Acoustic emission during leaching of Pr[sub 6]O[sub 11] in dilute acetic acid
Journal Article
·
· Journal of Solid State Chemistry; (United States)
- CNRS-UPR, Meudon Cedex (France)
- CETIM, Cedex (France)
In the course of the selective dissolution (leaching) of an intermediate praseodymium oxide, Pr[sub 6]O[sub 11], in contact with a dilute acetic acid solution, it is possible to record an ultrasonic acoustic emission. When the chemical reaction is taking place the solid material loses Pr[sup 3+] ions to the solution and a residue of PrO[sub 2] remains. Over the course of the experiment (nearly 12 hr) various kinds of signals were recorded. The most important and intense response occurred nearly 8 hr after the beginning of the process. The acoustic emission is tentatively explained in terms of the dissolution of parts of the grains with a high amount of Pr[sup 3+] ions, and/or discohesion or breaking of inclusions.
- OSTI ID:
- 7274215
- Journal Information:
- Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 107:1; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ACOUSTIC DETECTION
ACOUSTIC MEASUREMENTS
CHALCOGENIDES
CHARGED PARTICLE DETECTION
DETECTION
DISSOLUTION
LEACHING
OXIDES
OXYGEN COMPOUNDS
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RADIATION DETECTION
RARE EARTH COMPOUNDS
SEPARATION PROCESSES
SOUND WAVES
ULTRASONIC WAVES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ACOUSTIC DETECTION
ACOUSTIC MEASUREMENTS
CHALCOGENIDES
CHARGED PARTICLE DETECTION
DETECTION
DISSOLUTION
LEACHING
OXIDES
OXYGEN COMPOUNDS
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RADIATION DETECTION
RARE EARTH COMPOUNDS
SEPARATION PROCESSES
SOUND WAVES
ULTRASONIC WAVES