The solubilities of iron in samples treated with various oxygen precipitation treatments were compared. The solubility of iron was reduced by almost two orders of magnitude in samples containing low-temperature oxygen precipitates. It is suggested that a new phase forms, probably an oxygen-metal rich compound that is more stable than the FeSi2 silicide. This study suggests dramatic improvements for the efficiency of gettering processes.
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Colas et al. (1986) studied this question.
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