| Effect of Y2O3– MgO Addition on Heterogeneous Precipitation-Thermal Reduction Synthesis and Sintering ofFe – Mo/Si3N4Powders |
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| 引用本文： | R. Yin,F. Ji,Q. Hou,F. Liu,J. Li and L. Chen. Effect of Y2O3– MgO Addition on Heterogeneous Precipitation-Thermal Reduction Synthesis and Sintering ofFe – Mo/Si3N4Powders[J]. 材料科学技术学报, 2014, 30(3): 285-289. DOI: 10.1016/j.jmst.2013.05.010 |
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| 作者姓名： | R. Yin F. Ji Q. Hou F. Liu J. Li and L. Chen |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China （Nos. 51274093 and 50804016） and the Key Discipline Project Foundation of Hunan Province, China （No. 0805）. |
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| 摘 要： | Effect of Y2O3-MgO addition on heterogeneous precipitation-thermal reduction synthesis and the sintering of Fe-Mo/Si3N4 powders has been investigated. It was found that the whiskers-like β-Si3N4, good wettability phases on Si3N4 surface, and high toughness Fe phase appeared in Fe-Mo/Si3N4 cermets with Y2O3-MgO additives. The results show that Y2O3-MgO additives can effectively optimize the microstructures of Fe-Mo/ Si3N4 cermets, and improve the material mechanical properties. Therefore, it indicated that Y2O3-MgO additives can be used for strengthening of eintered cermets, and the dual function of whiskers self-toughening and different metal-composition toughening can be achieved in Fe-Mo/Si3N4 cermets with Y2O3-MgO additives.
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| 关 键 词： | 非均相沉淀 Si3N4粉体 热还原法 烧结 金属陶瓷 制备 添加剂 还原合成 |
| 收稿时间： | 2012-05-08 |
Effect of Y2O3-MgO Addition on Heterogeneous Precipitation-Thermal Reduction Synthesis and Sintering of Fe-Mo/Si3N4 Powders |
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| Ruiming Yin,Fubao Ji,Qinglin Hou,Fusheng Liu,Jing Li,Linzhang Chen. Effect of Y2O3-MgO Addition on Heterogeneous Precipitation-Thermal Reduction Synthesis and Sintering of Fe-Mo/Si3N4 Powders[J]. Journal of Materials Science & Technology, 2014, 30(3): 285-289. DOI: 10.1016/j.jmst.2013.05.010 |
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| Authors: | Ruiming Yin Fubao Ji Qinglin Hou Fusheng Liu Jing Li Linzhang Chen |
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| Affiliation: | College of Metallurgical Engineering, Hunan University of Technology, Zhuzhou 412008, China |
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| Abstract: | Y2O3--MgO addition Fe-Mo/Si3N4 Metal-composition Whiskers self-toughening |
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| Keywords: | Y2O3--MgO addition Fe-Mo/Si3N4 Metal-composition Whiskers self-toughening |
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