Microstructure and mechanical properties of three dimensional Cf/SiC-ZrC-ZrB2 composites prepared by reactive melt infiltration method

2016 ◽  
Vol 36 (16) ◽  
pp. 3969-3976 ◽  
Author(s):  
Xiaowu Chen ◽  
Shaoming Dong ◽  
Yanmei Kan ◽  
Xihai Jin ◽  
Haijun Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Three Dimensional ◽  
Microstructure And Mechanical Properties ◽  
Melt Infiltration ◽  
Reactive Melt Infiltration ◽  
Reactive Melt ◽  
Infiltration Method

Influence of the Porosity of C/C on the Characterization of C/C-SiC Composites Prepared by Reactive Melt Infiltration Method

2009 ◽  
Vol 620-622 ◽  
pp. 371-374 ◽  
Author(s):  
Ji Ping Wang ◽  
Min Lin ◽  
Yong Hui Zhang ◽  
Zhuo Xu ◽  
Zhi Hao Jin
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
The Matrix ◽  
Melt Infiltration ◽  
Lower Porosity ◽  
Sic Composites ◽  
Reactive Melt Infiltration ◽  
Reactive Melt ◽  
Infiltration Method

C/C-SiC composites were rapidly fabricated using C/C with four different porosities in the range of 12.4%~45.7% and silicon by reactive-melt-infiltrated (RMI) method. The influence of the C/C porosity on the Si infiltration during the processing and on the microstructure and mechanical properties of the resulting C/C-SiC were investigated. The results show that β-SiC was formed by Si/C reaction and free Si remained in the composites. A higher porosity of C/C leads more Si infiltrating to the preform and produces higher density of C/C-SiC with lower porosity. The flexural strength of the composites was strong influenced by the matrix content and the interface between different phases. C/C-SiC derived from C/C with 24.8% porosity has the highest flexural strength (325.1MPa).

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