标题：A new high temperature resistant glass-ceramic coating material
作者：Chen, Xiangtian (0); Han, Ye (0); Yao, Shuyu (0); Zhang, Weiwei (0); Yao, Yunsui (0); Wang, Zongfeng (0)
会议名称：2011 International Conference on Civil Engineering and Transportation, ICCET 2011
会议日期：October 14, 2011 - October 16, 2011
来源：Applied Mechanics and Materials
摘要：A new glass-ceramic coating material on nickel based super alloy substrate had been found, the glass-ceramic coating material was developed from a glass based on MgO-Al2O3-TiO2 system. The coating material was characterized through X-ray diffractometry (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), hardness, thermal expansion coefficient testing. XRD analysis of the coating materials and the resultant coatings showed presence of a number of microcrystalline phases. SEM micrographs indicated microstructure of the material. Optical micrographs showed smooth glossy impervious free surface with defects. Hardness analysis showed the glass-ceramic coating material had higher microhardness. The thermal expansion coefficient of the nimonic alloy was much higher compared to the coating material at specific temperature. © (2011) Trans Tech Publications.