In this search nano silica powder was prepared by the bond fracturing of silica – oxygen using wet chemical method at PH 1-2  and by eliminate all undesired oxides by using ultrasound bath , and separating the compound by centrifuge ,and washing the product with distilled water ,and by separating and calcining the product at different temperatures it Weill is trail product with particle size ( 40-50) nm ,then  XRD and AFM was to evaluate the product

Synthesis of titanium dioxide (TiO 2 ) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form the sol. Then, at 50 heating and ageing was applied to form stable sol-gel . Every glass substrate dipping in sol-gel beaker for period time (1,3,5)min respectively, for obtaining different thickness films. To evaluate the performance of films, After annealing at 500 the crystallinity of the films was determined by using the x-ray diffractometer (XRD). The change on the surface morphology was observed using Atomic Force Microscope(AFM). Finally, Optical properties measurements Absorbance (A) and transmittance(T)) for (TiO 2 ) films were studied by UV-Visible spectrometer. analysis on the films. It has been successfully shown that the anatase crystalline phase was observed when the TiO 2 thin film was annealing at 500°C. The roughness and the crystalline size of TiO 2 thin film changed with the thickness. The minimum grain size( 6.92) nm for thickness 1.2µm UV-visible studying that absorption is maximum at UV spectrum (opaque) and the transmittance is maximum at the visible spectrum

In this research, Ti-6Al-4V alloy samples were coated with 4 gm strontium hydroxyapatite with 2 gm from chitosan and (2,4,6) gm from collagen and the samples heat treated at 150 ºC in muffle furnace for one hour under air atmosphere. The sample were tested by XRD,FTIR,SEM and corrosion test was also achieved. The samples were immersed in a laboratory prepared simulated body fluid (SBF) solution for two weeks, the samples treated at 150 ºC in muffle furnace for one hour under air atmosphere to get more bonding for new layer . The samples tested by XRD,FTIR,SEM and corrosion test was also achieved after immersing . The sample coated with 6 gm collagen showed maximum growth of hydroxyapatite formed from simulated body fluid SBF and corrosion characteristics was much improved.