Fragmentation of molten core material by sodium. [LMFBR]

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A series of scoping experiments was performed to study the fragmentation of prototypic high temperature melts in sodium. The quantity of melt involved was at least one order of magnitude larger than previous experiments. Two modes of contact were used: melt streaming into sodium and sodium into melt. The average bulk fragment size distribution was found to be in the range of previous data and the average size distribution was found to be insensitive to mode of contact. SEM studies showed that the metal component typically fragmented in the molten phase while the oxide component fragmented in the solid phase. ... continued below

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Pages: 10

Creation Information

Chu, T.Y. January 1, 1982.

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Description

A series of scoping experiments was performed to study the fragmentation of prototypic high temperature melts in sodium. The quantity of melt involved was at least one order of magnitude larger than previous experiments. Two modes of contact were used: melt streaming into sodium and sodium into melt. The average bulk fragment size distribution was found to be in the range of previous data and the average size distribution was found to be insensitive to mode of contact. SEM studies showed that the metal component typically fragmented in the molten phase while the oxide component fragmented in the solid phase. For UO/sub 2/-ZrO/sub 2//stainless steel melts no sigificant spatial separation of the metal and oxide was observed. The fragment size distribution was stratified vertically in the debris bed in all cases. While the bulk fragment size showed generally consistent trends, the individual experiments were sufficiently different to cause different degrees of stratification in the debris bed. For the highly stratified beds the permeability can decrease by as much as a factor of 20 from the bottom to the top of the bed.

Physical Description

Pages: 10

Notes

NTIS, PC A02/MF A01.

Source

  • International topical meeting on LMFBR safety, Lyon, France, 18 Jul 1982

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  • Other: DE82018809
  • Report No.: SAND-82-0300C
  • Report No.: CONF-820704-10
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 5337120
  • Archival Resource Key: ark:/67531/metadc1065323

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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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  • January 1, 1982

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • May 18, 2018, 3:43 p.m.

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Chu, T.Y. Fragmentation of molten core material by sodium. [LMFBR], article, January 1, 1982; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1065323/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.