Zhang, Yongsheng and Chen, Jianmin and Hu, Litian and Liu, Weimin (2006) Pressureless-sintering behavior of nanocrystalline ZrO2-Y2O3-Al2O3 system. Materials Letters, 60 (17-18). 2302 - 2305.
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Official URL: http://www.sciencedirect.com/science/article/B6TX9...
Abstract
ZrO2–Y2O3–Al2O3 nanocrystalline powders have been synthesized using chemical coprecipitation method. Nano-powders were compacted uniaxially and densified in a muffle furnace. Densification studies showed that a fully dense pellet of ZrO2(3Y) and a 99% relative density for 5 mol% Al2O3 doped ZrO2(3Y) were obtained after sintering at 1200 °C. The presence of Al2O3 inhibits grain growth and suppresses the densification process. Full densification and the maximum microhardness of 17.8 GPa were achieved for the ZrO2(3Y)/5 mol% Al2O3 composites sintered at 1250 °C.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ZrO2–Y2O3–Al2O3; Nanocomposites; Pressureless sintering; Hardness |
| Subjects: | Material Science > Nanostructured materials |
| ID Code: | 6800 |
| Deposited By: | SPI |
| Deposited On: | 18 Jan 2010 10:18 |
| Last Modified: | 18 Jan 2010 10:18 |
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