This research signifies an attempt to apply composite coating by co-deposition coating and assessing, enhancement the Nickel coatings features, by adding the particles of silicon-carbide to solution of electrodeposited. Stainless steel specimens have been subject to electroplating coating utilizing Nickel and nanosilicon carbide particles (70-100 nm) with various amounts (16, 24, 32 and 40) g/L. After coating, the specimens were tested by SEM, AFM, impeded in a solution with 3.5 percent NaCl to investigate the corrosion performance. Then testing the microhardness, and wear resistance. Results obtained from this work showed a great reduction in corrosion currents caused by adding of inert nanoparticles. These enhancements had been detected on all conducted tests for corrosion and wear.

Paper waste, corn starch, and sawdust were utilized as pore generating agents to produce a porous ceramic. Kaolin clay, sodium feldspar, and 20% of pore generating agent were mixed, and the samples were formed by mold method, dried at room temperature for about 72 h and in a furnace at 115 ºC for 5 h, and then fired at 1200 ºC with a soaking time of 3 h. The samples were tested for measurement of physical and mechanical properties and the microstructure was evaluated by scanning electron microscopy and mercury intrusion porosimetry. The results showed that the sample prepared with corn starch had the highest porosity, lowest mechanical properties and permeability, and smallest pore size, while the characteristics of the sample prepared with sawdust were contrary; finally, the sample of paper waste had the highest permeability and intermediate values of other properties.

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A biomaterial could be any material, which is designed for medical application inside human body for medical purposes such as treat, augment, repair or replace a tissue function of the body. And, these materials became very common in the ten recent years, and Ni-Ti alloys is considered as one of the metals that is used for biomedical applications. For long period, the biomaterials are very limited materials and these materials are very expensive such as bioinert titanium based alloys, stainless steel, alumina and zirconia ceramics. This research study focuses on the corrosion properties of both samples (Titanium and Stainless steel) in different corrosive environments such as NaCl, H 2 SO 4 and NaF, and investigates the microstructure before and after corrosive environments. And then, measuring the surface roughness with and without corrosive environments. Finally, XRD for both titanium and stainless steel samples are tested.