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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48182

Title: Bonding characteristics and chemical inertness of Zr–Si–N coatings with a high Si content in glass molding
Authors: Li-Chun Chang
Yu-Zhe Zheng
Yung-I Chen
Shan-Chun Chang
Bo-Wei Liu
Contributors: 國立臺灣海洋大學:光電與材料科技學系
Keywords: bonding characteristics
chemical inertness
glass molding
mechanical properties
oxidation resistance
Date: 2018-05
Issue Date: 2018-08-15T07:38:59Z
Publisher: Coatings
Abstract: Abstract: High-Si-content transition metal nitride coatings, which exhibited an X-ray amorphous phase, were proposed as protective coatings on glass molding dies. In a previous study, the Zr–Si–N coatings with Si contents of 24–30 at.% exhibited the hardness of Si3N4, which was higher than those of the middle-Si-content (19 at.%) coatings. In this study, the bonding characteristics of the constituent elements of Zr–Si–N coatings were evaluated through X-ray photoelectron spectroscopy. Results indicated that the Zr 3d5/2 levels were 179.14–180.22 and 180.75–181.61 eV for the Zr–N bonds in ZrN and Zr3N4 compounds, respectively. Moreover, the percentage of Zr–N bond in the Zr3N4 compound increased with increasing Si content in the Zr–Si–N coatings. The Zr–N bond of Zr3N4 dominated when the Si content was >24 at.%. Therefore, high Si content can stabilize the Zr–N compound in the M3N4 bonding structure. Furthermore, the thermal stability and chemical inertness of Zr–Si–N coatings were evaluated by conducting thermal cycle annealing at 270 °C and 600 °C in a 15-ppm O2–N2 atmosphere. The results indicated that a Zr22Si29N49/Ti/WC assembly was suitable as a protective coating against SiO2–B2O3–BaO-based glass for 450 thermal cycles.
Relation: 8(5)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48182
Appears in Collections:[光電科學研究所] 期刊論文

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