A New High Temperature Resistant Glass–Ceramic Coating Material

Xiang Tian Chen; Ye Han; Shu Yu Yao; Wei Wei Zhang; Yun Sui Yao; Zong Feng Wang

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

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 99-100A New High Temperature Resistant Glass–Ceramic...

A New High Temperature Resistant Glass–Ceramic Coating Material

Abstract:

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.

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Periodical:

Applied Mechanics and Materials (Volumes 99-100)

Pages:

810-814

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.99-100.810

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Online since:

September 2011

Authors:

Xiang Tian Chen, Ye Han, Shu Yu Yao, Wei Wei Zhang, Yun Sui Yao, Zong Feng Wang

Keywords:

Coating Material, Glas Ceramics, Hardness, High Temperature Resistance

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