Chapter 17. Mechanical Behavior of Erbium Oxide Single Crystals

  1. Mrityunjay Singh and
  2. Todd Jessen
  1. J.J. Petrovic,
  2. A.A. Sharif,
  3. A.M. Kukla,
  4. R.S. Romero,
  5. D. Mendoza and
  6. F.M. Pitek

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294680.ch17

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

How to Cite

Petrovic, J.J., Sharif, A.A., Kukla, A.M., Romero, R.S., Mendoza, D. and Pitek, F.M. (2001) Mechanical Behavior of Erbium Oxide Single Crystals, in 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3 (eds M. Singh and T. Jessen), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294680.ch17

Author Information

  1. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2001

ISBN Information

Print ISBN: 9780470375730

Online ISBN: 9780470294680

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Keywords:

  • macroscopic;
  • oxygen;
  • atmosphere;
  • microhardness;
  • crystallographic

Summary

Er2O3 single crystals were synthesized by optical floating zone single crystal techniques. The average room temperature hardness of these crystals was 7 GPa, while the average room temperature indentation fracture toughness was 0.86 MPa m1\2. Hardness decreased with increasing temperature, while fracture toughness increased at 1200 °C and above. Cleavage planes observed in erbia were {110} and {111}. Macroscopic compressive deformation occurred in erbia at 1640 °C. The observed slip system was {110}<111>.