The EPMA, LA-ICP-MS and ICP-OES study of corrosion of structural materials for a nuclear reactor cooling circuit by molten fluoride salt treatment

Inductively Coupled Plasma Mass Spectrometry

“…96 Vaculovic et al used LA-ICP-SFMS to study corrosion processes as a result of molten fluoride salt treatment of structural materials of a nuclear reactor cooling circuit. 97 LA with ICP-SFMS was used by Latkoczy and Ghislain to analyse the elemental distribution of both major and trace elements in an industrial multiphase magnesium-based alloy. 98 High mass resolution was further applied to assess the purity of TlBr single crystals, which are used as detectors in space technology.…”

Elemental mapping of structural materials for a nuclear reactor by means of LA-ICP-MS

“…Contrary to our previous work 22 we have now focused the study on nickel-based materials which seem to be the most promising for MSR. 1,12 Nickel is covered with a compact layer of NiF 2 in molten fluoride salts which protects the material against further attack.…”

“…However, the lateral resolution of LA-ICP-MS with a laser spot diameter of 25 mm was not sufficiently adequate in comparison with the depth of the affected zones (100-200 mm). 22,23 The aim of this study consists in the development of an LA-ICP-MS quantitative elemental 2D-mapping procedure for the description of composition changes throughout the depth of the corrosion-affected layer formed by the action of the molten mixture of LiF and NaF at 680 C for 1000 h.…”

“…The corrosion resistance of elements to the action of molten fluoride salts increases with their values of Gibbs free energy of fluoride formation, which are highest for the fluorides of Mo, Co, Ni, and W. 1 Consequently, a smaller depth of the layer affected by corrosion was expected for nickel-based materials in comparison to those studied in ref. 22,23 and thus better resolution of mapping was required. Therefore, instead of the single-line raster of spots with the 25 mm diameter used in ref.…”

Inductively coupled plasma- and glow discharge plasma-sector field mass spectrometry : Part II. Applications

“…121 Vaculovic et al used LA-ICP-SFMS to study corrosion processes by molten fluoride salt treatment of structural materials of a nuclear reactor cooling circuit. 122 LA with ICP-SFMS were used by Latkoczy and Ghislain to analyze the elemental distribution of both major and trace elements in an industrial multi-phase magnesium-based alloy. 123 High mass resolution was further applied in order to assess the purity of TlBr single crystals, which are used as detectors in space technology.…”