La2Zr2O7(733) 71.38 71.37213532 71.38884659 71.40555786
La2Zr2O7(751) 76.245 76.31867094 76.25182586 76.26853713 76.25182586 76.23511459 76.25182586
La2Zr2O7(662) 76.78 76.78658647 76.7698752 76.80329774 76.85343154 76.75316393 76.85343154 76.78658647 76.82000901
La2Zr2O7(840) 79.169 79.20972047 79.17629793 79.15958666 79.15958666 79.1930092 79.22643174 79.15958666 79.22643174
La2Zr2O7(844) 88.527 88.58474237 88.51789729 88.53460856 88.5680311 88.5680311 88.51789729 88.51789729 88.51789729
相以外还有ZrO2杂质相和La2O3杂质相的存在,这说明在这些条件下ZrO2和La2O3不能完全转化为La2Zr2O7。由图3.2中的1h、2h、3h、4h、5h、8h、9h、10h曲线可以看出:随着反应时间加长,ZrO2(-221)、ZrO2(-322)、ZrO2(-223)、ZrO2(-232)、La2O3(110)、La2O3(103)、La2O3(210)、La2O3(211)等晶面渐渐消失;并且随着反应时间的继续加长到8h以后La2Zr2O7的衍射峰强度增加。
3.1.2反应物与熔融盐比为1:3,温度为1000℃时,反应时间对粉体1的影响
表3.2不同反应时间产物的数据表
标准 1h 3h 8h 9h 10h
ZrO2(001) 17.483 17.5117154 17.49500413 17.47829286 17.54513794 17.49500413
ZrO2(110) 24.072 24.14608919 24.07924411 24.07924411 24.16280046 24.11266665
ZrO2(011) 24.472 24.59729345 24.4636033 24.5137371 24.49702583 24.53044837
ZrO2(-111) 28.214 28.3406177 28.20692755 28.25706135 28.32390643 28.29048389
ZrO2(111) 31.492 31.58260388 31.465625 31.49904754 31.56589261 31.51575881
ZrO2(200) 34.197 34.28982946 34.1561393 34.18956184 34.22298438 34.20627311
ZrO2(020) 34.401 34.55720976 34.45694215 34.47365341 34.3733858
ZrO2(002) 35.335 35.44290702 35.3426394 35.35935067 35.39277321 35.3426394
ZrO2(-201) 35.922 35.96095635 35.97766762 35.96095635 36.01109016
ZrO2(120) 38.589 38.56791431 38.60133685 38.58462558 38.58462558 38.63475939
ZrO2(012) 39.474 39.48703411 39.47032284 39.52045665 39.48703411 39.4369003 锆酸镧陶瓷粉的制备+文献综述(13):http://www.751com.cn/huaxue/lunwen_1876.html