X-ray Study of ZnAlO, ZnAlOMn and ZnAlODy Powders
Keywords:
Debye temperature, Debye-Waller factor, X-ray diffraction and Sol-gel technique.Abstract
Sol gel and X-ray study method have been adopted to prepare the ZnAlO, ZnAlOMn and ZnAlODy powders and to determine the values of Debye temperature (θM), Debye-Waller factor (B) and amplitude of vibrations respectively in the present investigation. X-ray diffractograms (XRD) have been recorded for ZnAlO, ZnAlOMn and ZnAlODy powders. The Debye temperature, Debye-Waller factor and amplitude of vibrations have been obtained from integrated intensities of X-rays. The intensities have been measured with an upgraded JEOL JDX-8P powder diffractometer. The Powder X-ray diffractometer fitted with a NaI (Tl) scintillation counter using filtered CuKα radiation at room temperature and have been corrected for thermal diffuse scattering (TDS) effect. Filtered copper radiation was employed at a goniometer speed of 1/2° per minute. The X-ray tube was operated at 40 kV and 30 mA power. The XRD patterns correspond to those of the standard patterns of ZnO polycrystalline and to hexagonal wurtzite structure (JCPDS No 75-0576).
