Bibliographic Citation
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Title | HEAT CAPACITY OF PLUTONIUM DIOXIDE BELOW 320 K |
Creator/Author | Sandenaw, T.A. |
Publication Date | 1961 Jan 01 |
OSTI Identifier | OSTI ID: 4749765 |
Report Number(s) | TID-15183;LADC-5260; LADC-5260 |
Resource Type | Technical Report |
Research Org | Los Alamos Scientific Lab., N. Mex. |
Subject | CHEMISTRY; AIR; COOLING; EQUATIONS; HELIUM; LIQUIDS; LOW TEMPERATURE; NEPTUNIUM OXIDES; PLUTONIUM OXIDES; SPECIFIC HEAT; TABLES; TEMPERATURE; THERMODYNAMICS; THORIUM OXIDES; URANIUM DIOXIDE |
Description/Abstract | The low temperature heat capacity behavior of PuO/sub 2/ was found to be anomalous and irreproducible, changing slightly after every one of 7 liquid He coolings. Data obtained from a second series of liquid He coolings, made after refiring 3 or 4 original PuO/sub 2/ wafers in air, were consistent with the last run of the first series. The final low temperature heat capacity vs temperature curve was more like that reported for ThO/sup 2/ than it was for similar curves reported for UO/sup 2/ and NpO/sub 2/. Least-squares equations relating heat capacity and temperature are given for 3 temperature regions. Calculated values of the energy density of states and theta /sub D/ are shown and values of entropy and enthalpy are listed for several temperatures. (auth) |
Language | English |
Format | Pages: 25 |
System Entry Date | 2001 Jun 03 |
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