Published 1989 | Version v1
Report Open

Formation conditions of monolithic desublimates and cryodeposits of uranium and tungsten hexafluorides

Creators

Description

A study was made on the dependence of thermal conductivity of uranium hexafluoride desublimates on the difference between saturation and desublimation temperatures and on hexafluoride content in gas mixture. It is shown that desublimates of different types are formed depending on these parameters: dense semitransparent monolithitic desublimate and porous frosted cryodeposit. Thermal conductivity of monolithitic desublimates of uranium and tungsten hexafluorides was measured and its dependence on temperature was investigated. Thermal conductivity is inversly proportional to temperature in 84-135 K range. 14 refs.; 5 figs

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Additional titles

Original title (Russian)
Условия образования монолитных десублиматов и криоосадков гексафторидов урана и вольфрама

Publishing Information

Imprint Pagination
12 p.
Report number
NIIAR--14-777

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
22041862
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CONDENSATES; DENSITY; LOW TEMPERATURE; PARTIAL PRESSURE; PRECIPITATION; SUBLIMATION; TEMPERATURE DEPENDENCE; TEXTURE; THERMAL CONDUCTIVITY; TUNGSTEN FLUORIDES; URANIUM HEXAFLUORIDE; VAPOR CONDENSATION
Descriptors DEC
ACTINIDE COMPOUNDS; EVAPORATION; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; SEPARATION PROCESSES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS; URANIUM COMPOUNDS; URANIUM FLUORIDES