Acoustic emission from thermal-gradient cracks in UO$sub 2$

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A feasibility study has been conducted to evaluate the potential use of acoustic emission to monitor thermal-shock damage in direct electrical heating of UO$sub 2$ pellets. In the apparatus used for the present tests, two acoustic- emission sensors were placed on extensions of the upper and lower electrical feedthroughs. Commercially available equipment was used to accumulate acoustic- emission data. The accumulation of events displayed on a cathode-ray-tube screen indicates the total number of acoustic-emission events at a particular location within the pellet stack. These tests have indicated that acoustic emission can be used to monitor thermal-shock damage in UO$sub 2$ ... continued below

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Pages: 23

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Kennedy, C.R.; Kupperman, D.S. & Wrona, B.J. January 1, 1975.

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Description

A feasibility study has been conducted to evaluate the potential use of acoustic emission to monitor thermal-shock damage in direct electrical heating of UO$sub 2$ pellets. In the apparatus used for the present tests, two acoustic- emission sensors were placed on extensions of the upper and lower electrical feedthroughs. Commercially available equipment was used to accumulate acoustic- emission data. The accumulation of events displayed on a cathode-ray-tube screen indicates the total number of acoustic-emission events at a particular location within the pellet stack. These tests have indicated that acoustic emission can be used to monitor thermal-shock damage in UO$sub 2$ pellets subjected to direct- electrical heating. 8 references. (auth)

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Pages: 23

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  • Conference of the American Society for Nondestructive Testing, Inc., Atlanta, Georgia, USA, 13 Oct 1975

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  • Report No.: CONF-751016--3
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 4164652
  • Archival Resource Key: ark:/67531/metadc867378

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Sept. 20, 2016, 1:45 p.m.

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Kennedy, C.R.; Kupperman, D.S. & Wrona, B.J. Acoustic emission from thermal-gradient cracks in UO$sub 2$, article, January 1, 1975; Illinois. (digital.library.unt.edu/ark:/67531/metadc867378/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.