Chapter 5. Fabrication and Properties of Erbium Oxide

  1. J. P. Singh
  1. A. Neuman,
  2. M. Platero,
  3. R. Romero,
  4. K. J. Mcclellan and
  5. J. J. Petrovic

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294444.ch5

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

How to Cite

Neuman, A., Platero, M., Romero, R., Mcclellan, K. J. and Petrovic, J. J. (2008) Fabrication and Properties of Erbium Oxide, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294444.ch5

Author Information

  1. Los Alamos National Laboratory, MST-4, Los Alamos, NM 87544

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375532

Online ISBN: 9780470294444

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Keywords:

  • densification;
  • mechanical properties;
  • indentation;
  • microstructure;
  • hexagonal

Summary

Erbium oxide (Er2O3) is a rare earth oxide of interest because of its chemical and thermal stability and high melting point, 2430°C. However there is relatively little information available regarding the relation between the structure and the mechanical properties of this material. A densification study of polycrystalline erbium oxide powders is reported here. Erbium oxide pellets were uniaxially pressed (40-280 MPa) and sintered (1500-1800°C) in order to obtain density data for as received commercial powders. In addition, the particle size and distribution of as-received powders were varied by milling and the effects on densification were studied. The powders were characterized for particle size, phase and impurity content and surface area. The mechanical properties of high density sintered erbium oxide bodies were characterized using indentation hardness and toughness as a function of temperature and microstructure. Relations between the microstructure and mechanical properties are described.