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SmCl_3-CaCl_2及SmCl_3-LiCl体系相图的研究 被引量:7
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作者 张翊凤 孟波 谷云燕 《金属学报》 SCIE EI CAS CSCD 北大核心 1991年第6期B438-B439,共2页
用DTA和X射线衍射方法研究了 SmCl_3-CaCl_2及SmCl_3-LiCl二元体系相图.发现前者属于简单低共熔型,低共熔点e_1为55.8mol%SmCl_3,545℃;后者属于有化合物分解的相图类型,该异分熔点化合物为Sm_2LiCl_7,分解温度434℃,转熔点p组成为39.0... 用DTA和X射线衍射方法研究了 SmCl_3-CaCl_2及SmCl_3-LiCl二元体系相图.发现前者属于简单低共熔型,低共熔点e_1为55.8mol%SmCl_3,545℃;后者属于有化合物分解的相图类型,该异分熔点化合物为Sm_2LiCl_7,分解温度434℃,转熔点p组成为39.0mol%SmCl_3.低共熔点e_2为31.5mol%SmCl_3,395℃。 展开更多
关键词 稀土熔盐体系 相图 二无体系
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PHASE DIAGRAMS OF SYSTEMS SmCl_3-CaCl_2 AND SmCl_3-LiCl
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作者 ZHANG Yifeng MENG Bo GU Yunyan Northeast University of Technology,Shenyang,China Professor,Department of Chemistry,Northeast University of Technology,Shenyang 110006,China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1992年第9期219-220,共2页
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
关键词 smcl_3-CaCl_2 smcl_3-licl Phase diagram
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LIQUIDUS OF NdCl_3-MgCl_2-LiCl SYSTEM
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作者 ZHENG Chaogui JIN Jun YE Yupu Department of Chemistry,Peking University,Beijing,China Dept.of Chemistry,Peking University,Beijing,China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1989年第10期290-292,共3页
The liquidus of ternary system NdCl_3-MgCl_2-LiCl has been determined by means of DTA.It was found that there are two surfaces corresponding to the primary crystallization of NdCl_3 and α-(MgCl_2,LiCl)respectively,an... The liquidus of ternary system NdCl_3-MgCl_2-LiCl has been determined by means of DTA.It was found that there are two surfaces corresponding to the primary crystallization of NdCl_3 and α-(MgCl_2,LiCl)respectively,and a univariant line related to the secondary crystallization with a minimum M(68.5 wt-% NdCl_3,2.7 wt-% MgCl_2,28.8 wt-% LiCl_2 441℃)in the system. 展开更多
关键词 NdCl_3 NdCl_3-MgCl_2-licl ternary system LIQUIDUS
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INVESTIGATION ON THE PHASE DIAGRAM OF TERNARY SYSTEM LaCl_3-SrCl_2-LiCl
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作者 Chao Gui ZHENG Yan Ke ZHENG 《Chinese Chemical Letters》 SCIE CAS CSCD 1996年第5期483-486,共4页
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
关键词 LaCl3-SrCl2-licl SYSTEM TERNARY OF PHASE DIAGRAM INVESTIGATION
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LIQUIDUS OF TERNARY SYSTEM LaCl_3-MgCl_2-LiCl
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作者 ZHENG Chaogui LIU Hongping +1 位作者 QIAO Zhiyu YE Yupu Peking University,Beijing.China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1992年第12期443-446,共4页
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
关键词 LaCl_3-MgCl_2-licl LaCl_3 system phase diagram
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Investigation on the Phase Diagram of Ternary System ErCl_3-CaCl_2-LiCl
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作者 宋秀芹 郑朝贵 苏勉曾 《Journal of Rare Earths》 SCIE EI CAS CSCD 1995年第3期175-180,共6页
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
关键词 ErCl_3 ErCl_3-CaCl_2-licl ternary system Phase diagram
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AN INVESTIGATION ON PHASE DIAGRM OF TERNARY SYSTEM CeCl_3-BaCl_2-LiCl
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作者 Zheng,Chaogui Chen, Yanping(Department of Chemistry, Beijing University.Beijing 100871) 《中国有色金属学会会刊:英文版》 CSCD 1994年第2期1-3,9,共4页
ANINVESTIGATIONONPHASEDIAGRMOFTERNARYSYSTEMCeCl_3-BaCl_2-LiClANINVESTIGATIONONPHASEDIAGRMOFTERNARYSYSTEMCeCl... ANINVESTIGATIONONPHASEDIAGRMOFTERNARYSYSTEMCeCl_3-BaCl_2-LiClANINVESTIGATIONONPHASEDIAGRMOFTERNARYSYSTEMCeCl_3-BaCl_2-LiCl¥Zh... 展开更多
关键词 system PHASE DIAGRAM CeCl3-BaCl2-licl
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三氯化铝-氯化锂体系中5-取代-1-茚酮化合物的合成研究
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作者 潘继刚 张光辉 +1 位作者 姚兵 陶勇凯 《化学试剂》 CAS 北大核心 2019年第5期526-530,共5页
茚酮类化合物不仅广泛存在于天然产物中,而且在药物研发、杀虫剂等方面有广阔的应用前景。以3-氯丙酰氯及取代苯(Cl—、Br—、CH_3—及CH_3O—)为原料,通过路易斯酸催化,先后经过付克酰基化、付克烷基化来合成相应的目标化合物(Cl—、B... 茚酮类化合物不仅广泛存在于天然产物中,而且在药物研发、杀虫剂等方面有广阔的应用前景。以3-氯丙酰氯及取代苯(Cl—、Br—、CH_3—及CH_3O—)为原料,通过路易斯酸催化,先后经过付克酰基化、付克烷基化来合成相应的目标化合物(Cl—、Br—、CH_3—及HO—)。优化了这类化合物的合成条件,选择新型的AlCl_3-LiCl熔盐体系作为付克烷基化的路易斯酸催化剂和反应溶剂,大大提高了茚酮类化合物的合成产率,总收率可达到77%~82%。目标化合物的结构通过核磁共振分析确定。 展开更多
关键词 5-取代-1-茚酮 付克反应 AlCl3-licl熔盐 路易斯酸催化剂
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钐对P92钢涂层组织及质量的影响
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作者 赵勇桃 马洪浩 +2 位作者 李慧琴 姜亚君 任慧平 《稀土》 CAS CSCD 北大核心 2024年第3期153-158,I0006,共7页
稀土在渗铝过程中不仅起到催渗促渗作用,还可以提升渗层的质量。通过配置不同稀土含量的渗铝剂6%Al-2%NH_(4)Cl-xSmCl_(3)-(92%-x)Al_(2)O_(3)(x为0,2%,4%,6%SmCl_(3)),凭借包埋法,采用合适的工艺条件在超超临界P92钢表面制备得到不同... 稀土在渗铝过程中不仅起到催渗促渗作用,还可以提升渗层的质量。通过配置不同稀土含量的渗铝剂6%Al-2%NH_(4)Cl-xSmCl_(3)-(92%-x)Al_(2)O_(3)(x为0,2%,4%,6%SmCl_(3)),凭借包埋法,采用合适的工艺条件在超超临界P92钢表面制备得到不同稀土含量的涂层。利用OM、SEM对涂层进行组织观察,通过SEM的能谱分析对涂层截面元素分布进行分析,通过XRD对涂层表面进行物相分析。结果表明,无稀土元素的涂层厚度不均且涂层中存在孔洞、裂纹等缺陷;加入稀土,可不同程度增加渗层的厚度,且适量稀土可提升涂层质量。对比可知,2%稀土含量的渗层稍厚,且厚度均匀。不同涂层表面物相均为AlCrFe_(2)。此研究可为优化渗铝剂中稀土含量、制备质量较好的涂层提供数据支持。 展开更多
关键词 P92 smcl_(3) 渗铝实验 涂层厚度 包埋法
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ТЕРМОГРАФИЧЕСКОЕ ИССЛЕДОВАНИЕ СИСТЕМ ХЛОРИДОВ РЕДКОЗЕМЕЛЬНЫХ ЭЛЕМЕНТОВ И ЩЕЛОЧНЫХ МЕТАЛЛОВ Ⅲ. СИСТЕМЫ YCl_3-LiCl, YCl_3-NaCl, YCl_3-KCl, YCl_3-RbCl И YCl_3-CsCl
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作者 苏勉曾 裘炳毅 《Chinese Science Bulletin》 SCIE EI CAS 1966年第3期133-135,共3页
关键词 РМ YCl3-CsCl YCl3-KCl YCl3-licl YCl3-NaCl YCl3-RbCl 一卿
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Investigation on Phase Diagram of Ternary System LaCl_3-BaCl_(2-)LiCl
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作者 郑朝贵 陈燕平 张立平 《Chinese Science Bulletin》 SCIE EI CAS 1994年第6期480-483,共4页
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
关键词 system PHASE DIAGRAM LaCl3BaCl2-licl.
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