The Greek philosophers believe that Know thyself and I believe this too. The means of this term for me is: I have liked material science since the childhood. Although I studied nuclear physics in bachelors degree but tried to attend the material science courses (Solid physics, electronic, crystallography, and general shop) and after finished bachelors degree, decided to continue master degree in material science. For this reason I chose plasma engineering, and chose the surface engineering for thesis subject. Same bachelors degree, I attended material science courses in M.S. degree such as advanced corrosion and its laboratory, advanced surface engineering, plasma technology,