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APPLICATIONS OF ULTRASONIC ENERGY. TASK 2: ULTRASONIC METAL AND CERAMIC POWDER PROCESSING. TASK 3: ULTRASONIC INSTRUMENTATION. Progress Report No. 26 Covering Period February 1, 1961 to March 31, 1961

Technical Report ·
OSTI ID:4013096
Ultrasonic Metal and Ceramic Powder Processing. Ultrasonic activation of slip-casting molds permits the casting of thin fuel-plate configurations. Slips containing two materials of widely differing densities, stainless steel and alumina, were successfully cast with unidirectional molds. Ultrasonically activated molds are filled completely while nonultrasonic control tests resulted in less than 10% filling. The stainless steel particles remain uniformly distributed throughout the specimens produced in the ultrasonically activated mold while severe settling and particle segregation occurs in the nonultrasonic control samples. The ultrasonic axial activation of a 24-lb tamp rod and the axial activation of the thin-walled tubing during filling of 1.5- mu ceramic grade UO/sub 2/ have produced compacts with a 6.09 g/cc (55.6% theoretical) density as compared with 5.79 g/cc (52.9% theoretical) density obtained by using a157-lb static tamp load. Ultrasonic Instrumentation. Readout equipment development to increase sensitivity of slurry particle size and concentration measurements was carried out. Readily detectable differences were observed between the acoustic power delivered into foams of various water content. Location of an air/foam and a water/foam interface in nuclear reactor systems appears to be feasible. (auth)
Research Organization:
Aeroprojects Inc., West Chester, Penna.
NSA Number:
NSA-15-025736
OSTI ID:
4013096
Report Number(s):
NYO-9582
Country of Publication:
United States
Language:
English