A New High Temperature Resistant Glass–Ceramic Coating Material

Abstract:

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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.

Info:

Periodical:

Edited by:

Xuejun Zhou

Pages:

810-814

DOI:

10.4028/www.scientific.net/AMM.99-100.810

Citation:

X. T. Chen et al., "A New High Temperature Resistant Glass–Ceramic Coating Material", Applied Mechanics and Materials, Vols. 99-100, pp. 810-814, 2011

Online since:

September 2011

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Price:

$35.00

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