COMPATIBILITY OF ZIRCONIUM HYDRIDE AND CARBON DIOXIDE

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The stability of unclad zirconium hydride was investigated as a reactor moderator in carbon dioxide coolant. Two ranges of hydride were tested, an alpha- plus deltaphase hydride (ZrH/sub 0.9 plus or minus 0.2/) and a delta-phase hydride (ZrH/sub 1.5/). The delta-phase hydride exhibited excellent dimensional stability, but suffered as great as 20% hydrogen loss at 1200 deg F, together with severe corrosion. The alphaplus delta-phase hydride swelled and warped in a temperature gradient but did not lose much hydrogen and did not corrode severely even at 1200 deg F. The results indicate that zirconium hydride could not be used as ... continued below

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Pages: 19

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Shoemaker, H.E. July 1, 1959.

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Description

The stability of unclad zirconium hydride was investigated as a reactor moderator in carbon dioxide coolant. Two ranges of hydride were tested, an alpha- plus deltaphase hydride (ZrH/sub 0.9 plus or minus 0.2/) and a delta-phase hydride (ZrH/sub 1.5/). The delta-phase hydride exhibited excellent dimensional stability, but suffered as great as 20% hydrogen loss at 1200 deg F, together with severe corrosion. The alphaplus delta-phase hydride swelled and warped in a temperature gradient but did not lose much hydrogen and did not corrode severely even at 1200 deg F. The results indicate that zirconium hydride could not be used as unclad moderator in a carbon dioxide atmosphere in the temperature range desired for the Maritime Gas Cooled Reactor. (auth)

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Pages: 19

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: GA-849
  • Grant Number: AT(04-3)-187
  • DOI: 10.2172/4210987 | External Link
  • Office of Scientific & Technical Information Report Number: 4210987
  • Archival Resource Key: ark:/67531/metadc1020241

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  • July 1, 1959

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 20, 2017, 3:29 p.m.

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Shoemaker, H.E. COMPATIBILITY OF ZIRCONIUM HYDRIDE AND CARBON DIOXIDE, report, July 1, 1959; United States. (digital.library.unt.edu/ark:/67531/metadc1020241/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.