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Author Cui, Fu zhai ♦ Yang, Jing xin ♦ Jiao, Yan peng ♦ Yin, Qing shui ♦ Zhang, Yu ♦ Lee, In Seop
Source SpringerLink
Content type Text
Publisher SP Higher Education Press
File Format PDF
Copyright Year ©2008
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences
Subject Keyword metal (alloys) ♦ calcium phosphate(s) ♦ coating(s) ♦ degradation ♦ dental/endosteal implant ♦ Materials Science
Abstract Magnesium alloy has similar mechanical properties with natural bone, but its high susceptibility to corrosion has limited its application in orthopedics. In this study, a calcium phosphate coating is formed on magnesium alloy (AZ31) to control its degradation rate and enhance its bioactivity and bone inductivity. Samples of AZ31 plate were placed in the supersaturated calcification solution prepared with Ca(NO$_{3}$)$_{2}$, NaH$_{2}$PO$_{4}$ and NaHCO$_{3}$, then the calcium phosphate coating formed. Through adjusting the immersion time, the thickness of uniform coatings can be changed from 10 to 20 μm. The composition, phase structure and morphology of the coatings were investigated. Bonding strength of the coatings and substrate was 2–4 MPa in this study. The coatings significantly decrease degradation rate of the original Mg alloy, indicating that the Mg alloy with calcium phosphate coating is a promising degradable bone material.
ISSN 16737377
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2008-06-06
Publisher Institution Chinese Universities
Publisher Place Heidelberg
e-ISSN 16737482
Journal Frontiers of Materials Science in China
Volume Number 2
Issue Number 2
Page Count 6
Starting Page 143
Ending Page 148


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Source: SpringerLink