کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830355 1470353 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical and microstructure of reinforced hydroxyapatite/calcium silicate nano-composites materials
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Mechanical and microstructure of reinforced hydroxyapatite/calcium silicate nano-composites materials
چکیده انگلیسی

In this study, the nano sized hydroxyapatite (HA) and calcium silicate (CS) powders prepared by both chemical precipitation and sol–gel methods respectively. Biphasic nano-composites materials containing different ratios of HA and CS were fabricated and assessed using X-ray diffraction (XRD), Fourier transmission infrared reflectance (FT-IR), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) techniques. The effect of variation of ratios between HA and CS on mechanical properties, microstructure and in vitro study was studied. The results proved that the mechanical properties were enhanced with increasing the CS ratio in the composite. In vitro study proved the formation and nucleation of apatite onto composites surfaces which contain low content of CS after one week of immersion. Finally, it is concluded that the HACS composites containing high HA content at the expense of CS content will be promising for bone substitute’s applications, especially in load bearing sites.

Figure optionsDownload as PowerPoint slideHighlights
► Nano sized of HA and CS powders were prepared.
► Mechanical of HACS composites enhanced with content of CS.
► The apatite formation onto the composites is proved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 44, February 2013, Pages 461–468
نویسندگان
, , ,