摘要
The room temperature section of the phase diagram of Co-Ge-Sn ternary system has been determined by means of X-ray powder diffraction method.The section determined consists of 12 single-phases,22 two-phase regions,and 11 three-phase re- gions.Two new phases,called δ and η respectively in this paper,have been found.The former is a binary phase with invariable composition(80.46at%Sn)corresponding to formula CoSn_4,and the latter is a ternary phase occuping a homogenous range.The experimental data also show that Co_2Ge phase has a smaller region than that in Ref.1,2,while β-Sn,Ge,CoSn,CoSn_2 and Co_2Ge_3 are phases with invariable compositions.
The room temperature section of the phase diagram of Co-Ge-Sn ternary system has been determined by means of X-ray powder diffraction method.The section determined consists of 12 single-phases,22 two-phase regions,and 11 three-phase re- gions.Two new phases,called δ and η respectively in this paper,have been found.The former is a binary phase with invariable composition(80.46at%Sn)corresponding to formula CoSn_4,and the latter is a ternary phase occuping a homogenous range.The experimental data also show that Co_2Ge phase has a smaller region than that in Ref.1,2,while β-Sn,Ge,CoSn,CoSn_2 and Co_2Ge_3 are phases with invariable compositions.
