| Repetitious-Hot-Pressing Technique in Hot-Pressing Process |
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| 作者姓名： | JunZHAO ShixueSONG XingAI WeiGAO |
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| 作者单位： | SchoolofMechanicalEngineering,ShandongUniversity,Jinan250061,China |
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| 摘 要： | A new pressing method was proposed for hot-pressing process. Experimental results indicated that the porosity in Al2O3/TiC/Ni/Mo (hereafter called Al2O3/TiC composite) composite compacts decreases by 6% after adopting this new technique,compared to traditional hot-pressing technique under the same sintering temperature. The flexural strength and Vicker hardness increase from 883 MPa to 980 MPa and from 16 GPa to 21.1 GPa, respectively. A theoretical model was given to analyze the densification mechanism of the composite in the process of repetitious-hot-pressing.
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| 关 键 词： | 复合陶瓷 热压烧结 重复热压烧结 制备工艺 实验研究 |
Repetitious-Hot-Pressing Technique in Hot-Pressing Process |
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| JunZHAO ShixueSONG XingAI WeiGAO.Repetitious-Hot-Pressing Technique in Hot-Pressing Process[J].Journal of Materials Science & Technology,2003,19(5):486-488. |
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| Authors: | Shixue SONG Xing AI Wei GAO Jun ZHAO |
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| Affiliation: | School of Mechanical Engineering, Shandong University, Jinan 250061, China;School of Science, Jinan University, Jinan 250022, China |
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| Abstract: | A new pressing method was proposed for hot-pressing process. Experimental results indicated that the porosity in Al2O3/TiC/ Ni/Mo (hereafter called AI2O3/TiC composite) composite compacts decreases by 6% after adopting this new technique, compared to traditional hot-pressing technique under the same sintering temperature. The flexural strength and Vicker hardness increase from 883 MPa to 980 MPa and from 16 GPa to 21.1 GPa, respectively. A theoretical model was given to analyze the densification mechanism of the composite in the process of repetitious-hot-pressing. |
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| Keywords: | Hot-pressing sintering Repetitious-hot-pressing sintering Composite |
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