Microstructure and Properties of Plasma Spray Coatings Prepared from Ti-Zr-Ni Quasicrystalline Powders


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This works deals with the deposition of Ti-Zr-Ni icosahedral quasicrystalline powders by low vacuum plasma spray technique and the performances of the resulting coating layers. The microstructure of the coatings, as analyzed by X-ray diffraction and TEM techniques, consisted of nanometer-sized W-Ti50Zr35Ni15 1/1 cubic approximant and TiZrNi Laves phases as well as a low volume fraction of submicrometer-sized ZrO2 phase. The absence of the icosahedral phase in the coating layers was explained by the loss of Ti during plasma spraying. The shift in the composition and the presence of the ZrO2 phase within the coating layers are believed to be responsible for the reduced microhardness and corrosion performances evaluated by electrochemical tests in a Hanks’ Balance Salt Solution at 37oC.



Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim




H. K. Seok et al., "Microstructure and Properties of Plasma Spray Coatings Prepared from Ti-Zr-Ni Quasicrystalline Powders", Materials Science Forum, Vols. 534-536, pp. 89-92, 2007

Online since:

January 2007




[1] Z.M. Stadnik, in: Physical Properties of Qusicrystals (Springer-Verlag, Berlin 1999).

[2] J. B. Suck, M. Schreiber, P. Haussler, in: Quasicrystals: An Introduction to Structure, Physical Properties and Application (Springer-Verlag, Berlin 2002).

[3] J.M. Dubois: Useful Quasicrystals (World Scientific, Singapore 2005).

[4] H. Lefaix, F. Prima, P. Dubot, D. Janickovic, P. Svec, Material Science and Engineering A (2006) in press.

[5] K. Kelton, in: Proceedings of Materials Research Society Symposium on Quasicrystal-Preparation, Properties and Applications, J.M. Dubois, P.A. Thiel, A.P. Tsai, K. Urban (Eds. ), Vol. 553 (1999) p.471.

[6] B.D. Cullity and S.R. Stock, in: Elements of X-Ray Diffraction, 3 rd Edition, (Prentice Hall, Upper Saddle River 2001).

[7] D.J. Sordelet, M.J. Kramer, O. Unal, Journal of Thermal Spray Technology Vol. 4 (1995), p.235.

[8] E. Fleury, S.M. Lee, W.T. Kim and D.H. Kim, Journal of Non-Crystalline Solids Vol. 278 (2000), p.194.

[9] S. Yi, K.B. Kim, E. Fleury, W.T. Kim and D. H. Kim, Materials Letters Vol. 52 (2002), p.75.

[10] M. Metikos-Hukovic, A. Kwokal and J. Piljac, Biomaterials Vol. 24 (2003), p.3765.

[11] D. Cheng, V.L. Tellkamp, C.J. Lavernia and E.J. Lavernia, Annals of Biomedical Engineering Vol. 29 (2001), p.803.

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