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Physical-Chemical Properties of Low-Melting Phosphate Glasses in Relation to Tin Oxide Content

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The influence of SnO on the physicochemical properties of low-melting glasses in the system Li2O–SnO–P2O5(LSP), intended for use in compositions for vacuum-tight low-temperature bonding of different materials, was studied. The low values of Tg promoted high spreadability of LSP-glass powders at temperatures below 450°C (typical for gluing electronic articles). The mass losses upon boiling of LSP-glasses varied over a wide range (0.19 – 4.55%), and in terms of chemical resistance the glasses characterized by mass losses below about 3% surpass the lead-borate glasses widely used in solders. The values of ñv for LSP-glasses were raised to values characteristic for lead-borate glasses by optimizing the alkali-content ratio.

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Authors and Affiliations

  1. D. I. Mendeleev University of Chemical Technology, Moscow, Russia

    D. K. Chakvetadze, É. M. Zinina, Yu. A. Spiridonov & V. N. Sigaev

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  1. D. K. Chakvetadze
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  2. É. M. Zinina
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  3. Yu. A. Spiridonov
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  4. V. N. Sigaev
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Correspondence to D. K. Chakvetadze.

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Translated from Steklo i Keramika, No. 1, pp. 3 – 7, January, 2019.

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Chakvetadze, D.K., Zinina, É.M., Spiridonov, Y.A. et al. Physical-Chemical Properties of Low-Melting Phosphate Glasses in Relation to Tin Oxide Content. Glass Ceram 76, 3–6 (2019). https://doi.org/10.1007/s10717-019-00121-6

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  • DOI: https://doi.org/10.1007/s10717-019-00121-6

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