<p>Thermal shock testing is a crucial method for evaluating the quality and lifespan of thermal barrier coatings, which are widely used in the aerospace and power generation industries. Currently, these tests are predominantly conducted under static conditions, which do not fully replicate real operational environments. In this study, we aimed to assess the strength and quality of thermal barrier coatings under dynamic conditions and to collect data on temperature distribution, supported by experimental analyses. To achieve this, a specialized test setup was designed, coating applications were performed, and lifetime tests were conducted. In addition to the test results microscopic examinations of the coatings were performed. The findings reveal that static tests do not accurately reflect the effects observed under dynamic operating conditions. Furthermore, the damage occurred significantly faster in the dynamic tests than in the static tests. These results highlight the necessity of dynamic testing for a more reliable assessment of thermal barrier coatings.</p>

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Dynamic thermal shock approach to YSZ coated materials for thermal barrier

  • Murat Cihan Çalışkan,
  • Ünal Uysal,
  • Fatih Üstel

摘要

Thermal shock testing is a crucial method for evaluating the quality and lifespan of thermal barrier coatings, which are widely used in the aerospace and power generation industries. Currently, these tests are predominantly conducted under static conditions, which do not fully replicate real operational environments. In this study, we aimed to assess the strength and quality of thermal barrier coatings under dynamic conditions and to collect data on temperature distribution, supported by experimental analyses. To achieve this, a specialized test setup was designed, coating applications were performed, and lifetime tests were conducted. In addition to the test results microscopic examinations of the coatings were performed. The findings reveal that static tests do not accurately reflect the effects observed under dynamic operating conditions. Furthermore, the damage occurred significantly faster in the dynamic tests than in the static tests. These results highlight the necessity of dynamic testing for a more reliable assessment of thermal barrier coatings.