As highlighted in the Journal of Applied Physics article “Assessment of Residual Stress Evolution in Glass-to-Metal Seals Amid Heating Process”, residual stress (RS) plays a critical role in the structural integrity and performance of glass-to-metal (GTM) seals, especially in extreme environments. Through the use of advanced in situ stress monitoring technologies, this study offers valuable insights into how RS changes during the heating process.
GTM seals are widely used in high-performance, high-reliability systems—such as aerospace, nuclear, and cryogenic applications—where temperature variations and pressure differentials can compromise long-term hermeticity. The mismatch in coefficients of thermal expansion (CTE) between metal and glass leads to built-in residual stresses, which must be carefully managed to maintain seal integrity.
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Article with all rights reserved, courtesy of Journal of Applied Physics —– https://pubs.aip.org