416 The mechanical properties of SiC_f/SiC composites fabricated by advanced melt infiltration method.

2013 ◽  
Vol 2013.21 (0) ◽  
pp. _416-1_-_416-5_
Author(s):  
Yosuke OKUBO ◽  
Toyohiko YANO ◽  
Katsumi YOSHIDA ◽  
Takuya AOKI ◽  
Toshiyuki OGASAWARA
2009 ◽  
Vol 620-622 ◽  
pp. 371-374 ◽  
Author(s):  
Ji Ping Wang ◽  
Min Lin ◽  
Yong Hui Zhang ◽  
Zhuo Xu ◽  
Zhi Hao Jin

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).


Author(s):  
Gyeongran Shim ◽  
Soo-Hyun Kim ◽  
Seyoung Kim ◽  
In-Sub Han ◽  
Hyung-Joon Bang ◽  
...  

2004 ◽  
Vol 261-263 ◽  
pp. 1445-1450
Author(s):  
Dong Su Bae ◽  
Dong Young Son ◽  
Sang Ll Lee ◽  
Hong Sik Park ◽  
Kwang Soo Kim ◽  
...  

Four kinds of raw C/C composites with a density between 1.25~1.66g/㎤ were used in order to investigate the effect of the initial porosity of C/C composites on mechanical properties of liquid silicon infiltrated C/SiC composites. The microstructure observation, image analysis and flexural strength test of the composites were performed. The density and microstructural changes with the variation of the initial porosity was discussed in the terms of the infiltration behavior of liquid silicon and the reaction between liquid silicon and matrix carbon.


2015 ◽  
Vol 816 ◽  
pp. 71-77
Author(s):  
Jing Wang ◽  
Ying Bin Cao ◽  
Dong Lin ◽  
Rong Jun Liu ◽  
Chang Rui Zhang

C/C-SiC composites were prepared by reactive melt infiltration process at different temperatures. The composition, microstructures and mechanical properties of the composites were investigated. The results showed that infiltration temperature could affect composite’s properties through regulating the chemical composition and interfacial bonding strength of the composites. The C/C-SiC composite prepared at 1650°C exhibited the relatively highest performance with density of 2.24 g·cm-3 and SiC content of 31.44 vol.%. The flexural strength and the fracture toughness were 238MPa and 10.04 MPa·m1/2, respectively.


2013 ◽  
Vol 2013 (0) ◽  
pp. _S042014-1-_S042014-4
Author(s):  
Takeki HARA ◽  
Masashi Ishikawa ◽  
Yasuo KOGO ◽  
Takuya AOKI ◽  
Toshio OGASAWARA

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