Pulse Electric Fields for EPD of Thermal Barrier Coatings

Heather McCrabb; Joseph Kell; Binod Kumar

doi:10.4028/www.scientific.net/KEM.507.21

Paper Titles

Foreword, Conference Chairs, International Organising Committee, Acknowledgements and Photograph of Participants

Development of Diffusion Barrier Coatings for Mitigation of Fuel-Cladding Chemical Interactions
p.3

Hybrid Electrophoretic Deposition with Anodization Process for Superhydrophilic Surfaces to Enhance Critical Heat Flux
p.9

Textured Ti₃SiC₂ by EPD in a Strong Magnetic Field
p.15

Pulse Electric Fields for EPD of Thermal Barrier Coatings
p.21

Triethanolamine as an Additive in the Electrophoretic Deposition of TiTe₃O₈ Thick Films
p.27

Electrophoretic Deposition onto Ionic Liquid Layers
p.35

AC Electrophoresis, a New Technique for Deposition of Ceramic Nanoparticles; Introduction, Application and Mechanism
p.41

Direct Numerical Simulations of Electrophoretic Deposition of Charged Colloidal Suspensions
p.47

HomeKey Engineering MaterialsKey Engineering Materials Vol. 507Pulse Electric Fields for EPD of Thermal Barrier...

Pulse Electric Fields for EPD of Thermal Barrier Coatings

Abstract:

Conventional electrophoretic deposition is being combined with pulse electric fields to deposit yttria stabilized zirconia from ethanol based suspensions onto bondcoated turbine alloys for thermal barrier coatings. The addition of the pulse electric fields to the electrophoretic process has demonstrated the capability to decrease the coating roughness, minimize hydrolysis, and decrease coating edge effects commonly encountered in electrokinetic and electrochemical deposition processes. Subsequent to the electrophoretic deposition process the green body coatings were subjected to a combined binder burnout and sintering process for further coating densification. The coatings have been qualified in terms of surface roughness as well as microstructure and experiments have been performed to show that the pulse EPD process can deposit TBC materials onto turbine components.

You might also be interested in these eBooks

Electrophoretic Deposition: Fundamentals and Applications IV

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 507)

Pages:

21-25

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.507.21

Citation:

Cite this paper

Online since:

March 2012

Authors:

Heather McCrabb, Joseph Kell, Binod Kumar

Keywords:

Colloidal, Electrokinetics, Electrophoretic Deposition (EPD), Gas Turbine, Thermal Barrier Coating (TBC), YSZ

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] J.D. Vyas, K.L. Choy, Mat. Sc. Eng., A277, 206-212 (2000).

Google Scholar

[2] H. Wang, R.B. Dinwiddie, Advanced Engineering Materials, 3, 7 (2001).

Google Scholar

[3] E. Tzimas, H. Mullejans, S.D. Peteves, J. Bressers, W. Stamm, Acta Materialia 48, (2000).

Google Scholar

[4] D.D. Hass, P.A. Parrish, H.N.G. Wadley, J. Vac. Sci. Technol. 16, 6, 3396-3401 (1998).

Google Scholar

[5] P. Hancock, M. Malik, Materials for Advanced Power Engineering, Part I, edited by D. Coutsouradis et al. (Kluwer Academic, Dordrecht, The Netherlands), 685-704 (1994).

Google Scholar

[6] J.W. Kell, H.A. McCrabb, B. Kumar Thermal Barrier Coatings Deposited by the Faradayic EPD Process, Advanced Ceramic Coatings and Interfaces IV (eds D. Zhu, H. -T. Lin, D. Singh and J. Salem), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10. 1002/9780470584293. ch7, 67-74 (2010).

DOI: 10.1002/9780470584293.ch7

Google Scholar

[7] J.W. Kell, H.A. McCrabb, B. Kumar, FARADAYIC SM Development of Electrically Mediated Electrophoretic Deposition for Thermal Barrier Coatings, poster at the 2011 University Turbine Systems Research Workshop, October 25-27, 2011, Columbus, Ohio, USA, http: /www. netl. doe. gov/publications/proceedings/11/utsr/pdf/posters/Kell. pdf Figure 6. Picture of IN100 turbine blade coated by the pulse EPD Process. TGO Figure 5. SEM micrograph of a YSZ TBC deposited using the pulse EPD Process.

DOI: 10.1002/9780470584293.ch7

Google Scholar