以ZrOCl_2·8H_2O、MgCl_2为原料,NH_3·H_2O为沉淀剂,采用缓冲溶液沉淀法制备MgO-ZrO_2前驱体粉体.通过差热分析、X射线衍射、透射电镜等对所得粉体进行测定分析.结果表明:获得了粒径10～20 nm淡黄色氧化镁稳定的氧化锆陶瓷(MgO-ZrO_2)粉体.在稳定剂浓度为10 mol/L时,可获得纯的四方相氧化锆纳米粒子,有望用于口腔齿科材料中.
Nanosized MgO-ZrO_2 precursor powders were prepared by buffer-solution precipitation processing using zirconium oxychloride (ZrOCl_2·8H_2O) and magnesium chloride (MgCl_2) as the raw materials, and NH_3 ·H_2O as the precipitation agent. The synthesized powders were characterized by XRD, TEM and DSC-TG. The spherical MgO-ZrO_2 particles with an average diameter of 10～20 nm can be obtained. Phase composition analysis indicates that ZrO_2 powders are pure tetragonal phase as the concentration of stabilizer is 10 mol/L, which can be potential for dental ceramics application.
参考文献
| [1] | 李明华,刘晓秋,孙宏晨,杨海滨.氧化锆陶瓷在口腔医学中的应用[J].吉林大学学报（医学版）,2006(06):1146-1148. |
| [2] | Thangadurai, P;Sabarinathan, V;Bose, AC;Ramasamy, S .Conductivity behaviour of a cubic/tetragonal phase stabilized nanocrystalline La2O3-ZrO2[J].The journal of physics and chemistry of solids,2004(11):1905-1912. |
| [3] | An S;Wu X;Wu W et al.[J].Solid State Ionics,1992,40/41:31. |
| [4] | Bhattacharyya S;Pratihar S K;Sinha R K et al.[J].Materials Letters,2002,53:425. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%