Bone-like apatite formation on HA/316L stainless steel composite surface in simulated body fluid

HA/316L stainless steel（316L SS） biocomposites were prepared by hot-pressing technique. The formation of bone-like apatite on the biocomposite surfaces in simulated body fluid（SBF） was analyzed by digital pH meter, plasma emission spectrometer, scanning electron microscope（SEM） and energy dispersive...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2009-04, Vol.19 (2), p.347-352
Main Author: 樊新 陈剑 邹俭鹏 万千 周忠诚 阮建明
Format: Article
Language:English
Subjects:
316L stainless steel
316L不锈钢
biocomposites
bone-like apatite
hydroxyapatite
simulated body fluid
复合材料
扫描电子显微镜
模拟体液
等离子发射光谱仪
类骨磷灰石
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Summary:HA/316L stainless steel（316L SS） biocomposites were prepared by hot-pressing technique. The formation of bone-like apatite on the biocomposite surfaces in simulated body fluid（SBF） was analyzed by digital pH meter, plasma emission spectrometer, scanning electron microscope（SEM） and energy dispersive X-ray energy spectrometer（EDX）. The results indicate that the pH value in SBF varies slightly during the immersion. It is a dynamic process of dissolution-precipitation for the formation of apatite on the surface. With prolonging immersion time, Ca and P ion concentrations increase gradually, and then approach equilibrium. The bone-like apatite layer forms on the composites surface, which possesses benign bioactivity and favorable biocompatibility and achieves osseointegration, and can provide firm fixation between HA60/316L SS composite implants and human body bone.
ISSN:1003-6326
DOI:10.1016/S1003-6326(08)60276-9