A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Estimation of residual stress in air plasma sprayed MWCNT-reinforced 8YSZ–alumina composite coating
https://orcid.org/http://orcid.org/0000-0002-6278-0001
Thermal barrier coating (TBC) with Al2O3 and 8YSZ as topcoat constituents has been developed. The commercially available 8YSZ (80% wt.), Al2O3 (17 and 19% wt.) and multiwall carbon nanotubes (MWCNT) (3% and 1% wt.) were plasma sprayed to produce composite coatings. A stress relaxation technique using a slow-speed diamond cutter has been used to relax the strain and determine the through-thickness residual stress in the coatings. A 3D finite element model was developed, the model was experimentally validated, and the model was used to establish a relationship between applied stress and relaxed strain. The addition of alumina increased the compressive residual stress on the surface of the coating by 42%, the addition of 1% MWCNT had a negligible effect on the residual stress on the coating surface. The further addition of MWCNT (3% wt.) resulted in tensile residual stress in the coating as a result of MWCNT agglomeration.
Estimation of residual stress in air plasma sprayed MWCNT-reinforced 8YSZ–alumina composite coating
https://orcid.org/http://orcid.org/0000-0002-6278-0001
Thermal barrier coating (TBC) with Al2O3 and 8YSZ as topcoat constituents has been developed. The commercially available 8YSZ (80% wt.), Al2O3 (17 and 19% wt.) and multiwall carbon nanotubes (MWCNT) (3% and 1% wt.) were plasma sprayed to produce composite coatings. A stress relaxation technique using a slow-speed diamond cutter has been used to relax the strain and determine the through-thickness residual stress in the coatings. A 3D finite element model was developed, the model was experimentally validated, and the model was used to establish a relationship between applied stress and relaxed strain. The addition of alumina increased the compressive residual stress on the surface of the coating by 42%, the addition of 1% MWCNT had a negligible effect on the residual stress on the coating surface. The further addition of MWCNT (3% wt.) resulted in tensile residual stress in the coating as a result of MWCNT agglomeration.
Estimation of residual stress in air plasma sprayed MWCNT-reinforced 8YSZ–alumina composite coating
https://orcid.org/http://orcid.org/0000-0002-6278-0001
Thermal barrier coating (TBC) with Al2O3 and 8YSZ as topcoat constituents has been developed. The commercially available 8YSZ (80% wt.), Al2O3 (17 and 19% wt.) and multiwall carbon nanotubes (MWCNT) (3% and 1% wt.) were plasma sprayed to produce composite coatings. A stress relaxation technique using a slow-speed diamond cutter has been used to relax the strain and determine the through-thickness residual stress in the coatings. A 3D finite element model was developed, the model was experimentally validated, and the model was used to establish a relationship between applied stress and relaxed strain. The addition of alumina increased the compressive residual stress on the surface of the coating by 42%, the addition of 1% MWCNT had a negligible effect on the residual stress on the coating surface. The further addition of MWCNT (3% wt.) resulted in tensile residual stress in the coating as a result of MWCNT agglomeration.
Estimation of residual stress in air plasma sprayed MWCNT-reinforced 8YSZ–alumina composite coating
Archiv.Civ.Mech.Eng
Thakare, J. G. (author) / Mulik, R. S. (author) / Mahapatra, M. M. (author)
2020-09-02
Article (Journal)
Electronic Resource
English
Estimation of residual stress in air plasma sprayed MWCNT-reinforced 8YSZ–alumina composite coating
| Springer Verlag | 2020
| British Library Online Contents | 2013
X-Ray Residual Stress Measurement of Plasma Sprayed Alumina Film
| British Library Online Contents | 1993
| British Library Online Contents | 2014
Residual Stress Measurement of Plasma Sprayed Coating Layers in ZrO~2
| British Library Online Contents | 2007