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Surfaces and Interfaces in Ceramic and Ceramic — Metal Systems pp 317–322Cite as

Influence of Grain Boundary Silica Impurity on Alumina Toughness

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Part of the book series: Materials Science Research ((MSR,volume 14))

Abstract

In a series of previous reports the effect of silica impurity on aggregation state and on electrophoretic, pressing, filtering and sintering behavior on alumina powders has been studied. The results obtained showed that the silica surface impurity plays an important role in the ceramic processing of powders by (a) decreasing pH values of the isoelectric point (i. e. p.), which affects the aggregation state of the powder, and (b) decreasing the compactability and the activation energy for the initial stage of sintering.

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References

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Author information

Authors and Affiliations

  1. Instituto de Ceramica y Vidrio, Madrid, Spain

    J. S. Moya

  2. Materials and Molecular Research Division, Lawrence Berkeley Laboratory and Department of Materials Science and Mineral Engineering, University of California, Berkeley, California, USA

    W. M. Kriven & J. A. Pask

Authors
  1. J. S. Moya
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  2. W. M. Kriven
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  3. J. A. Pask
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Editor information

Editors and Affiliations

  1. The Lawrence Berkeley Laboratory, University of California, Berkeley, California, USA

    Joseph Pask  & Anthony Evans  & 

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© 1981 Plenum Press, New York

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Moya, J.S., Kriven, W.M., Pask, J.A. (1981). Influence of Grain Boundary Silica Impurity on Alumina Toughness. In: Pask, J., Evans, A. (eds) Surfaces and Interfaces in Ceramic and Ceramic — Metal Systems. Materials Science Research, vol 14. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-3947-2_27

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  • DOI: https://doi.org/10.1007/978-1-4684-3947-2_27

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-3949-6

  • Online ISBN: 978-1-4684-3947-2

  • eBook Packages: Springer Book Archive

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