Chapter 49. Glass and Glass Ceramic-to-Metal Seals: Interface Modification with Sol-Gels

  1. John B. Wachtman Jr.
  1. Lauri J. Devore1 and
  2. Scott Reed2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch49

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

How to Cite

Devore, L. J. and Reed, S. (1989) Glass and Glass Ceramic-to-Metal Seals: Interface Modification with Sol-Gels, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch49

Author Information

  1. 1

    EG&G Mound Applied Technologies Miamisburg, OH

  2. 2

    SNLA Albuquerque, NM

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • advanced ceramics processing;
  • silicon nitride;
  • chemical variations;
  • nitrogen;
  • silicon carbide

Summary

Interface chemistry is an important aspect of glass/glass ceramic-to-metal seals. Presently, glass ceramic-to-metal seals fabricated using a lithium silicate (S-type) glass-ceramic and Inconel 718 metal are used in the production of numerous high strength headers. While adhesion and seal strength are acceptable with these materials, limitations such as inability to flow into small holes and bubble formation still exist. Modification of the interface by coating the metal surface with a sol-gel derived film to promote wetting and reduce the limitations is being examined. Additionally, stainless steel (304L), and aluminum were coated with sol-gel films to modify the interfaces for improved sealing with S-type glass and other glasses. Silicate, multicomponent silicates, and non-silicate sols were used in this study. Basic wetting studies and SEM were performed to evaluate the interface of the glass/glass ceramic-to-metal seals.