| (Sr,Pb)TiO3超微粉体的制备和性质 |
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| 引用本文： | 王德君,周济,桂治轮,李龙土. (Sr,Pb)TiO3超微粉体的制备和性质[J]. 无机材料学报, 1997, 12(2): 231-236 |
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| 作者姓名： | 王德君 周济 桂治轮 李龙土 |
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| 作者单位： | 清华大学材料科学与工程系!北京，100084，清华大学材料科学与工程系!北京，100084，清华大学材料科学与工程系!北京，100084，清华大学材料科学与工程系!北京，100084 |
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| 摘 要： | 应用草酸盐共沉淀法制备（Ｓｒ，Ｐｂ）ＴｉＯ３超细粉体，分析了共学淀产物的热分解过程，确定了昌化温度和煅烧条件，同时，测量了粉示的晶粒尺寸，标定了材料的晶体结构，试验了粉体的烧结条件。
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| 关 键 词： | 沉淀 结晶 钛酸锶铅 陶瓷 粉体材料 制备 |
| 收稿时间： | 1996-01-08 |
| 修稿时间： | 1996-02-05 |
Preparation and Characteristics of (Sr, Pb)TiO3,Ultrafine Particles |
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| WANG Dejun,ZHOU Ji,GUI Zhilun,LI Longtu. Preparation and Characteristics of (Sr, Pb)TiO3,Ultrafine Particles[J]. Journal of Inorganic Materials, 1997, 12(2): 231-236 |
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| Authors: | WANG Dejun ZHOU Ji GUI Zhilun LI Longtu |
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| Affiliation: | DepartmentofMaterialsScienceandEngineering;QinghuaUniversityBeijing100084China |
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| Abstract: | The (Sr, Pb)TiO3 ultrafine particles were prepared by oxalate-coprecipitation process, the thermolysisprocess of the coprecipitates (Sr, Pb)TiO(C2O4)2 .4H2O was analyzed and the crystallization temperatureand calcination comdition were defined. The averagc Primary particle size calcined at differenttemperaturcs, the crystal structurcs of sintered body and powders calcilled at different temperatures and thesintering condition of powders were also determined. The results show that the synthetic temperatureof ceramic powdcr prepared by this process is inuch lowcr than that by the conventional solid reactionprocess. The ceramic powder obtained is ultrafine and uniform, and the sintering temperature is lower.Exotic structure with fine grain was observcd, that is, when the particle size is very small, the crystalstructure is not the normal tetragonal ferroelectric structure but cubic paraelectric. |
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| Keywords: | powders copreeipitation crystallization strontium-lead titanate strontium-lead titanyloxalate |
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