Nondestructive evaluation of the interface between ceramic coating and stainless steel by electromagnetic method

7th International Conference on Advanced Concepts in Mechanical Engineering

Savin, A.^1 ; Steigmann, R.^1 ; Iftimie, N.^1 ; Novy, F.^2 ; Vizureanu, P.^3 ; Craus, M.L.^1,4 ; Fintova, S.^5,6

National Institute of Research and Development for Technical Physics, Iasi, Romania^1

University of ilina, ilina, Slovakia^2

Technical University Gh.Asachi, Iasi, Romania^3

Joint Institute for Nuclear Research, Dubna, Russia^4

Institute of Physics of Materials, AS CR V.v.i., Brno, Czech Republic^5

Materials Research Centre, Brno University of Technology, Brno, Czech Republic^6

关键词: Chemical inertness;    Complementary methods;    Electromagnetic methods;    Low thermal conductivity;    Non destructive evaluation;    Thermal barrier coating (TBC);    Thermal expansion coefficients;    Yield Improvement;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012030/pdf
DOI  :  10.1088/1757-899X/147/1/012030

来源: IOP

【 摘 要 】

Protecting coatings as thermal barrier coating (TBC) are used for yield improvement of equipment working at high temperature. Zirconia doped with yttria ceramics are considered a good TBC material due of its low thermal conductivity, refractory, chemical inertness and compatible thermal expansion coefficient with metallic support. The paper proposes the use of an electromagnetic method for evaluation of coatings on stainless steel using a sensor with metamaterial lens and comparison of the results with those obtained by complementary methods.