Investigation of Thermal Stress Performance of Si₃N₄ Discs for Aerospace Applications

Hüseyin Fırat KAYIRAN

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Research Articles

Issue

Volume 1 Issue 1 (2025): In Progress

How to Cite

KAYIRAN, H. F. (2025). Investigation of Thermal Stress Performance of Si₃N₄ Discs for Aerospace Applications. Climate-Adaptive Materials Engineering, 1(1), 1-11. https://journals.explorerpress.com/index.php/came/article/view/24

Authors

Hüseyin Fırat KAYIRAN

Agricultural and Rural Development Support Institution, Mersin, Turkey

Abstract

The behavior of a disk made of silicon nitride (Si₃N₄) under thermal loads was investigated using numerical analysis. Due to its superior properties such as high thermal resistance, low coefficient of thermal expansion, and high fracture toughness, Si₃N₄ stands out among advanced ceramic materials. Owing to these characteristics, it is widely used in gas turbine engine components, bearing systems, cutting tools, and engineering elements operating at high temperatures. In this study, it was assumed that the elastic modulus does not vary with temperature, and a formulation describing this relationship was derived. Thermal analyses were conducted at temperature levels of 80 °C, 100 °C, 120 °C, 140 °C, and 160 °C. The results revealed that with increasing temperature, both radial and tangential stresses rise in magnitude. Furthermore, it was determined that tangential stresses are significantly higher compared to radial stresses.

Keywords:

thermoelasticity, aerospace applications, silicon nitride (Si₃N₄)

References

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