Glass-based dielectrics for high temperature capacitors

Michael T. Lanagan, Thomas R. Shrout, Badri Rangarajan, Steven Edward Perini, Sam Conzone, Carlo G. Pantano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Glass and glass ceramics are promising new materials for high temperature capacitors. A survey of present dielectric materials and capacitors shows that major improvements in energy density, volumetric efficiency and performance is achieved by increasing capacitor reliability at high temperature. Glass and glass-ceramics are candidate materials for high temperature capacitors because of their low dielectric loss and high breakdown strengths. Synthesis of glass ceramics begins by quenching glass sheet (300 micron thick) followed by recrystallization into high permittivity ferroelectric compounds. The high temperature dielectric properties of a fresnoite glass ceramic system were explored and the dielectric loss value was below 2% for temperatures less than 350°C. In addition, commercial thin glass sheets (thickness = 50 microns) with high silica content were characterized at high temperature and were found to have very low dielectric loss up to 200°C. Both glass and glass ceramic dielectrics were fully characterized by highly accelerated life testing and the show excellent performance in terms of projected capacitor life at temperatures up to 300°C.

Original languageEnglish (US)
Title of host publicationInternational Conference and Exhibition on High Temperature Electronics 2008, HiTEC 2008
Pages78-83
Number of pages6
StatePublished - Dec 1 2008
EventIMAPS High Temperature Electronics Conference, HiTEC 2008 - Albuquerque, NM, United States
Duration: May 12 2008May 15 2008

Publication series

NameInternational Conference and Exhibition on High Temperature Electronics 2008, HiTEC 2008

Other

OtherIMAPS High Temperature Electronics Conference, HiTEC 2008
CountryUnited States
CityAlbuquerque, NM
Period5/12/085/15/08

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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  • Cite this

    Lanagan, M. T., Shrout, T. R., Rangarajan, B., Perini, S. E., Conzone, S., & Pantano, C. G. (2008). Glass-based dielectrics for high temperature capacitors. In International Conference and Exhibition on High Temperature Electronics 2008, HiTEC 2008 (pp. 78-83). (International Conference and Exhibition on High Temperature Electronics 2008, HiTEC 2008).