Formation mechanism and supersonic flame erosion behavior of SiC and SiC-SiCnano single-layer oxidation protective coatings for carbon materials by reactive melt infiltration (RMI) method

2019 ◽  
Vol 159 ◽  
pp. 108136 ◽  
Author(s):  
Alireza Abdollahi ◽  
Shahla Torabi ◽  
Zia Valefi ◽  
Naser Ehsani
2020 ◽  
Vol 46 (11) ◽  
pp. 18976-18984
Author(s):  
Yuqing Gao ◽  
Yongsheng Liu ◽  
Jing Wang ◽  
Chengyu Zhang ◽  
Zbigniew Pedzich ◽  
...  

Author(s):  
Rina K. Mudanyi ◽  
Corson L. Cramer ◽  
Amy M. Elliott ◽  
Kinga A. Unocic ◽  
Qianying Guo ◽  
...  

2011 ◽  
Vol 65 (19-20) ◽  
pp. 2910-2912 ◽  
Author(s):  
Shouming Zhang ◽  
Song Wang ◽  
Wei Li ◽  
Yulin Zhu ◽  
Zhaohui Chen

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1352
Author(s):  
Qian Sun ◽  
Huifeng Zhang ◽  
Chuanbing Huang ◽  
Weigang Zhang

In this paper, we aimed to improve the oxidation and ablation resistance of carbon fiber-reinforced carbon (CFC) composites at temperatures above 2000 °C. C/C–SiC–ZrB2 ultra-high temperature ceramic composites were fabricated through a complicated liquid–solid reactive process combining slurry infiltration (SI) and reactive melt infiltration (RMI). A liquid Si–Zr10 eutectic alloy was introduced, at 1600 °C, into porous CFC composites containing two kinds of boride particles (B4C and ZrB2, respectively) to form a SiC–ZrB2 matrix. The effects and mechanism of the introduced B4C and ZrB2 particles on the formation reaction and microstructure of the final C/C–SiC–ZrB2 composites were investigated in detail. It was found that the composite obtained from a C/C–B4C preform displayed a porous and loose structure, and the formed SiC–ZrB2 matrix distributed heterogeneously in the composite due to the asynchronous generation of the SiC and ZrB2 ceramics. However, the C/C–SiC–ZrB2 composite, prepared from a C/C–ZrB2 preform, showed a very dense matrix between the fiber bundles, and elongated plate-like ZrB2 ceramics appeared in the matrix, which were derived from the dissolution–diffusion–precipitation mechanism of the ZrB2 clusters. The latter composite exhibited a relatively higher ZrB2 content (9.51%) and bulk density (2.82 g/cm3), along with lower open porosity (3.43%), which endowed this novel composite with good mechanical properties, including pseudo-plastic fracture behavior.


2018 ◽  
Vol 44 (7) ◽  
pp. 8314-8321 ◽  
Author(s):  
Zhe Zhou ◽  
Zexu Sun ◽  
Yicheng Ge ◽  
Ke Peng ◽  
Liping Ran ◽  
...  

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