The phase diagrams of the CdS-CdSe-CdTe pseudoternary system at 708ﾟC, 758ﾟC and 808ﾟC

用X射线衍射仪研究了在708ﾟC、758ﾟC和808ﾟC温度下的Cd S-Cd Se-Cd Te伪三元系相图。样品在不同温度下分别进行了1000h的退火和淬火。在808ﾟ闪锌矿类型的单相区、纤锌矿单相区和两个两相区。在758ﾟC和708ﾟ的混合型单相区，利用努森电池-质谱仪组合的等温蒸发法，在688kW的温度下，测定了Cd S-Cd Se-Cd Te系统中Cd S-Cd Se-Cd Te系统中富Cd侧的相界面。通过测量离子强度随组成的变化来确定相界面。

The phase diagrams of the CdS-CdSe-CdTe pseudoternary system at 708ﾟC, 758ﾟC and 808ﾟC were investigated by X-ray diffraction measurement.The samples were annealed at each temperatures for 1000 hours and quenched.At 808ﾟCzincblende type single-phase region, wurtzite single-phase region and two two-phase regions exist.At 758ﾟC and 708ﾟCzincblend type single-phase region, wurtzite type single-phase region and a two-phase region exist.And an isothermal evaporation method by means of a Knudsen cell-mass spectrometer combination has been applied to the determination of the phase boundary of the CdS rich side in the CdS-CdSe-CdTe system at the temperature of 688ﾟC.The phase boundary was determined by measuring the change of ion intensities as a function of composition.