Abstract

This work is a study of theL⇄S andS⇄S equilibria in the ternary system Al-Zn-Sn. The diagram has been established by an isopleth cutting method using coupled direct and differential thermal analysis and an electron probe microanalyser. This study has permitted: confirmation of the existence of invariant ternary reactions suggested in the literature; demonstration of the existence, shape and limits of the SSα′ solid solution presenting tin retrograde solubility; determination of the critical point temperature of the monovariant liquid curve conjugated toSSα andSSα′ solids (446‡) rich in aluminium,

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