Cam Fiberle Güçlendirilmiş Hidroksiapatit Üretimi

Hidroksiapatit (HA), biyomedikal alanda bilinen en yaygın biyoseramiktir. Hidroksiapatit formülü Ca10(PO4)6(OH)₂ şeklindedir. Bu çalışmada, cam elyafın (CF) HA'e etkisi çalışıldı. HA, sol-jel prosesi ilesentezlendi. Ağırlıkça % 10 oranında CF içeren karışım, hidrolik presle şekillendirildi. Homojen tozlar 4saat 1100C'de sinterlendi. Tozların mineralojik yapısı ve tane boyutu, X-ışını difraktometresi (XRD) vetane boyut analiz cihazı ile yapılmıştır. XRD analizinden HA tozu, JCPDS No.09-0432 kart ile uyumluolarak elde edildi. Daha sonra şekillendirilmiş örnekler taramalı elektron mikroskobu (SEM), ve üniversaltest cihazı ile karakterize edildi. CF ilavesi ile 3 nokta eğilme mukavemeti ve basınç dayanımı iyileştirildi.Cam fiber katkılı HA’nın eğme ve basma mukavemetinde artmanın katkısız HA’ya nazaran sırasıyla %20,3 ve % 23,3 olduğu görülmüştür.

Production of Glass Fiber Reinforced Hydroxyapatite

Hydroxyapatite is the most common known bioceramics in biomedical area. The formula of Hydroxyapatite (HA) is Ca₁₀(PO₄)₆(OH)₂. In this study, the effect of glassfiber (GF) to HA was performed. HA was synthesized by sol-gel process. Mixture containing 10 wt% of GF was shaped by hydraulic press. Homogenous powders were sintered at 1100C for 4 hours. Mineralogical properties and particle size and distribution of powders were performed by X-ray diffractometer (XRD) and particle size analyzer. From XRD analysis, the HA powder was obtained as confirmed by the JCPDS file No.09-0432. Then shaped samples were performed by universal testing machine and scanning electron microscope (SEM). 3 point bending strength and compressive strength were improved by GF addition. Increase in the bending and compressive strength of the glass fiber doped HA is observed to be 20.3% and 23.3% compared to the undoped HA, respectively.

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