Influence of ZrO2-Y2O3 and ZrO2-CaO coatings on microstructural and mechanical properties on Mg-1,3Ca- 5,5Zr biodegradable alloy

International Conference on Innovative Research - ICIR Euroinvent 2016

Istrate, B.^1 ; Munteanu, C.^1 ; Matei, M.N.^2 ; Oprisan, B.^3 ; Chicet, D.^4 ; Earar, K.^2

Gheorghe Asachi Technical University of Iasi, Faculty of Mechanical Engineering, 43 D. Mangeron Street, Iasi

700050, Romania^1

Dunarea de Jos University of Galati, Faculty of Medicine, Dental Medicine, Al. I. Cuza 35 Street, Galati, Romania^2

Gr.T. Popa Medicine University of Iasi, Faculty of General Medicine, University street nr. 16, Iasi, Romania^3

Gheorghe Asachi Technical University of Iasi, Faculty of Material Science and Engineering, 61-63 D. Mangeron Street, Iasi

700050, Romania^4

关键词: Atmospheric plasma spraying;    Biodegra-dable materials;    Biodegradable alloys;    Corrosion-resistant;    Degradation rate;    Mechanical aspects;    Micro-structural;    Osteoconductivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/133/1/012010/pdf
DOI  :  10.1088/1757-899X/133/1/012010

来源: IOP

【 摘 要 】

Zirconia (ZrO2) as a ceramic biomaterial facilitates the osteoconductivity in new bone formation around implant. In order to improve the degradation and the surface properties, it is necessary to apply a surface film to satisfy multiple clinical requirements such as mechanical strength, biocompatibility, and degradation rate. Therefore, surface changing to form a tenacious, biocompatible and corrosion resistant modified layer has become a necessary study in biodegradable materials. The aim of the study is to observe the morphology, structural and scratch analysis for some coatings of ZrO2-CaO and ZrO2-Y2O3 having similar thickness deposited with an atmospheric plasma spraying facility, Sulzer Metco 9MCE, using scanning electron microscopy and X-Ray diffraction. Some mechanical aspects were highlighted during the scratch test. Comparative scratch tests were carried out to study the bonding properties between the coatings and the substrates.