Abstract: The phase diagram of ternary system LaCl3 - SrCl2 - LiCl has been investigated by means of DTA. It was found that there were three fields corresponding to primary crystallization of LaCl3, SrCl2 and LiCl res...Abstract: The phase diagram of ternary system LaCl3 - SrCl2 - LiCl has been investigated by means of DTA. It was found that there were three fields corresponding to primary crystallization of LaCl3, SrCl2 and LiCl respectively, three univeriant curves related to the secondary crystallization, a ternary eutectic E (46.8% LaCl3, 25.4% SrCl, 30.0% LiCl; 469℃) in the system. A ternary reaction occurred in the system:L = LaCl3 + SrCl2 + LiCl展开更多
The phase diagrams of binary systems SmCl_3-CaCl_2 and SmCl_3-LiCl were determined by DTA and X-ray diffraction analysis.The system SmCl_3-CaCl_2 is of a simple eutectic type with eutectic point of 55.8mol-% SmCl_3 at...The phase diagrams of binary systems SmCl_3-CaCl_2 and SmCl_3-LiCl were determined by DTA and X-ray diffraction analysis.The system SmCl_3-CaCl_2 is of a simple eutectic type with eutectic point of 55.8mol-% SmCl_3 at 545℃.The system SmCl_3-LiCl is of the type with incongruent melting phase 2SmCl_3·LiCl at peritectic point 434℃ and with eutectic point of 31.5 mol-% SmCl_3 at 395℃.展开更多
The phase diagram of ternary system ErCl_3-CaCl_2-LiCl has been investigated by means of DTA. It was found that there are four fields corresponding to the primary crystallization of ErCl_3,CaCl_2, LiCl and Li_3ErCl_6 ...The phase diagram of ternary system ErCl_3-CaCl_2-LiCl has been investigated by means of DTA. It was found that there are four fields corresponding to the primary crystallization of ErCl_3,CaCl_2, LiCl and Li_3ErCl_6 respectively, five univariant curves related to the secondary crystallization, a ternary eutectic E(58. 5% ErCl_3, 23. 7% CaCl_2, 17. 8%LiCl, 397 ℃) and a ternary peritectic point P(52. 5% ErCl_3, 27. 2% CaCl_2, 20. 3% LiCl, 428 ℃) in the phase diagram. Two ternary reactions occur in the system: L =ErCl_3 + Li_3ErCl_6 +CaCl_2; L+LiCl=Li_3ErCl_6 +CaCl_2.展开更多
Two surfaces correponding to LaCl_3 and α-solid solution(MgCl_2.LiCl) respectively: and one secondary crystallization curve with a minimum M at 63.8 wt-％ LaCl_3,2.0 wt-％ MgCl_2,34.2 wt-％ LiCl and 492℃ were fonud ...Two surfaces correponding to LaCl_3 and α-solid solution(MgCl_2.LiCl) respectively: and one secondary crystallization curve with a minimum M at 63.8 wt-％ LaCl_3,2.0 wt-％ MgCl_2,34.2 wt-％ LiCl and 492℃ were fonud by means of DTA.In combination with liquidus determination.an approach was also made to the alteration in LnCl_3-MgCl_2-LiCl svstem,where Lu denotes La.Ce.Pr or Nd.展开更多
The equilibrium solubility of CsCl CeCl 3 HCl(11%) H 2O quaternary system at 25 ℃ has been determined by the physic chemical analysis method, and the phase diagram was plotted. Two new double salts 3CsCl·C...The equilibrium solubility of CsCl CeCl 3 HCl(11%) H 2O quaternary system at 25 ℃ has been determined by the physic chemical analysis method, and the phase diagram was plotted. Two new double salts 3CsCl·CeCl 3·3H 2O and CsCl·CeCl 3·4H 2O obtained from the complicated system were identified and characterized by XRD, TG DTA, DSC, UV and fluorescence spectroscopy. Studies on the fluorescence excitation and emission show that 3CsCl·CeCl 3·3H 2O and CsCl·CeCl 3·4H 2O have upconversion luminescence of infrared visible range, and the upconversion emission intensity increases with the increase of ratio of CeCl 3 in CsCl.展开更多
The knowledge of the phase diagram of the molten salts is of primary importancefor investigating their physicochemical properties and for electrolytic preparation ofthe corresponding metals. Up to now,however, the pha...The knowledge of the phase diagram of the molten salts is of primary importancefor investigating their physicochemical properties and for electrolytic preparation ofthe corresponding metals. Up to now,however, the phase diagram of the ternary sys-tem LaCl<sub>3</sub>-BaCl<sub>2</sub>-LiCl has not been reported in literature. Therefore, for practical pur-展开更多
文摘Abstract: The phase diagram of ternary system LaCl3 - SrCl2 - LiCl has been investigated by means of DTA. It was found that there were three fields corresponding to primary crystallization of LaCl3, SrCl2 and LiCl respectively, three univeriant curves related to the secondary crystallization, a ternary eutectic E (46.8% LaCl3, 25.4% SrCl, 30.0% LiCl; 469℃) in the system. A ternary reaction occurred in the system:L = LaCl3 + SrCl2 + LiCl
文摘The phase diagrams of binary systems SmCl_3-CaCl_2 and SmCl_3-LiCl were determined by DTA and X-ray diffraction analysis.The system SmCl_3-CaCl_2 is of a simple eutectic type with eutectic point of 55.8mol-% SmCl_3 at 545℃.The system SmCl_3-LiCl is of the type with incongruent melting phase 2SmCl_3·LiCl at peritectic point 434℃ and with eutectic point of 31.5 mol-% SmCl_3 at 395℃.
文摘The phase diagram of ternary system ErCl_3-CaCl_2-LiCl has been investigated by means of DTA. It was found that there are four fields corresponding to the primary crystallization of ErCl_3,CaCl_2, LiCl and Li_3ErCl_6 respectively, five univariant curves related to the secondary crystallization, a ternary eutectic E(58. 5% ErCl_3, 23. 7% CaCl_2, 17. 8%LiCl, 397 ℃) and a ternary peritectic point P(52. 5% ErCl_3, 27. 2% CaCl_2, 20. 3% LiCl, 428 ℃) in the phase diagram. Two ternary reactions occur in the system: L =ErCl_3 + Li_3ErCl_6 +CaCl_2; L+LiCl=Li_3ErCl_6 +CaCl_2.
文摘Two surfaces correponding to LaCl_3 and α-solid solution(MgCl_2.LiCl) respectively: and one secondary crystallization curve with a minimum M at 63.8 wt-％ LaCl_3,2.0 wt-％ MgCl_2,34.2 wt-％ LiCl and 492℃ were fonud by means of DTA.In combination with liquidus determination.an approach was also made to the alteration in LnCl_3-MgCl_2-LiCl svstem,where Lu denotes La.Ce.Pr or Nd.
文摘The equilibrium solubility of CsCl CeCl 3 HCl(11%) H 2O quaternary system at 25 ℃ has been determined by the physic chemical analysis method, and the phase diagram was plotted. Two new double salts 3CsCl·CeCl 3·3H 2O and CsCl·CeCl 3·4H 2O obtained from the complicated system were identified and characterized by XRD, TG DTA, DSC, UV and fluorescence spectroscopy. Studies on the fluorescence excitation and emission show that 3CsCl·CeCl 3·3H 2O and CsCl·CeCl 3·4H 2O have upconversion luminescence of infrared visible range, and the upconversion emission intensity increases with the increase of ratio of CeCl 3 in CsCl.
基金Project supported by the National Natural Science Foundation of China.
文摘The knowledge of the phase diagram of the molten salts is of primary importancefor investigating their physicochemical properties and for electrolytic preparation ofthe corresponding metals. Up to now,however, the phase diagram of the ternary sys-tem LaCl<sub>3</sub>-BaCl<sub>2</sub>-LiCl has not been reported in literature. Therefore, for practical pur-
