G. El-Damrawi

Structural Investigations on Na2O – CaO-V2O5- SiO2 Bioglass Ceramics

G. El-Damrawi, A. K. Hassan, H. Kamal, M. Aboelez & S. Labeeb · Current Journal of Applied Science and Technology · 2016

All as obtained glasses in the system 24.5 Na2O-24.5 CaO-6 P2O5- xV2O5 (45-x) SiO2 (x ranges from 0-15 mole %) are transparent and have an amorphous network structure. Glasses containing up to 6 mol% V2O5 still transparent upon heat treatment at 660°C for 4 hours. On the other ha...

Open access Research Article 10.9734/BJAST/2016/26683

Microstructure and in vitro Bioactivity of Metal Substituted Hydroxyapatite

G. El-Damrawi, H. Kamal, H. Doweidar & A. E. Dawood · Current Journal of Applied Science and Technology · 2016

Pure Hydroxyapatite (HAp) nanoparticles doped with Mn2+ and Fe3+ ions were synthesized using wet chemical method (WCM). Samples were characterized by different spectroscopic techniques such as XRD, FTIR, and ESR. The measurements revealed that a typical HAp powder pattern was obt...

Open access Research Article 10.9734/BJAST/2016/24940