NUCLEAR FUEL IN THE FORM OF A PELLET, WITH IMPROVED STRUCTURE
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United States of America Patent
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Issued Date -
Jun 17, 2010
app pub date -
May 13, 2008
filing date -
May 14, 2007
priority date (Note) -
Abandoned
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Abstract
A pellet including a nuclear fuel material for applications in reactors. The pellet has an elongated shape along an axis (z) and includes on an outer radial surface at least one privileged breaking area (R2) for promoting a breaking in a plane substantially perpendicular to the axis (z). During a temperature rise of the pellet, the pellet is broken along the privileged breaking areas into several fragments having a smaller slenderness ratio than that of the entire pellet, which contributes to lessen the stresses on the sheath housing such pellets.
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