Intermetallic Hydrides Based on (Zr-Ti)(Fe-Cr)2 Type of Compounds
In this work, the (Zr-Ti)(Fe-Cr)2 based compounds have been synthesized while charging-discharging hydrogen ability has been examined. Relatively low hydrogen pressure has been used for the hydrogenation of the samples. After following the discharging procedure, a high desorbed amount of hydrogen ~180 (ml of H2)/(gr of the alloy) has been measured on the first 15 min by using a volumetric device. The crystal structure has been analyzed by means of x-ray diffraction (XRD) while a Rietveld analysis has been performed on the x-ray diffraction patterns and the characteristic MgZn2 type of structure has found to be the dominant phase in both compounds. The scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDX) have been used for microstructural studies and quantitative analysis, respectively. Magnetic measurements have been performed on the samples and a paramagnetic behaviour has found to be at room temperature.
Paula Maria Vilarinho
S. S. Makridis, C. Christodoulou, M. Konstantakou, T.A. Steriotis, M. Daniil, A. Ioannidou, E.S. Kikkinidis, A. K. Stubos, "Intermetallic Hydrides Based on (Zr-Ti)(Fe-Cr)2 Type of Compounds", Materials Science Forum, Vols. 514-516, pp. 666-671, 2006