| 喷雾造粒ZrO2粉料坯体性能的研究 |
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| 引用本文： | 丁湘,李金有,杨正方.喷雾造粒ZrO2粉料坯体性能的研究[J].无机材料学报,2000,15(6):999. |
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| 作者姓名： | 丁湘 李金有 杨正方 |
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| 作者单位： | 天津大学材料学院, 天津 300072 |
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| 摘 要： | 以喷雾造粒 ＺｒＯ２粉料为研究对象，通过对粉料的压力－密度曲线及坯体的 ＳＥＭ显微结构分析，发现喷雾造粒粉料的粒度分布对坯体密度的影响较小；颗粒强度的大小是获得均匀的坯体结构的关键，颗粒的强度与其大小及环境湿度有关，因此颗粒适当的增塑及去除大颗粒均有利于坯体显微结构的改善．
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| 关 键 词： | 喷雾造粒ZrO2粉料 坯体性能 粒度分布 环境湿度 |
| 收稿时间： | 1999-11-12 |
| 修稿时间： | 2000-02-15 |
Green Compact Properties of ZrO2 Spray-Dried Powders |
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| DING Xiang,LI Jin-You,YANG Zheng-Fang.Green Compact Properties of ZrO2 Spray-Dried Powders[J].Journal of Inorganic Materials,2000,15(6):999. |
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| Authors: | DING Xiang LI Jin-You YANG Zheng-Fang |
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| Affiliation: | School of Material Science and Engineering; Tianjin University 300072; China |
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| Abstract: | The green compact properties of ZrO2 spray-dried powders were studied by means of pressure-density compaction curves of the powder and SEM photographs . The results show found that the granule size distribution of the spray-dried powder has a smaller effect on the green compact density . Granule yield strength, which depends on the dimension of granules and the relative humidity in the environment, is a critical factor influencing the uniformity of green compact microstructures . Therefore, plasticizing granules and eliminating larger granules can improve the microstructure of the green compact . |
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| Keywords: | ZrO2 spray-dried powder green compact properties granule size distribution relative humidity in the environment |
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