- Under Task I, irradiation testing of Capsule UNC-3-1 was resumed in the ETR and is scheduled for completion in January 1983. Under Task II, thermal expansion determinations of uranium carbide were delayed after the apparatus was found defective. The equipment was repnired and tests are being resumed. Thermal conductivity tests are awaiting the release by the AEC of a subcontract to another laboratory. The apparatus for determining hot hardness of uranium carbide is being checked out. Irradiation test specimens of uranium carbide are still being irradiated in MTR. Capsules UNC-1-2 and UNC-1-3 will be removed by the end of October after receiving 15,000 Mwd/ton U. Capsule UNC-1-1 will remain in MTR until a burnup of 30,000 Mwd plus or minus ton is achieved. This is currently estimated to occur in July 1963. Examination of cast uranium carbide, exposed for a year under varied conditions, indicated satisfactory resistance of 4.5 and 4.7 wt.% carbon material to corrosion by laboratory air. Laboratory air caused transverse cracking of 5.3 wt.% carbon specimens after five months. Uranium carbide specimens stored in vacuo showed some surface attack and slight pitting but no cracking. Carbon content of these specimens did not appear to have any effect on corrosion behavior. (auth)
- Report Numbers:
- Other Subject(s):
- U.S. Atomic Energy Commission depository collection.
- DOE contract number: AT(30-1)-2374
NSA number: NSA-17-011106
OSTI Identifier 4718329
Research organization: United Nuclear Corp. Development Div., White Plains, N.Y.
View MARC record | catkey: 42519082