General-Purpose Heat Source: Research and development program: Cold-Process Verification Test Series

Abstract

Los Alamos National Laboratory is operated by the University ofCal@mia fur the United States Department of Energy under contract W-7405-ENG36.

Properties of Hafnium Oxide with Respect to Its Use as a Simulant for 238PuO2 in Safety Studies

“…The typical number of cracks range from 0 to 3 at this impact velocity. (26) The deformation of the clad is comparable to that observed in previous simulant-fueled, bare-clad impact tests. The maximum percent strain varies between 12 to 16 axially, and diametrically 6 to 18 in the vent cup, 6 to 18 in the girth weld area, and 5 to 9 in the shield cup.…”

“…This has not been observed in other urania-fueled, bareclad impact tests. (26) The total number of observed cracks is also atypical. The typical number of cracks range from 0 to 3 at this impact velocity.…”

“…The maximum percent strain varies between 12 to 16 axially, and diametrically 6 to 18 in the vent cup, 6 to 18 in the girth weld area, and 5 to 9 in the shield cup. (26) There were three transverse cracks on the impact face. Two of the transverse cracks were located on the edges of the impact face on the vent-cup radius and the third on the shield-cup radius.…”

“…(26) The deformation, particularly in the axial engineering strain, is very large. Typical maximum axial strains measure no greater than 17%, but the strain of the impacted clad is greater than 20%.…”

General-purpose heat source: Research and development program. Radioisotope thermoelectric generator impact tests: RTG-1 and RTG-2

“…However, the magnitude of these weight fractions are very small in comparison to the weight fractions measured in the CPV tests (two to 9.2 times smaller). 15 2, and the other clads recovered from RTG-1 and RTG-2. The fraction of urania recovered from SC0107 in the +5600 mm range is almost twice that recovered from SC0076, SC0092, and SC0096.…”