Chapter 22. Hermetic Glass Bodies with Controlled Porosity: Processing and Properties

  1. Hau-Tay Lin and
  2. Mrityunjay Singh
  1. Aldo R. Boccaccini1,
  2. Jose L. Spino2 and
  3. Valeria Cannillo3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294758.ch22

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

How to Cite

Boccaccini, A. R., Spino, J. L. and Cannillo, V. (2002) Hermetic Glass Bodies with Controlled Porosity: Processing and Properties, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294758.ch22

Author Information

  1. 1

    Department of Materials, Imperial College Prince Consort Rd., London SW7 2BP, UK

  2. 2

    European Institute for Transuranium Elements P. O. Box 2340, D–76125 Karlsruhe, Germany

  3. 3

    Faculty of Engineering, University of Modena and Reggio Emilia Via Vignolese 905, 1–41100 Modena, Italy

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375792

Online ISBN: 9780470294758

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Keywords:

  • hermetic glass;
  • electroceramics;
  • radiographs;
  • macroscopic;
  • electronic packaging

Summary

This paper deals with glasses and ceramics containing closed (isolated) porosity. After an introduction focussing on the applications and relevance of porous hermetic materials, a processing approach developed to produce hermetic porous glass bodies containing well-defined spheroidal pores is presented. The method is based on the addition of hollow glass microspheres to a glass powder and densification by hot-pressing. Porous glass specimens containing “designed” porosity are shown to be very useful as model material in a variety of applications. In this paper model porous glasses are analysed by means of a microstructure-based numerical model (OOF) adapted to predict crack-pore interactions. The suitability of the porous glasses to be used as reference porous brittle materials for mechanical tests is illustrated by measurements of Young's modulus and hardness using instrumented indentation technique.