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Title: Thermal and Physical Properties of Plutonium Dioxide Produced from the Oxidation of Metal: a Data Summary

The ARIES Program at the Los Alamos National Laboratory removes plutonium metal from decommissioned nuclear weapons, and converts it to plutonium dioxide in a specially-designed Direct Metal Oxidation furnace. The plutonium dioxide is analyzed for specific surface area, particle size distribution, and moisture content. The purpose of these analyses is to certify that the plutonium dioxide powder meets or exceeds the specifications of the end-user, and the specifications for the packaging and transport of nuclear materials. Analytical results from plutonium dioxide from ARIES development activities, from ARIES production activities, from muffle furnace oxidation of metal, and from metal that was oxidized over a lengthy time interval in air at room temperature, are presented. The processes studied produce plutonium dioxide powder with distinct differences in measured properties, indicating the significant influence of oxidation conditions on physical properties.
Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
1114456
Report Number(s):
LA-UR--14-20201
TRN: US1500364
DOE Contract Number:
AC52-06NA25396
Resource Type:
Technical Report
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 36 MATERIALS SCIENCE; PLUTONIUM; PLUTONIUM DIOXIDE; SPECIFIC SURFACE AREA; OXIDATION; TEMPERATURE RANGE 0273-0400 K; AIR; NUCLEAR WEAPONS; PARTICLE SIZE; POWDERS; SPECIFICATIONS; DESIGN; DISTRIBUTION; MOISTURE; PACKAGING; TRANSPORT; THERMAL GRAVIMETRIC ANALYSIS THERMAL ANALYSIS; OFFGAS MASS SPECTROMETRY; 3013 CONTAINERS; PARTICLE SIZE ANALYSIS; DIRECT METAL OXIDATION