Sample holder assembly for effective thermal conductivity measurement of pebble-bed in laser flash apparatus
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United States of America Patent
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Feb 23, 2021
Grant Date -
Oct 3, 2019
app pub date -
May 18, 2018
filing date -
Apr 3, 2018
priority date (Note) -
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Abstract
The present disclosure provides a sample holder assembly for a laser flash apparatus for measuring a thermal conductivity of a pebble-bed, the assembly comprising: a tubular sample container configured to be mounted on a sample carrier tube for the laser flash apparatus, wherein the sample container has open top and bottom; a bottom disc disposed in the sample container to block the open bottom of the sample container and configured for delivering a laser from a laser flash unit of the apparatus to a pebble-bed; the pebble-bed packed on the bottom disc to a predetermined thickness; and a top disc disposed on the pebble-bed and in the sample container to block the open top of the sample container and configured for receiving heat from the pebble-bed to transfer the heat upward.
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