Metal-ceramic composites for hostile environment applications

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Description

The authors have developed a new metal-ceramic composite made from vanadium metal (V) and a non-stoichiometric magnesio-aluminate spinel ceramic. Three vanadium-spinel compositions, 40-60, 50-50, and 60-40 (by volume) were prepared by hot pressing mixtures of commercial powders. The properties of these composites were determined by measuring coefficient of thermal expansion, hardness, elastic constants, and fracture toughness. Radiation damage studies were performed on 50-50 vanadium-spinel composite samples using 1.5 MeV Xe{sup +} ions, with samples held both at 20 K and at room temperature. Room temperature irradiated samples exhibited very little change in microstructure, indicating that this composite has radiation damage ... continued below

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14 p.

Creation Information

Uestuendag, E.; Sickafus, K.; He, Y.; Schwarz, R.B.; Panda, P.C. & Raj, R. July 1, 1996.

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Description

The authors have developed a new metal-ceramic composite made from vanadium metal (V) and a non-stoichiometric magnesio-aluminate spinel ceramic. Three vanadium-spinel compositions, 40-60, 50-50, and 60-40 (by volume) were prepared by hot pressing mixtures of commercial powders. The properties of these composites were determined by measuring coefficient of thermal expansion, hardness, elastic constants, and fracture toughness. Radiation damage studies were performed on 50-50 vanadium-spinel composite samples using 1.5 MeV Xe{sup +} ions, with samples held both at 20 K and at room temperature. Room temperature irradiated samples exhibited very little change in microstructure, indicating that this composite has radiation damage resistance qualities such as resistance to volume swelling under particle bombardment. This feature, as well as other properties reviewed in this paper, suggest that vanadium-spinel composites are attractive structural materials for fusion reactor design.

Physical Description

14 p.

Notes

INIS; OSTI as DE96012452

Source

  • 98. annual meeting of the American Ceramic Society, Cincinnati, OH (United States), 25 Apr 1996

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  • Other: DE96012452
  • Report No.: LA-UR--96-1988
  • Report No.: CONF-960469--2
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/286278 | External Link
  • Office of Scientific & Technical Information Report Number: 286278
  • Archival Resource Key: ark:/67531/metadc672939

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  • July 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Feb. 29, 2016, 4:12 p.m.

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Uestuendag, E.; Sickafus, K.; He, Y.; Schwarz, R.B.; Panda, P.C. & Raj, R. Metal-ceramic composites for hostile environment applications, report, July 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc672939/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.