• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2002.05a
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• pp.10-11
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• 2002

• Proceedings of the Korean Ceranic Society Conference
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• 2004.10a
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• pp.98.1-98.1
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• 2004

• Proceedings of the Materials Research Society of Korea Conference
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• 1993.11a
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• pp.94-94
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• 1993

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2007.11a
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• pp.233-234
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• 2007

• Proceedings of the Materials Research Society of Korea Conference
• /
• 2000.11a
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• pp.108-108
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• 2000

• Proceedings of the Korean Institute of Surface Engineering Conference
• /
• 2000.11a
• /
• pp.28-29
• /
• 2000

• Journal of the Korean institute of surface engineering
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• v.26 no.1
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• pp.31-42
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• 1993

• Proceedings of the Korean Institute of Surface Engineering Conference
• /
• 2003.05a
• /
• pp.16-16
• /
• 2003

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.20 no.10
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• pp.3234-3242
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• 1996

This paper describes experimental results of modified small punch( MSP) test conducted to evaluate the fracure characteristics and mechanical properties of plasma sparayed zirconia ($ZrO_2$ stabilized with 8wt. % $Y_20_3$ : YSZ) NiCrAlY composite. The mixing ratios of YSZ/NiCrAlY were 0/100, 25/75, 50/50, 100/0 v.%. Test temperatures ranged from 293K to 1473K. This study is directed at development of thermal barrrier coating(TBC) system with superior heat resistance and mechanical properties. The microstructure and fracture process of the composite were examined by SEM and AE method. The mechanical properties of 100% YSZ were nearly independent of the temperatures tested in this study. In contrast, the NiCrAlY-containing composites showed a significant decrease of the mechanical properties above 1273K, showing a ductile- brittle transition behavior up to the temperature. Furthermore, it can seen that 25% YSZ/75% NiCrAlY composite gave the highest fracure strength and fracture energy among the mixing ratio tested over the temperature range.

• Applied Chemistry for Engineering
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• v.31 no.6
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• pp.624-629
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• 2020

For more effective temperature control of atmospheric plasma sprayed (APS) zirconia thermal barrier coating, understanding of the parameters, which influence the substrate temperature, is essential and also more numerical results based on the experimental data are required. This study aims to investigate the substrate temperature control during an APS process. The APS process deals with air-cooled systems, plasma-gas flow, powder feed rate, robot velocity, and substrate effect on the substrate surface temperature control during the process. This systematic approach will help to handle the temperature control, and thus lead to better coating quality.