Studying the Effects of Gas Heat Treatment on the Distribution of the Doping Elements on the Surface Layer of Titanium Alloys BT9

In this issue, the effect of gas heat treatment ambient at the temperature of 950C for 8hours using the gases NH3 or CH4 and using the gases NH3 and CH4 for (4+4)hours of the distribution of the doping elements on Titanium alloys BT9 was studied. Oxide formation at the different treatment ambient as a reason of gas-phase oxygen distribution to high depths in the samples was discovered.

Geological study of basaltic rocks in Sheen Hill

This study deals with the basaltic rocks spread in Sheen Volcanic Hill. Where the studies have signified that these volcanic eruptions are an extrusive emergences, come from Sheen Barsheen Volcano, which Were poured as basaltic casts of declinations towards the east, separated by lateritic separations, date back in origin to the end of late Miocene- Pliocene of big thicknesses near the rifting line, over 800 m, thick.

Effect of metal type and surface treatment on shear bond strength of resin cement (in vitro study)

Background Resin bonded fixed partial dentures appeared to prevent the excessive preparation of dental tissue Investigation of surface treatments to improve the bond of resin cements to metals may contribute to the longevity of these restorations. Due to the potential lack of ideal preparation form the type of alloy and its surface pretreatment may have clinically relevant correlations with the retentive strength of castings to minimally retentive preparations Aim The aim of this search is to study the bonding resin cement strength to different types of the metal alloy due to the surface treatment Purpose Evaluate the effects of two different surface treatments on shear bond strength SBS between a palladium silver alloy Pb Ag and commercially pure titanium CP Ti cast alloy with resin luting cements

Assesment of the efficiency of titanium mesh in management of orbital floor fracture

The aim of this study to assesment the effect of using titanium mesh to repair isolated monolateral blow- out orbital fractures. The research sample comprised 15cases reported to the Department of ophthalmology and department of oral and maxillofacial surgery at Alassad University Hospital Latakia-Syria , the time between trauma and procedure of surgery was taken into account. The clinical observation contained studying of eye movement , vertical localization of eyeball, diplopia through15 day, month, and 3month after the surgery . The enophthalmos was monitored also through: 3 months ans 6 months after the surgery Results showed that there is statistical difference before and after the surgery operation. Eye movement returned completely normal after 3 months, the localization of injured side of eyeball returned natural when compared to the localization of intact side, and diplopia was corrected through the catamnesis Using Titanium mesh in repairing blow- out fractures led to improve the functional side of eyeball, so this important part of face was returned functionally and esthetically.

Bonding Resin Cement to Metal Alloys of Different Surface Treatments (in Vitro Study)

Partial veneer crown has appeared to prevent the excessive preparation of dental tissue with complete crown and the major reason success of this prosthesis could be strength of cementation. Therefore the latest studies have been focusing on developing new material and technique to increase the bonding strength and using new technique for surface treatment or change type of metal alloy. The aim of this search is to study the bonding resin cement strength to different type of metal alloy due to surface treatment.

Titanium Recovery from its Aqueous Media by 3-Acetylpentane-2,4-Dione as Reagent

3-acetylpentane-2,4-dione (AD) was synthesized and characterized using elemental analysis and IR spectroscopy, in order to examine it as an extractant for recovery of titanium from aqueous acidic media. Various factors, which affect recovery procedure as nature of acids, titanium concentration, acid concentration, type of diluents, and interfering ions, have been studied. It is shown to be a very effective extractant for titanium (IV) from perchloric acid medium, however, the time of extraction is very long (10 min). The extraction of titanium is independent of the initial metal ion concentration. Regarding competition among impurity metal ions, iron (III) seems to be the most competitive ion which could be avoided using fluoride ions as masking agent. The stripping of titanium was investigated using mixtures of 0.50 M NaF and 0.10 NaCl. The stripping procedure was very fast and the yield was 99.71%. The results of this investigation suggest that, it’s highly recommended to use the synthesized compound as extractant for titanium ions from its acidic media.