| Manufacture Process of 8Y2O3 Stabilized ZrO2 from Nano Powders |
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| 引用本文： | HANMin-fang LIBo-tao PENGSu-ping. Manufacture Process of 8Y2O3 Stabilized ZrO2 from Nano Powders[J]. 武汉理工大学学报(材料科学英文版), 2004, 19(3): 10-13. DOI: 10.1007/BF02835049 |
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| 作者姓名： | HANMin-fang LIBo-tao PENGSu-ping |
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| 摘 要： | The manufacture process of 8 mol% Y2O3 stabilized ZrO2 ( YSZ ) from nano powders, including the forming and sintering stages, was studied. During the forming process of YSZ powders, the relative density of YSZ increases lineally with the forming press, and the sintering linear shrinkage of YSZ to the forming press compiles to the parabola trend. When the forming press exceeding 500MPa, the samples with lower shrinkage and high density were obtained. The sintering temperature of YSZ decreases greatly because of the small size and high active surface of YSZ powders. As a result, the beginning sintering temperature of YSZ made in the experiment is as low as 825℃, and the end sintering temperature is 1300-1350℃ . The relative density of YSZ ceramic by solid sintering at 1300-1350℃ is more than 97% , with little and small pores in the uniform microstructure.
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| 关 键 词： | YSZ陶瓷 纳米粉末 烧结过程 稳定氧化锆 氧化钇 成型 纳米材料 氧化物陶瓷 |
| 收稿时间： | 2003-04-10 |
| 修稿时间： | 2004-05-25 |
Manufacture process of 8Y2O3 stabilized ZrO2 from nano powders |
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| Han Min-fang,Li Bo-tao,Peng Su-ping. Manufacture process of 8Y2O3 stabilized ZrO2 from nano powders[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2004, 19(3): 10-13. DOI: 10.1007/BF02835049 |
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| Authors: | Han Min-fang Li Bo-tao Peng Su-ping |
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| Affiliation: | (1) College of Chemitry and Environment, China University of Mining & Technology, 100083 Beijing, China |
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| Abstract: | The manufacture process of 8 mol% Y2O3 stabilized ZrO2 (YSZ) from nano powders, including the forming and sintering stages, was studied. During the forming process of YSZ powders, the relative density of YSZ increases lineally with the forming press, and the sintering linear shrinkage of YSZ to the forming press compiles to the parabola trend. When the forming press exceeding 500 MPa, the samples with lower shrinkage and high density were obtained. The sintering temperature of YSZ decreases greatly because of the small size and high active surface of YSZ powders. As a result, the beginning sintering temperature of YSZ made in the experiment is as low as 825°C, and the end sintering temperature is 1300–1350°C. The relative density of YSZ ceramic by solid sintering at 1300–1350°C is more than 97%, with little and small pores in the uniform microstructure. HAN min-fang: Born in 1967 Funded by the National Excellence Young Science Fundation Project (No. 50025413) |
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| Keywords: | 8mol% Y2O3 stabilized ZrO2 (YSZ) nano powders forming process sintering process |
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