Abstract
SO2 labeled with35S radioisotope was used to study the diffusion of sulfur in scales growing on nickel in sulfur-dioxide atmosphere at 873 K. It was observed that in addition to the inward molecular transport of SO2, outward diffusion of sulfur also occurred. This diffusion occurred mainly through the grain boundaries of the scale [DG873=3×10−7cm2/s]. The liberation of sulfur inside the scale was caused by the reaction of Ni3S2 with oxygen or with sulfur dioxide.
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Gilewicz-Wolter, J., Ciechanowski, M. Transport of sulfur in the scale growing on nickel in sulfur dioxide atmosphere at 873 K. Oxid Met 34, 151–159 (1990). https://doi.org/10.1007/BF00664343
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DOI: https://doi.org/10.1007/BF00664343