×
The submission system is temporarily under maintenance. Please send your manuscripts to
Go to Editorial ManagerOne of the major usages for Al–Pb alloy are bearing alloys because of its lubricant behavior of Pb phase component. Applications of these alloys are in heavy duty, such as boring mills, presses, lathes, milling machines and hydraulic pump bushings. In present work, SiC powder was selected as additive for improving the mechanical properties of Al-Pb alloy that produced by mechanical alloying method. The percentage weight of SiC powder are (2.5, 5,10, 15 %) which mixing together with Al- Pb alloy for two hours in ball milling device, then compacted and sintering to obtain the improved alloy, and examine the mechanical properties (compressive strength and microhardness) of produced alloy. Results show that the additive of SiC powder on the Al-Pb alloy lead to improve the microhardness which increased with increased the percentage of additive, in the other hand, the compressive strength had a reverse effective with increased the percentage of SiC powder.
In today's world, Urinary Tract disorders such as obstructions whatever the causes (stricture, stones), are prevalent and can be extremely dangerous and painful for individuals. One of the most important instruments in the Urological sector for a variety of clinical diseases is the Ureteral stent, a minimally invasive surgical tool for relieving blockages and facilitating kidney-to-Bladder drainage. This review addressed the problems of biofilm formation and polymers currently available for use as new biomaterials in new Ureteral stent designs, providing a comprehensive update on recent developments in stent development. It also evaluated the various biomaterials that found application as Ureteral stents in relation to various issues such as encrustation, bacterial colonization, urinary tract infections, and related clinical issues. This study concluded with a discussion of biomaterials' potential applications and the design in the Urinary Tract.