| Y_2O_3-MgO共稳定ZrO_2的相研究 |
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| 引用本文： | 张瑞霞,夏风,肖建中. Y_2O_3-MgO共稳定ZrO_2的相研究[J]. 传感器与微系统, 2006, 25(11): 31-34 |
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| 作者姓名： | 张瑞霞 夏风 肖建中 |
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| 作者单位： | 华中科技大学,材料科学与技术系,塑性成型模拟及模具技术国家重点实验室,湖北,武汉,430074 |
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| 摘 要： | 通过化学组成和相含量设计,采用湿混法制备了MgO和Y2O3共同稳定ZrO2粉末,在不同的温度下烧结,获得了室温下单斜相和四方相含量不同的烧结样品,用X射线峰宽化法测定并计算了粒子尺寸。结果表明:随着Y2O3含量的增加,单斜相含量降低,四方相含量增加。温度对相含量的影响较小,而晶粒尺寸受Y2O3和温度的影响并不明显。
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| 关 键 词： | 氧化锆 相变 晶粒尺寸 氧化钇 烧结 四方相 |
| 文章编号： | 1000-9787（2006）11-0031-04 |
| 收稿时间： | 2006-04-10 |
| 修稿时间： | 2006-04-10 |
Research on the phase of ZrO2 powder stabilized by Y2O3 and MgO |
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| ZHANG Rui-xia,XIA Feng,XIAO Jian-zhong. Research on the phase of ZrO2 powder stabilized by Y2O3 and MgO[J]. Transducer and Microsystem Technology, 2006, 25(11): 31-34 |
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| Authors: | ZHANG Rui-xia XIA Feng XIAO Jian-zhong |
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| Affiliation: | State Key Laboratory of Plastic Forming Simulation and Die and Mold Technology, Department of Material Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | The ZrO2-Y2O3-MgO powder is prepared by wet-mixing after designing the composition and phase content. Sintered sample which has different amount of monoclinic and tetragonal phase at room temperature is obtained at different sintering temperature. The grain size is investigated by X-ray pattern. The result shows that the content of monoclinic ZrO2 is increased and the content of tetragonal ZrO2 is decreased with the addition of Y2O3. The sintering temperature has little influence on the phase transformation. Meanwhile the sintering temperature and the Y2O3 content have little influence upon the grain size. |
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| Keywords: | zireonia phase transformation grain size yttria sinter tetragonal |
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