RECOVERY OF ELECTRICAL RESISTIVITY OF COLD WORKED THROIUM

Technical Report · Mon Nov 21 04:00:00 EST 1955

OSTI ID:4752790

Meechan, C J

A discussion of the annealing behavior of cold worked thorium and a comparison with the annealing of proton irradiated thorium are presented. Two distinct electrical resistivity recovery states were found in cold worked thorium in the range 80 to 560 deg K. The first is centered at 275 deg K where approximates 5% of the induced damage is recovered and the other is centered at approximates 485 deg K where approximates a 25% recovery is effected. Slow but continuous recovery was observed throughout the remainder of the temperature range. Approximately 60% of the induced damage had recovered after the anneal at 560 deg K. Comparing the results with those of the irradiated specimen, approximates 75% of the induced radiation damage recovers through the room temperature state, but only approximates 10% recovers in this range in the cold worked specimen. (H.G.G.)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• DOE Contract Number: AT(11-1)-GEN-8
• NSA Number: NSA-17-016651
• OSTI ID: 4752790
• Report Number(s): NAA-SR-Memo-1522
• Country of Publication: United States
• Language: English

Related Subjects

ANNEALING
COLD WORKING
ELECTRIC CONDUCTIVITY
IRRADIATION
METALS, CERAMICS, AND OTHER MATERIALS
PROTON BEAMS
RADIATION EFFECTS
RECOVERY
TEMPERATURE
THORIUM