Paper Title
Appearing of Quasicrystal in TI – Based TI-ZR-Ni-MG Compoundmaterials

Abstract
Various methods for hydrogen storage have been proposed by many researchers. Magnesium (Mg) was known as one of the most famoushydrogen reservoir materials due to its low cost and good stabilitywhen reacting with hydrogen.However, the energy and temperature used for hydrogen adsorption ofMgwas quite high. In order to improve these disadvantages,alloying methodwas used by adding Mg into Ti-based quasicrystal (Ti-Zr-Ni) . The Ti-based quasicrystal wasa high capabilitymaterialforhydrogenabsorption due to a large number of interstices in the icosahedral quasicrystal (i-phase).This studywas toinvestigate the icosahedral quasicrystaland crystal phase of mixed materialsbetweenTi-based quasicrystals (Ti-Zr-Ni) and Magnesium (Mg).Mechanical alloying process was conducted under two conditions including; (i) rotation speed of 600 rpm with 20 hoursmilling time and (ii) rotation speed of 630 rpm with 30 hoursmilling time.The nominal composition was Ti45-xZr38Ni17Mgx (x = 2, 4).The results from XRD analysis indicated that i-phases and crystal phase were appeared for both conditions that the proposed materials could be used as a hydrogen storage material. Keywords - Quasicrystal, Mechanical alloying, Hydrogen storage material, Magnesium.