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    Isothermal Section of the Al2O3–TiO2–Er2O3 Phase Diagram at 1400°C
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    Isothermal process
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    The characteristics of local phase diagram in WC-(Ni-Fe)pseudo binary system were studied by means of optical microscope,SEM,X-ray diffraction and thermal-analysis.The maximum solubility and the solubility at room temperature of WC in γphase were also measured.The results show that WC-(Ni-Fe)pseudo binary system is still a typical WC-(Ni-Fe)eutectic phase diagram.The eutectic temperature is 1419℃.The solubility of WC in γ phase varies with temperature.The maximum solubility at eutectic temperature is 11.2% and the solubility at room temperature is 9.01%.
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    Using the revised quasiregular model, we obtained the equations of the liquid-solid phase equilibrium curves of a binary system according to thermodynamic theory. For the 9 binary organic systems having the phase diagram with an eutectic point, we calculated the phase diagrams and their values of the eutectic point (T_0,x_(B_0)). These results agree well with the experimental values.
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    AbstractAbstractThis communication presents confirmation of the recent work by Evans and Prince on the Bi-In phase diagram (Fig. 1), especially that portion lying between the compounds BiIn and BiIn2 The structure of the Bi3Ins-BiIn2 eutectic is also reported.
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