The processes occurring in glass-ceramic solders of sapphire-niobium seals, used as current lead-ins in gas-discharge lamps with a discharge in alkali-metal vapor, were studied. The structural changes occurring in the glass-ceramic solder, based on the system of oxides CaO–Al2O3 and CaO–MgO–Al2O3, upon heating to 1600°C with niobium diffusing into the melt, are analyzed on the basis of x-ray phase analysis of the composition and a study of the microhardness.
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Translated from Steklo i Keramika, No. 10, pp. 38 – 43, October, 2018.
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Gavrilov, S.A., Gavrish, S.V. & Puchnina, S.V. Investigation of Processes in Glass-Ceramic Solders of Sapphire-Niobium Seals in Gas-Discharge Lamps. Glass Ceram 75, 408–412 (2019). https://doi.org/10.1007/s10717-019-00095-5
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DOI: https://doi.org/10.1007/s10717-019-00095-5