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Subsolidus phase equilibria in the PbO-poor part of the TiO2–PbO–SiO2 system and its application in low-temperature thick-film dielectrics

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Abstract

Subsolidus equilibria in the PbO-poor part of the TiO2–PbO–SiO2 diagram were studied with the aim of investigating possible applications for low-temperature thick-film dielectrics. The tie lines are between PbTiO2 and PbSiO3, and between PbTiO3 and SiO2. The results show that the TiO2, when added to low-temperature softening point glasses, reacts with the PbO from the glass, so forming PbTiO3. These results were applied to a low-temperature firing dielectric, consisting of a lead-rich PbO–SiO2–B2O3 glass filled with a TiO2 powder. The conversion of TiO2 to the PbTiO3 crystalline phase was observed above firing temperatures of approximately 600 °C. The kinetics of the reaction depend on the particle size of the TiO2.

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Authors and Affiliations

  1. Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia

    Marko Hrovat & Janez Holc

  2. Ecole Polytechnique Federale de Lausanne, CH-1015, Lausanne, Switzerland

    Thomas Maeder & Caroline Jacq

  3. Slovenian National Building and Civil Engineering Institute, Dimicˇeva 12, SI-1000, Ljubljana, Slovenia

    Janez Bernard

Authors
  1. Marko Hrovat
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  2. Thomas Maeder
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  3. Caroline Jacq
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  4. Janez Holc
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  5. Janez Bernard
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Correspondence to Marko Hrovat.

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Hrovat, M., Maeder, T., Jacq, C. et al. Subsolidus phase equilibria in the PbO-poor part of the TiO2–PbO–SiO2 system and its application in low-temperature thick-film dielectrics. Journal of Materials Research 21, 3210–3214 (2006). https://doi.org/10.1557/jmr.2006.0396

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  • DOI: https://doi.org/10.1557/jmr.2006.0396

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