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Math. Comput. Appl. 2011, 16(3), 598-604; doi:10.3390/mca16030598

Thermal Stress Analysis in ZrO2 Insulation Coatings on Cr-Ni Substrates during Cooling Process

1
Dokuz Eylül University, Izmir Vocational School of Higher Education, 35150, Buca, Izmir, Turkey
2
Dokuz Eylul University, Department of Metallurgical and Materials Engineering, 35160, Buca, Izmir, Turkey
3
Dokuz Eylul University, Department of Mechanical Engineering, 35100, Bornova, Izmir, Turkey
*
Authors to whom correspondence should be addressed.
Published: 1 December 2011
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Abstract

In this study, thermal stresses analysis of ZrO2 insulation coatings on Cr-Ni substrate during the cooling process was investigated. A transient thermal analysis was performed using finite element method (FEM) via ANSYS software. The temperature versus the time curve obtained from FEM solution was controlled with the temperaturetime diagram measured by a thermocouple. The results obtained from the numerical calculations were improved by the experimental measurement. Additionally, residual stresses were calculated by FEM solutions and they were compared in different points. The compressive and tensile stresses occurred in ZrO2 coating and Cr-Ni substrate owing to the different thermal expansion coefficients in each material, respectively.
Keywords: Sol-gel preparation; Thermal properties; FEM Sol-gel preparation; Thermal properties; FEM
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Okur, A.; Yigit, R.; Celik, E.; Sayman, O. Thermal Stress Analysis in ZrO2 Insulation Coatings on Cr-Ni Substrates during Cooling Process. Math. Comput. Appl. 2011, 16, 598-604.

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