✍ Scribed by Neale S. McAlpine; Ronald A. Fredlein
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The defect structure of divalent magnesium-doped -Fe 2 O 3 has been examined by Rietveld structure refinement of the X-ray powder diffraction data. The results show that the Mg 2؉ ions occupy the vacant interstitial octahedral sites as well as substituting on the two adjacent octahedral Fe 3؉ sites
The structural characteristics of tin-and titanium-doped -Fe 2 O 3 prepared by hydrothermal methods have been investigated by Rietveld structure refinement of the X-ray powder diffraction data. The analysis reveals that the dopant ions adopt two distinct sites: in addition to partially substituting
The behaviour of the passivating layers formed by anodic polarization on zinc electrodes in borate and arsenate and in borate arsenate mixture solutions of pH 8.9 was studied by means of impedance measurements and XPS analysis. An equivalent circuit for the system is employed for the data fitting. S