The room temperature section and the 750℃ isothermal section of the Ag-Pd-Gd ternary phase diagram containing 0—25 at.-% Gd are constructed by X—ray diffraction analysis and optical microscopy.Each section consists...The room temperature section and the 750℃ isothermal section of the Ag-Pd-Gd ternary phase diagram containing 0—25 at.-% Gd are constructed by X—ray diffraction analysis and optical microscopy.Each section consists of 3 single phase regions,3 bi-phase regions and I tri-phase region respectively.展开更多
On the basis of the Ag-Pd-Gd, Ag-Ru-Gd and Pd-Ru-Gd ternary systems, the partial phase diagram of Pd-Ag-Ru-Gd（Gd<25% atom fraction） quaternary system has been studied by means of X-ray diffraction analysis, diffe...On the basis of the Ag-Pd-Gd, Ag-Ru-Gd and Pd-Ru-Gd ternary systems, the partial phase diagram of Pd-Ag-Ru-Gd（Gd<25% atom fraction） quaternary system has been studied by means of X-ray diffraction analysis, differential thermal analysis, electron probe microanalysis and optical microscopy. The 700℃ isothermal sections of the Ag-Pd-5Ru-Gd, Ag-Pd-20Ru-Gd and Ag-Pd-50Ru-Gd （Gd≤25% atom fraction） phase diagrams were determined respectively. And the 700℃ isothermal section of the Pd-Ag-Ru-Gd （Gd≤25% atom fraction） quaternary system phase diagram was finally inferred. The section consists of four single-phase regions: solid solution Pd（Ag）, （Ru）, Pd3Gd and Ag 51 Gd 14 ; five two-phase regions: Pd（Ag）+（Ru）, Pd（Ag）+ Ag 51 Gd 14 , （Ru）+ Ag 51 Gd 14 , Pd（Ag）+ Pd3Gd and （Ru）+ Pd3Gd; three three-phase regions: Pd（Ag）+ Pd3Gd+（Ru）, Pd（Ag）+ Ag 51 Gd 14 +（Ru） and （Ru）+ Ag 51 Gd 14 + Pd3Gd; one four-phase region Pd（Ag）+ （Ru）+ Ag 51 Gd 14 + Pd3Gd. No new quaternary intermetallic phase is found.展开更多
文摘The room temperature section and the 750℃ isothermal section of the Ag-Pd-Gd ternary phase diagram containing 0—25 at.-% Gd are constructed by X—ray diffraction analysis and optical microscopy.Each section consists of 3 single phase regions,3 bi-phase regions and I tri-phase region respectively.
文摘On the basis of the Ag-Pd-Gd, Ag-Ru-Gd and Pd-Ru-Gd ternary systems, the partial phase diagram of Pd-Ag-Ru-Gd（Gd<25% atom fraction） quaternary system has been studied by means of X-ray diffraction analysis, differential thermal analysis, electron probe microanalysis and optical microscopy. The 700℃ isothermal sections of the Ag-Pd-5Ru-Gd, Ag-Pd-20Ru-Gd and Ag-Pd-50Ru-Gd （Gd≤25% atom fraction） phase diagrams were determined respectively. And the 700℃ isothermal section of the Pd-Ag-Ru-Gd （Gd≤25% atom fraction） quaternary system phase diagram was finally inferred. The section consists of four single-phase regions: solid solution Pd（Ag）, （Ru）, Pd3Gd and Ag 51 Gd 14 ; five two-phase regions: Pd（Ag）+（Ru）, Pd（Ag）+ Ag 51 Gd 14 , （Ru）+ Ag 51 Gd 14 , Pd（Ag）+ Pd3Gd and （Ru）+ Pd3Gd; three three-phase regions: Pd（Ag）+ Pd3Gd+（Ru）, Pd（Ag）+ Ag 51 Gd 14 +（Ru） and （Ru）+ Ag 51 Gd 14 + Pd3Gd; one four-phase region Pd（Ag）+ （Ru）+ Ag 51 Gd 14 + Pd3Gd. No new quaternary intermetallic phase is found.
