پديد آورنده :
صالح، سميه السادات
عنوان :
ساخت و مشخصه يابي پوشش كامپوزيتي نانو ساختار هيدروكسي آپاتيت- فورستريت براي بهبود سازگاري زيستي فولاد زنگ نزن 316ال
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شناسايي و انتخاب مواد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
سيزده،94ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمدحسين فتحي،محمدعلي گلعذار
استاد مشاور :
كيوان رئيسي
توصيفگر ها :
نانو كامپوزيت , روش سل-ژل , زيست فعالي , زيست سازگاري
تاريخ نمايه سازي :
16/4/93
استاد داور :
حميدرضا سليمي، علي اشرفي
چكيده انگليسي :
95 Preparation and characterization of Forsterite Hydroxyapatite composite nanostructured coating for biocompatibility improvement of 316 L stainless steel Salimehsadat Saleh ss saleh@ma iut ac ir January 2014 Department of Materials Engineering Isfahan University of Technology 84156 83111 Isfahan IranDegree M Sc Language FarsiSupervisors Prof Mohammadhossein Fathi E mail fathi@cc iut ac ir Prof Mohammad Ali Golozar E mail golozar@cc iut ac irAbstract Hydroxyapatite is chemically similar to the mineral components of bones It is one of thefew materials that are considered bioactive meaning that it will support bone in growthand osseointegration when used in orthopedic and dental applications It is expected thatthe incorporation of a ceramic reinforcement having grain size less than 100 nm wouldimprove mechanical properties In this work hydroxyapatite forsterite composite coatingswere prepared using sol gel method by dipping stainless steel 316L substrates in a solcontaining hydroxyapatite as matrix and forsterite 10 20 30 wt as reinforcement TheX ray diffraction XRD scanning electron microscopy SEM and energy dispersive X ray analysis EDX were used to investigate structure and morphology of the coatingbefore and after immersion in simulated body fluid at 37 C The obtained results showedthat apatite layer can be formed on the surface of the coating soaked in simulated bodyfluid for 1 2 3 and 4 weeks which indicate that this coating possesses good bioactivity To observe the corrosion behavior potentiodynamic polarization test was informed inringer solution The reduced corrosion current observed for all of the coated samples confirmed the significant improvement corrosion resistance of the substrates withcomposite hydroxyapatite forsterite coating Results suggested that this compositehydroxyapatite forsterite coating might be potentially useful for biomedical applications especially as a coated implant for hard tissue treatment Key words nanocomposite coating hydroxyapatite forsterite bioactivity corrosion
استاد راهنما :
محمدحسين فتحي،محمدعلي گلعذار
استاد مشاور :
كيوان رئيسي
استاد داور :
حميدرضا سليمي، علي اشرفي
