On the Liquidus Surface and Reaction Scheme of the Ternary System Cu-Si-Ti

摘要

The ternary system Cu-Si-Ti was investigated using XRD, SEM-EDX, and DTA. The existence of two ternary phases τ_1-CuSiTi and τ_2-TiSi_(2-x)Cu_x as well as their crystal structures are confirmed. The isothermal section at 800℃ is corroborated. From DTA data of equilibrated alloys a reaction scheme linking the isotherm at 700℃ with the liquidus surface is derived. Using data on primary crystallisation of as cast alloys a projection of the liquidus surface is proposed.