X-ray diffraction study of epitaxial zinc and cadmium films prepared by hot-wall technique
Hot-wall technique greatly improves the quality of zinc and cadmium films deposited on glass substrate. At substrate temperature the growth of such films is well ordered, showing highly preferred orientation along c-axis. However, if the substrate temperature is increased beyond certain limit, we get polycrystalline growth of the films. This shows that the growth of zinc and cadmium films on glass substrate strongly depends on the substrate temperature.
Pb-Zn deposits in the western Hubei Province were mainly formed through sedimentation and hydrothermal deposition. Sedimentary type deposits usually formed during late Sinian to Cambrian period. Hydrothermal type deposits are mainly related to middle-late Yanshanian regional extension, and mineralization happened mainly in Qingfeng competent deformation zone, western Shennongjia faulted dome, northern Huangling faulted dome, secondary Xianfeng and Zoumaping anticline. Recent explorations show that there are very excellent geological conditions and prospecting potential in the studied region.