期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Binary Phase Diagram of C10Cu-C12Cu of Thermotropic Phase Transitions Materials
摘要/Abstract
合成了2种具有层状钙钛矿结构的热致相变材料四溴合铜酸癸铵(n-C10H21NH3)2CuBr4(简记C10Cu)和四溴合铜酸十二铵(n-C12H25NH3)2CuBr4(简记C11Cu),并在2种材料的乙酸溶液中结晶出一系列C10Cu-C12Cu二元体系.利用差热分析(DTA)和X射线衍射(XRD)构筑了C10Cu-C12Cu二元体系相图.在实验相图中确定了新的稳定化合物C10C12Cu的存在和2个不变的共晶点,共晶点温度分别为35℃和30℃.与同类体系的其他相图相比,在此相图的左右边界和中间区域存在3个显著的固溶区.
Thermo tropic phase transition compounds with the perovskite type layer structure , (n-C10H21NH3)2CuBr4 and (n-C12H25NH3)2CuBr4 were synthesized .A series of binary phases C10Cu-C12Cu were crastalized from the acetic acid solutions of their mixtures .The experimental binary phase diagram of C10Cu-C12Cu was established by differential thermal analysis (DTA)and X-ray diffraction (XRD).In the phase diagram , new stable material (n-C10H21NH3)(n-C12H25NH3)2CuBr4 , and two eutectoid invariants with the eutectic point temperature of 35 and 30 ℃were observed .Compared with the phase diagrams of other similar systems , there were three noticeable solid solution ranges at the left boundary , right boundary and middle of the phase diagram respectively .