 17IND11 Hi-TRACE project, National Physical Laboratory developing including both fully bonded partially de-bonded temperatures from room temperature above 1000 °C paper details methodology production, measurement validation isotropic graphite hafnium based with, partial debonding. Reproducibility, sensitive parameters concerning response artefacts will be discussed, recommendation on usage criteria as LFA artefacts.