Published August 1989 | Version v1
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Electron microscopy of phase and microstructure development in aluminum silicate ceramics for the immobilization of transuranium element containing wastes

Creators

Description

At the Institute for Nuclear Waste Technology (INE) with the Karlsruhe Nuclear Research Center (KfK) ceramic materials were evaluated as matrices for the solidification of radioactive alpha-bearing wastes. A suitable ceramic material, KAB 78, which is prepared from the raw materials kaolin, bentonite, and corundum, was examined with and without waste-simulating oxides. Applied methods were X-ray powder diffraction, scanning electron microscopy and transmission electron microscopy, both in combination with energy dispersive X-ray microanalysis. The effects of the sintering conditions and of the waste materials' nature are revealed and discussed. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Die speziell zur Verfestigung transuranelementhaltiger radioaktiver Abfaelle entwickelte Keramik KAB 78, hergestellt aus den Rohstoffen Kaolin, Bentonit und Korund, wurde mit und ohne Abfall-(simulat)-beladung untersucht. Angewandte Methoden waren Roentgen-Pulverdiffraktometrie, Rasterelektronenmikroskopie mit energiedispersiver Roentgenmikroanalyse (REM/EDA) und Transmissionselektronenmikroskopie mit energiedispersiver Roentgenmikroanalyse (TEM/EDA). Die Einfluesse der Sinterparameter und der Art des zugesetzten Abfalls auf Phasenbestand und Gefuege werden nachgewiesen und diskutiert. (orig.)

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Additional details

Additional titles

Original title (German)
Elektronenmikroskopische Untersuchungen zur Phasen- und Gefuegeentwicklung in einer aluminiumsilikatischen Keramik zur Fixierung transuranelementhaltiger Abfaelle

Publishing Information

Imprint Pagination
171 p.
Report number
KFK--4628

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
21013625
Subject category
S36: MATERIALS SCIENCE; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
ALPHA-BEARING WASTES; CERAMICS; CHEMICAL REACTION KINETICS; ELECTRON MICROSCOPY; MICROSTRUCTURE; MULLITE; PHASE STUDIES; SOLIDIFICATION; TRANSURANIUM ELEMENTS; WASTE FORMS; X-RAY DIFFRACTION
Descriptors DEC
COHERENT SCATTERING; CRYSTAL STRUCTURE; DIFFRACTION; ELEMENTS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; KINETICS; MATERIALS; MICROSCOPY; MINERALS; OXIDE MINERALS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; REACTION KINETICS; SCATTERING; WASTES

Optional Information

Secondary number(s)
PWA--52/89.