JRP CALL information
Supported By

European Commission

Short description of the work

Four Pu-bearing borosilicate glasses have been synthesized in the laboratories of the JRC-ITU. Inactive glass frit, representing the VEK glass composition and already prepared in INE laboratories, was mixed in ITU with different amounts of PuO2, obtaining glass samples with PuO2 concentrations from 0.2 wt% to 1.5 wt%. Melting and annealing in a high-temperature furnace at 1200 °C (600 °C) for 3 h (3 h) was performed, as well as all the other manipulations, in a N2-inertgas glovebox. Removal of the cold glass material from the Pt/Rh took place without applying any mechanical force. The samples have been partly crushed for further investigations. Powder will be analysed by X-ray powder diffraction (XRD) to verify amorphous nature of the samples. From each of the four samples, two fragments have been embedded in resin for cutting and polishing, respectively. One set of fragments will be investigated at INE-BL by high energy resolution X-ray absorption near edge spectroscopy (HR-XANES), the other set will be removed from the resin and prepared for leaching experiments in reducing conditions. As-prepared glass fragments will be used for Raman, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis.

Main visitor contact data
Name: Sebastian Bahl
Organisation: INE - KIT


JRP Identification
JRP nr: TALI-C03-01
JRP title: Pu VEK Glass characterization and behaviour
JRP scope: Scope 3: Actinide materials

Visited Associated Pooled Facility
Visited APF during the stay: JRC-ITU - Labs & Hot-cells
Name of the APF Contact Person: Joseph Somers

Other APF and organisation involved in the JRP
Other organisations involved:
Other APF involved in the project:

Description of the work done at the associated pooled facility
Start date of the stay: 5/2/2014
End date of the stay: 5/6/2014
Quantity of access: 5
Access Unit: Days