Mechanical properties and the microstructure of the plasma-sprayed ZrO2Y2O3 / ZrO2Y2O3CoNiCrAlY / CoNiCrAlY coating
Abstract
ZrO2 stabilized with Y2O3 has superior and excellent physical properties compared to other modern ceramic materials. Due to its high biocompatibility, ZrO2 ceramics in the ZrO2 - Y2O3 system is widely used as a biomaterial in orthopedic surgery. ZrO2 - Y2O3 ceramics is widely applied in the production of the head of the hip, knee prosthesis, temporary holders, and more. ZrO2 is used for a total hip replacement (THR), for an artificial knee joint as well as for the application and development of other medical devices. In order to use ZrO2Y2O3 ceramics (YSZ) in biomedical substrates, it is necessary to deposit coating layers without defects. For the purpose of the deposition of a ZrO28wt.%Y2O3 ceramic coating with the best structural properties, the ZrO2Y2O3 / ZrO2Y2O3CoNiCrAlY / CoNiCrAlY coating system was tested. For financial reasons, the deposition was performed on a steel substrate by applying a CoNiCrAlY bond coating, which does not affect the structure and functionality of the ZrO2Y2O3 ceramic layer. The structure of the layers was tested by the method of light microscopy, and the surface of the upper ZrO28wt.%Y2O3 ceramic coating was tested by the method of scanning electron microscopy (SEM). The obtained characteristics showed that the porosity content in the ceramic layer was not high and that micropores were uniformly distributed. The mechanical properties of the layers were assessed by testing microhardness using the method HV0.3 and tensile bond strength using tensile testing. The values of the microhardness of the ZrO28wt.%Y2O3 coating were satisfactory as well as the tensile bond strength of the coating system.
References
Cheruvu, N.S., Chan, K.S., & Leverant, G.R. 2000. Cyclic Oxidation Behavior of Aluminide, Platinum Modified Aluminide, and MCrAlY Coatings on GTD-111. Journal of Engineering for Gas Turbines and Power, 122(1), p.50. doi:10.1115/1.483174
Dion, I., Bordenave, L., Lefebvre, F., Bareille, R., Baquey, C., Monties, J.R., & Havlik, P. 1994. Physico-chemistry and cytotoxicity of ceramics. Journal of Materials Science, 5, pp.18-24.
Heimann, R.B. 2006. Thermal spraying of biomaterials. Surface and Coatings Technology, 201, pp.2012-2019.
Hong, L., Bing, S., Aaron, F., & Timothy, C. 2004. Applications of plasma coating in artificial joints: An overview. Vacuum, 73, pp.317-326.
ISO standard 13356 2008. revision of a previous version of 1997.
Khor, K.A., Fu, L., Lim, V.J.P., & Cheang, P. 2000. The effects of ZrO2 on the phase compositions of plasma sprayed HA: YSZ composite coatings. Materials Science and Engineering, 276, pp.160-166.
Lang, H., & Mertens, T. 1990. The use of cultures of human osteoblastlike cells as an in vitro test system for dental materials. Journal of oral and maxillofacial surgery , 48(6), pp.606-11. pmid:2341941
Magdi, M.F., & Kobayashi, A. 2007. Microstructure and Mechanical Properties of HA/ZrO2 Coatings by Gas Tunnel Plasma Spraying. Transaction of JWRI, 36(1), pp.47-51.
Material Product Data Sheet, AMDRY 9951, Cobalt Nickel Chromium Aluminum Yttrium (CoNiCrAlY) Thermal Spray Powders, DSMTS - 0092.1 2011. Sulzer Metco.
Material Product Data Sheet, Metco 204F, 8% Yttria Stabilized Zirconia Agglomerated and HOSP™ Thermal Spray Powders, DSMTS-0001. 2 2012. Sulzer Metco.
Mobarra, R., Jafari, A.H., & Karaminezhaad, M. 2006. Hot corrosion behavior of MCrAlY coatings on IN738LC. Surface and Coatings Technology, 201(6), pp.2202-2207.
Mrdak, M. 2013. Characterization of vacuum plasma sprayed cobalt-nickel-chromium-aluminum-yttrium coating. Vojnotehnički glasnik / Military Technical Courier, 61(4), pp.26-47, doi:10.5937/vojtehg61-2495.
Мrdak, М. 2015. Characteristics of APS and VPS plasma spray processes. Vojnotehnički glasnik / Military Technical Courier, 63(3), pp.137-159, doi:10.5937/vojtehg63-7064.
Mrdak, M. 2016. Properties of the ZrO2MgO/MgZrO3NiCr/NiCr triple-layer thermal barrier coating deposited by the atmospheric plasma spray process. Vojnotehnički glasnik / Military Technical Courier, 64(2), pp.411-430, doi:10.5937/vojtehg64-9612 .
Mrdak, M., Rakin, M., Medjo, B., & Bajić, N. 2015. Experimental Study of Insulating Properties and Behaviour of Thermal Barrier Coating Systems in Thermo Cyclic Conditions. Materials & Design, 67, pp.337-343.
Mrdak, M., Vencl, A., Nedeljkovic, B., & Stanković, M. 2013. Influence of plasma spraying parameters on properties of the thermal barrier coatings. Materials Science and Technology, 29(5), pp.559-567.
Piconi, C., & Maccauro, G. 1999. Zirconia as a ceramic biomaterial. Biomaterials, 20, pp.1-25.
Poza, P., & Grant, P.S. 2006. Microstructure evolution of vacuum plasma sprayed CoNiCrAlY coatings after heat treatment and isothermal oxidation. Surface and Coatings Technology, 201(6), pp.2887-2896.
Turbojet Engine: Standard Practices Manual (PN 582005) 2002. East Hartford, USA: Pratt & Whitney.
Wang, H. 2008. Materials and applications of thermal spray. National Defense Industry Press.
Weidian, S. 2006. Thermal Spray Technolog.CHWA Technology Company.
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