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| 反应熔渗法制备纳米 MoSi2-SiC复合材料 | |
| 引用本文： | 张小立,金志浩,冯耀荣,赵文轸,吕振林,霍春勇.反应熔渗法制备纳米 MoSi2-SiC复合材料[J].无机材料学报,2007,22(4):690-694. |
| 作者姓名： | 张小立 金志浩 冯耀荣 赵文轸 吕振林 霍春勇 |
| 作者单位： | 1. 中原工学院,材料与化学工程系,郑州,450007 2. 西安交通大学,材料科学与工程学院,西安,710049 3. 中国石油天然气集团公司,管材研究所,西安,710065 4. 西安理工大学,材料科学与工程学院,西安,710048 |
| 摘 要： | 运用Mo＋C坯体反应溶渗法，可以得到MoSi2-SiC复合材料，其基体相晶粒尺寸为150-600nm，反应生成的SiC相分布均匀，大小为30-160nm之间．该纳米MoSi2-SiC复合材料强度为214．8MPa，断裂韧性为4．1MPa·m^1／2，力学性能远高于单相材料．透射电镜研究表明，在复合材料中存在大量的层错和一些位错，也有孪晶存在． |
| 关 键 词： | 纳米复合材料 力学性能 反应熔渗法 |
| 文章编号： | 1000-324X（2007）04-0690-05 |
| 收稿时间： | 2006-8-17 |
| 修稿时间： | 2006-08-17 |
Preparation and Microstructure of Nano MoSi2-SiC Composite by Melt Infiltration Process |
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| ZHANG Xiao-Li,JIN Zhi-Hao,FENG Yao-Rong,ZHAO Wen-Zhen,L Zhen-Lin,HUO Chun-Yong.Preparation and Microstructure of Nano MoSi2-SiC Composite by Melt Infiltration Process[J].Journal of Inorganic Materials,2007,22(4):690-694. | |
| Authors: | ZHANG Xiao-Li JIN Zhi-Hao FENG Yao-Rong ZHAO Wen-Zhen L Zhen-Lin HUO Chun-Yong |
| Affiliation: | 1.DepartmentofMaterialsandChemicalEngineering,ZhongyuanUniversityofTechnology,Zhengzhou450007,China;2.StateKeyLaboratoryforMechanicalBehaviorofMaterials,Xi'anJiaotongUniversity,Xi'an710049,China;3.CNPCResearchInstituteofTubularGoods,Xi'an710065,China;4.SchoolofMaterialsScienceandEngineering,Xi'anUniversityofTechnology,Xi'an710048,China |
| Abstract: | MoSi2-SiC composite was successfully prepared by Si melt infiltration into Mo+C preforms. The crystal grain size of the resultant matrix is 150-600nm, and the size of SiC phase produced is 30-160nm which disperses homogeneously in the matrix. The strength of the composite is 214.8MPa, the toughness is 4.1MPa·m1/2, these mechanical properties are higher than that of single phase MoSi2. TEM results show lots of stacking faults, some dislocations, and twins existing in the composite. |
| Keywords: | MoSi2-SiC |
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