TiC-Al2O3-Fe复合材料的微观组织研究

无机材料学报, 2001, 16(1): 173-177. doi: 10.3321/j.issn:1000-324X.2001.01.030

TiC-Al2O3-Fe复合材料的微观组织研究

张卫方 ^1, , 陶春虎 ^2, , 习年生 ^3, , 韩杰才 ^4, , 杜善义 ^5,

1.北京航空材料研究院,

2.北京航空材料研究院,

3.北京航空材料研究院,

4.哈尔滨工业大学复合材料研究所,

5.哈尔滨工业大学复合材料研究所,

关键词： SHS/PHIP , TiC-Al2O3-Fe复合材料 , 微观组织 , 胞状结构

Microstructures of TiC-Al2O3-Fe Composites Prepared by SHS/PHIP

对SHS/PHIP技术制备出的TiC-Al2O3-Fe复合材料的微观组织结构进行了分析和研究. 结果表明，随着Fe含量的增加，TiC颗粒尺寸减小, Al2O3的分布趋于均匀. 在TiC晶粒中发现少量颗粒相；在Fe粘结相中发现具有ε-AlFe3C0.69型结构的胞状相；TiC晶粒中存在大量位错.

The microstructure of TiC-Al2O3-Fe composites prepared by SHS/PHIP was studied. As the Fe content was increased, the particle size of TiC decreased, and the distribution of Al2O3 became homogeneous. There existed a little of particle phase in TiC grains. While some of ε-(AlTi)Fe3Cx cellular phase with ε-AlFe3C0.69 structure was found in Fe-binder phase. A great deal of dislocation were observed in TiC grains because of the rapid pressing in the process of SHS/PHIP.

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