Influence of silicon, strontium and aluminum oxides on silicon nitride ceramics for bone replacements
نویسندگان
چکیده
منابع مشابه
Silicon nitride for total hip replacements
Pettersson, M. 2015. Silicon nitride for total hip replacements. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1242. 53 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9211-3. For more than 50 years total hip replacements have been a common and successful procedure to increase patient mobility and quality of life. The 10-year im...
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Total joint replacements currently have relatively high success rates at 10-15 years; however, increasing ageing and an active population places higher demands on the longevity of the implants. A wear resistant configuration with wear particles that resorb in vivo can potentially increase the lifetime of an implant. In this study, silicon nitride (SixNy) and silicon carbon nitride (SixCyNz) coa...
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SiNx and SiCxNy coatings were fabricated with high power impulse magnetron sputtering (HiPIMS). The coatings microstructure, growth pattern, surface morphology, composition, and bonding structure were investigated by AFM, SEM, GIXRD, TEM, EDS as well as XPS, and related to the deposition parameters target powers and substrate temperature. Crosssections of SiCxNy coatings showed either dense and...
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Silicon nitride (Si(3)N(4)) is a ceramic material developed for industrial applications that demand high strength and fracture resistance under extreme operating conditions. Recently, Si(3)N(4) has been used as an orthopedic biomaterial, to promote bone fusion in spinal surgery and to develop bearings that can improve the wear and longevity of prosthetic hip and knee joints. Si(3)N(4) has been ...
متن کاملDissolution behaviour of silicon nitride coatings for joint replacements.
In this study, the dissolution rate of SiNx coatings was investigated as a function of coating composition, in comparison to a cobalt chromium molybdenum alloy (CoCrMo) reference. SiNx coatings with N/Si ratios of 0.3, 0.8 and 1.1 were investigated. Electrochemical measurements were complemented with solution (inductively coupled plasma techniques) and surface analysis (vertical scanning interf...
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ژورنال
عنوان ژورنال: Matéria (Rio de Janeiro)
سال: 2020
ISSN: 1517-7076
DOI: 10.1590/s1517-707620200004.1178