Chapter 3. Spinel Formation in the Nickel-Alumina System

  1. John B. Wachtman Jr.
  1. H. S. Betrabet1,2,
  2. S. N. S. Reddy1,2,
  3. S. Purushothaman1,2 and
  4. I. Reimanis1,2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470312568.ch3

Proceedings of the International Forum on Structural Ceramics Joining: Ceramic Engineering and Science Proceedings, Volume 10, Issue 11/12

Proceedings of the International Forum on Structural Ceramics Joining: Ceramic Engineering and Science Proceedings, Volume 10, Issue 11/12

How to Cite

Betrabet, H. S., Reddy, S. N. S., Purushothaman, S. and Reimanis, I. (1989) Spinel Formation in the Nickel-Alumina System, in Proceedings of the International Forum on Structural Ceramics Joining: Ceramic Engineering and Science Proceedings, Volume 10, Issue 11/12 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470312568.ch3

Author Information

  1. 1

    IBM T.J. Watson Research Center P.O. Box 218 Yorktown Heights, NY 10598

  2. 2

    IBM - General Technology Division Hopewell Junction, NY 12533

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374887

Online ISBN: 9780470312568

SEARCH

Keywords:

  • metal-ceramic couples;
  • spinel phase;
  • nickel-alumina interface;
  • morphology;
  • epitaxiully

Summary

Nickel-alumina metal-ceramic couples were heat treated under controlled partial pressure of oxygen to form a spinel phase at the interface. The oxygen partial pressure was chosen such that pure NiO was unstable and only the spinel phase was stable at the nickel-alumina interface. The morphology of the spinel phase at the interface was studied by examining cross sectional samples using transmission electron microscopy (TEM). The spinel was found to grow epitaxially on the single crystal alumina substrate. The orientation relationship between the spinel and the substrate was found to be controlled by the substrate orientation. The kinetics of spinel formation is briefly examined and will be discussed qualitatively.