Peng, Yuqing Li, Zhiwei Li, Aijun Wang, Qifan Bai, Ruicheng Zhang, Fangzhou
Published in
Science and Engineering of Composite Materials
The C/C–SiC composites were fabricated by the liquid silicon infiltration method. The mechanical and tribological properties of C/C–SiC composites were assessed and compared based on different C/C densities and the carbon fiber textile architecture. The results demonstrated that the bending and shear strengths of C/C–SiC were lower than those of C/...
Shima, Kohei Otaka, Yuhei Sato, Noboru Funato, Yuichi Fukushima, Yasuyuki Momose, Takeshi Shimogaki, Yukihiro
Published in
ACS applied materials & interfaces
Conformal chemical vapor deposition (CVD) of silicon carbide (SiC) from methyltrichlorosilane (MTS) and hydrogen (H2) onto high-aspect-ratio (HAR; typically >100:1) three-dimensional features has been a challenge in the fabrication of ceramic matrix composites. In this study, the impact of heterogeneous underlayers on the initial nucleation of SiC-...
Huang, Bo Tan, Zhe
Published in
Frontiers in Chemistry
The host-guest chemistry of metal–organic frameworks (MOFs) has been attracting increasing attention owing to the outstanding properties derived from MOFs-guests combinations. However, there are large difficulties involved in the syntheses of the host-guest MOF systems with air-sensitive metal complexes. In addition, the behaviors on host-guest int...
Chen, Chao Liu, Yongsheng Yue, Wei Ye, Fang Wang, Jing Zeng, Qingfeng
Published in
Frontiers in Materials
Wave-transparent ceramic composites with excellent comprehensive performances are of particular significance for the development of space vehicles. In this study, Si3N4w was prepared by the gel-casting process and then combined with chemical vapor infiltration (CVI)-obtained Si3N4 to yield Si3N4w/Si3N4 composites with five Si3N4w volume fractions. ...
Jian, Xian Tian, Wei Li, Jinyao Deng, Longjiang Zhou, Zuowan Zhang, Li Lu, Haipeng Yin, Liangjun Mahmood, Nasir
Published in
ACS applied materials & interfaces
Most microwave absorbers lose their function under harsh working conditions, such as a high temperature and an oxidative environment. Here, we developed a heterogeneous ZrN0.4B0.6/SiC nanohybrid via combined catalytic chemical vapor deposition (CCVD) and chemical vapor infiltration (CVI) processes using ZrB2 as the starting material. The compositio...
Hu, Chunxia Li, Hejun Zhang, Shouyang Li, Wei Li, Ni
Published in
Science China Materials
A complete mechanism of methane pyrolysis is proposed for chemical vapor infiltration of pyrocarbon with different textures, which contains a detailed homogeneous mechanism for gas reactions and a lumped heterogeneous mechanism for pyrocarbon deposition. This model is easily applied to simulate gas compositions and pyrocarbon deposition in a vertic...
Maille, L. Guette, A. Pailler, R. Le Petitcorps, Y. Weisbecker, P.
Published in
Powder Metallurgy and Metal Ceramics
This paper reports on the development of a new process for the fabrication of a C/C composite for aeronautic and aerospace industries, in order to reduce the infiltration time of the carbon perform. The infiltration of a carbon fibrous preform by means of a hydrocarbon in the supercritical fluid state is done at high temperature in order to obtain ...
mf(李密锋), li
Zhang, Zezhi Jiang, Zhenxi Wang, Liucheng Li, Chengwei Wang, Fu-an
Published in
Coke and Chemistry
To solve the energy-saving and emission-reduction problem which caused by the deterioration of the thermal properties of coke in blast furnace and to improve the technologies applied to the inhibition to coke deterioration, benzene pyrolysis carbons were used to infiltrate into coke to inhibit coke deterioration for improving the thermal properties...
