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2019, vol. 60, iss. 1, pp. 44-49
Characterization of plasma spray bioinert coating Al2O328wt.%MgO
aIMTEL Institute, Belgrade, Serbia
bUniversity of Belgrade, Faculty of Agriculture, Serbia
cUniversity of Belgrade, Faculty of Technology and Metallurgy, Serbia
dChemical Power Sources Institute - IHIS, Belgrade, Serbia
Micromechanical criteria of damage and fracture (MESTD - 174004)
Development of covering and core production technology based on local raw materials for manufacturing of special coated electrodes designed for steel arc welding (MESTD - 34016)

This paper presents the results of testing mechanical and structural characteristics of plasma spray coating Al2O328wt.%MgO. Metal oxide MgO in a complex oxide Al2O328wt.%MgO modifies the properties of Al2O3 ceramics by forming spinel MgAl2O4 with excellent biomedical characteristics. The coating layers were deposited by atmospheric plasma spraying process (APS) on steel substrates of stainless steel X15Cr13 (EN 1.4024). The aim of this study was to examine the effect of the strength of the plasma current (700A, 800A and 900A) on the mechanical properties of the Al2O3MgO coating, pore content and microstructure of the layers. Testing microhardness of the layers using the HV0.3 method, the bond strength using the tensile method and microstructure using optical microscopy (OM) and scanning electron microscopy (SEM) have confirmed that, by controlling the plasma current, layers of the coating system Al2O328wt.%MgO can be deposited with good mechanical and microstructural characteristics suitable for use in manufacture of implants.
*** GTV Spray powder catalogue: GTV Spray powders comply with DIN EN 1274. Materials number 40.29.1 based on alumina III
*** (2008) ASTM C633-1(2008) standard test method for adhesion or cohesion strength of thermal spray coatings. Reapproved
Borges, G.A., Caldas, D., Taskonak, B., Yan, J., Sobrinho, L.C., de Oliveira, W.J. (2009) Fracture Loads of All-Ceramic Crowns under Wet and Dry Fatigue Conditions. Journal of Prosthodontics, 18(8): 649-655
Hallstedt, B. (1992) Thermodynamic Assessment of the System MgO-Al2O3. Journal of the American Ceramic Society, 75(6): 1497-1507
Kokubo, T. (2008) Bioceramics and their clinical applications. Woodhead publishing limited, ISBN: 9781845694227
Manicone, P.F., Rossi, I.P., Raffaelli, L. (2007) An overview of zirconia ceramics: Basic properties and clinical applications. Journal of Dentistry, 35(11): 819-826
Mrdak, M., Lačnjevac, Č., Rakin, M. (2018) Mehaničke i strukturne karakteristike slojeva prevlake Nb deponovane u vakuumu. Zaštita materijala, vol. 59, br. 2, str. 167-172
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: 337-343
Mrdak, M. (2017) Karakterizacija plazma sprej bioinertne kompozitne prevlake Al2O325tež.%(ZrO28%Y2O3). Zaštita materijala, vol. 58, br. 4, str. 509-514
Mrdak, M.R. (2017) Testing mechanical structural characteristics of Al2O3 oxide ceramics resistant to sliding friction. Vojnotehnički glasnik, vol. 65, br. 4, str. 924-936
Rooi, P.L., Azad, A., Wan, D.T. (2001) Magnesium aluminate (MgAl2O4) spinel produced via self-heat-sustained (SHS) technique. Materials Research Bulletin, 36(7-8): 1417-1430
Sorrentino, R., Aversa, R., Ferro, V., Auriemma, T., Zarone, F., Ferrari, M., Apicella, A. (2007) Three-dimensional finite element analysis of strain and stress distributions in endodontically treated maxillary central incisors restored with diferent post, core and crown materials. Dental Materials, 23(8): 983-993
Wefers, K., Misra, C. (1987) Oxides and hydroxides of Aluminum. Alcoa Technical Paper, 19, Revised, Aleo Laboratories
Yang, H., Luan, W., Tu, S. (2006) Corrosion Behavior and Thermal Conductivity of Plasma Sprayed. Materials Transactions, 47(7): 1649-1653
Zhihui, Z., Nan, L., Guozhi, R. (2007) Effect of polymorphism of Al2O3 on sintering and grain growth of magnesia aluminate spinel. Science of Sintering, vol. 39, br. 1, str. 9-15
Zhihui, Z., Nan, L.I. (2004) Influence of mechanical activation of AL2O3 on synthesis of magnesium aluminate spinel. Science of Sintering, vol. 36, br. 2, str. 73-79


article language: Serbian
document type: Scientific Paper
DOI: 10.5937/zasmat1901044M
published in SCIndeks: 11/04/2019
Creative Commons License 4.0

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