A study on suitability of functionally graded material for spacer application

Author

Ganga, S. ; Dwarakanath, K. ; Natarajan, A.A. ; VijayaRaghavan, M.G. ; Ohri, Lokesh ; Vaikundh, R.

Author_Institution

Central Power Res. Inst., Bangalore, India

Volume

2

fYear

2004

Firstpage

521

Abstract

The electric field distribution for a functionally graded material (FGM) of maximum three layers has been studied by employing finite element method. Five different permittivities have been considered. From the present study it is observed that the electric field enhancement at triple junction is reduced in FGM as compared to a single layer spacer. The present study indicates that the stress concentration is not localized to triple junction only. In a multi layer spacer the shape of the particle and location plays a dominant role in the enhancement of overall stress. A detailed analysis shows that the performance of FGM appears to be better than single layer spacer.

Keywords

finite element analysis; functionally graded materials; multilayers; permittivity; stress effects; FGM; electric field distribution; electric field enhancement; finite element method; functionally graded material; multilayer spacer; permittivity; single layer spacer; spacer application; stress concentration; triple junction; Ceramics; Dielectrics; Electrodes; Gas insulation; Geographic Information Systems; Numerical models; Permittivity; Solid modeling; Thermal resistance; Thermal stresses;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on

Print_ISBN

0-7803-8348-6

Type

conf

DOI

10.1109/ICSD.2004.1350483

Filename

1350483