Abstract
This work focused on granite-SUS pipe-dry steam interaction in the presence of copper. Three types of hydrothermal experiments were conducted: 1) SUS-Cu-granite, 2) SUS-Cu, 3) SUS-granite. It was found that a high protective amorphous AlSi1.6O4 layer (thickness about 5 μm) formed on the supporting pipe surface only in the case of SUS-Cu-granite interaction. The formed layer was characterized by X-ray diffraction (XRD) techniques and scanning electron microscopy (SEM) equipped with an energy dispersive X-ray (EDX) device. According to kinetics data this layer was confirmed to have highly protective properties.
