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The effect of polyacrylic acid on iron oxides formed on steam generator tubes and on metallic copper present in pressurized water reactors

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Academic year: 2021

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Figure 1 : (a) Schematic layout of the experimental device (SOZIE) for thermodynamic and kinetic  measurements in PWR physicochemical conditions; (b) photograph of the device
Figure 2 : (a) X-ray diffraction pattern of copper shavings before interaction with PAA, JCPDS data for  metallic copper (Cu (ref) ) and for copper oxide (Cu 2 O (ref) ) (b) X-ray diffraction pattern of copper shavings after
Figure 3 : (a) X-ray diffraction pattern of the tested magnetite powder before interaction with PAA, JCPDS data  for magnetite (Fe 3 O 4  in red) and for hematite (Fe 2 O 3  in green) (b) X-ray diffraction pattern of the tested
Figure 4 gathers the results of this study and those from D’Angelo et al. [6] who found a linear law between the  iron concentration and the one of PAA after interaction of PAA (between 0.1 × 10 -3  g.kg -1  and 10 × 10 -3  g.kg -1 )  and with iron oxides
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