Investigations of the reduction of NiAl{sub 2}O{sub 4}. 2: X-ray diffraction studies

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The volume shrinkage that accompanies the reduction of NiAl{sub 2}O{sub 4} to a metal-ceramic composite of nickel and alumina leads to residual stress buildup. The authors have attempted to utilize these stresses to temper a ceramic component by placing it under compression. To prove the concept, they produced model specimens which they investigated using X-ray diffraction. Employing the conventional d vs. sin{sup 2} {Psi} method to map surface stresses, the results obtained from these measurements are presented together with finite element calculation predictions used to interpret experimental stress data.

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9 p.

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Clausen, B.; Rangaswamy, P.; Bourke, M.A.M.; Uestuendag, E.; Sass, S.L. & Barbieri, T.J. September 1, 1998.

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Description

The volume shrinkage that accompanies the reduction of NiAl{sub 2}O{sub 4} to a metal-ceramic composite of nickel and alumina leads to residual stress buildup. The authors have attempted to utilize these stresses to temper a ceramic component by placing it under compression. To prove the concept, they produced model specimens which they investigated using X-ray diffraction. Employing the conventional d vs. sin{sup 2} {Psi} method to map surface stresses, the results obtained from these measurements are presented together with finite element calculation predictions used to interpret experimental stress data.

Physical Description

9 p.

Notes

OSTI as DE98006342

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  • Engineering Ceramics Division conference and exposition on composites, advanced ceramics, materials and structures, Cocoa Beach, FL (United States), 20 Jan 1998

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  • Other: DE98006342
  • Report No.: LA-UR--98-1197
  • Report No.: CONF-980110--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/296729 | External Link
  • Office of Scientific & Technical Information Report Number: 296729
  • Archival Resource Key: ark:/67531/metadc679273

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  • September 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • May 20, 2016, 2:53 p.m.

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Clausen, B.; Rangaswamy, P.; Bourke, M.A.M.; Uestuendag, E.; Sass, S.L. & Barbieri, T.J. Investigations of the reduction of NiAl{sub 2}O{sub 4}. 2: X-ray diffraction studies, report, September 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc679273/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.