A comparison between finite element modeling and various thermographic non-destructive testing techniques for the quantification of the thermal integrity of macro-brush plasma facing components used in a tokamak

• DOI: 10.1063/1.4940728
• Publication Date: 2016-02-05T18:00:23Z
• Authors: Santosh P. Pandya; Shwetang N. Pandya; Yashashri V. Patil; Deepu S. Krishnan; Menaka Murugesan; D. Sharath; K. Premjit Singh; Md. Shoaib Khan; M. Arafat; N. Biju; Samir S. Khirwadkar; Jagannathan Govid...; B. Venkatraman; Krishnan Balasubr...
• Keywords: Brazing; Service life; Thermography

The plasma facing components (PFCs) inside a tokamak are typically exposed to extremely high heat flux of the order MW/m(2). brazing quality between materials (PFMs) and sink will determine structural integrity hence effective service life these PFCs. Suitable non-destructive testing (NDT) techniques for pre-qualification thus essential evaluate their at various stages life. Macro-brush type mockups prototype PFCs with graphite as PFM have been inspected using different active Infrared (IR)-thermographic NDT techniques. results obtained from compared discussed. was quantified by establishing comparison experimental Finite Element Analysis (FEA). percentage contact substrate varied in FEA. FEA when experiments shows that tiles amounts ranging 10% 80%.