Fabrication and properties of erbium oxide

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Description

Erbium oxide (Er{sub 2}O{sub 3}) is a rare earth oxide of interest because of its chemical and thermal stability and high melting point, 2,430 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 (1,500--1,800 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 ... continued below

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10 p.

Creation Information

Neuman, A.; Platero, M.; Romero, R.; McClellan, K. J. & Petrovic, J. J. March 1997.

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Description

Erbium oxide (Er{sub 2}O{sub 3}) is a rare earth oxide of interest because of its chemical and thermal stability and high melting point, 2,430 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 (1,500--1,800 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.

Physical Description

10 p.

Notes

INIS; OSTI as DE97003395

Source

  • 21. annual conference and expo on composites, advanced cermics, materials and structures, Cocoa Beach, FL (United States), 12-16 Jan 1997

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  • Other: DE97003395
  • Report No.: LA-UR--97-71
  • Report No.: CONF-970111--4
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/446369 | External Link
  • Office of Scientific & Technical Information Report Number: 446369
  • Archival Resource Key: ark:/67531/metadc674494

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 1997

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 29, 2016, 3:04 p.m.

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Neuman, A.; Platero, M.; Romero, R.; McClellan, K. J. & Petrovic, J. J. Fabrication and properties of erbium oxide, report, March 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc674494/: accessed April 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.