Rolling compacted fabrication of carbon fiber reinforced ultra-high temperature ceramics with highly oriented architectures and exceptional mechanical feedback

2018 ◽  
Vol 44 (12) ◽  
pp. 14907-14912 ◽  
Author(s):  
Ping Hu ◽  
Yuan Cheng ◽  
Peng Wang ◽  
Xiang Guo ◽  
Chen Ma ◽  
...  
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Fiber Reinforced ◽  
Ultra High Temperature Ceramics ◽  
Carbon Fiber Reinforced ◽  
Ultra High Temperature ◽  
Mechanical Feedback

Reactive Melt Infiltration of Carbon Fiber Reinforced Ceramic Composites for Ultra-High Temperature Applications

2013 ◽  
pp. 323-353
Author(s):  
Bai Shuxin ◽  
Tong Yonggang ◽  
Ye Yicong ◽  
Zhang Hong
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Chemical Vapor Infiltration ◽  
Future Research ◽  
Fiber Reinforced ◽  
Melt Infiltration ◽  
Carbon Fiber Reinforced ◽  
Reactive Melt Infiltration ◽  
Reactive Melt ◽  
Ultra High Temperature

Carbon fiber reinforced ultra high temperature ceramic matrix composite (C/UHTC) is one of the most promising structural materials capable of prolonged operation in oxidizing environment at ultra high temperatures above 2000 ?C. Reactive melt infiltration (RMI) is a viable processing choice for C/UHTC composite. Compared with chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP), RMI does not suffer from the drawbacks of time-consuming and high cost. It is viewed as a promising means of achieving near-net shape manufacturing with quick processing time and at low cost. Recently, great efforts have been made on RMI process for C/UHTC composite. Carbon fiber reinforced ZrC, HfC and TiC composites have been successfully fabricated by RMI. The aim of the following chapter is to introduce the RMI process and summarize the progress in RMI process for C/UHTC composite. In addition, future research directions of RMI are also proposed.

Preparation and Assessment of C/C-ZrB2-SiC Ultra-High Temperature Ceramics

2012 ◽  
Vol 512-515 ◽  
pp. 719-722 ◽  
Author(s):  
Jie Fan ◽  
Chang Ling Zhou ◽  
Chong Hai Wang ◽  
Yan Yan Wang ◽  
Rui Xiang Liu
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Thermal Protection ◽  
Chemical Vapor ◽  
Pyrolytic Carbon ◽  
Composite Ceramic ◽  
Chemical Vapor Infiltration ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
Ultra High Temperature

With the background of thermal protection applications of anti-oxidation carbon fiber reinforced composites, carbon fiber reinforced ultra-high temperatureceramics with homogeneous disperse complex matrix of C-ZrB2-SiC (C/C-ZrB2-SiC) was prepared. Carbon fiber performs were deposited with pyrolytic carbon by chemical vapor infiltration method. Subsequently, the composite precursors were prepared by completely mutually dissolving of ZrB2 polymeric precursor and polycarbosilane dimethylbenzene solution. Then the nano-dispersed ZrB2-SiC composite ceramic was introduced into the C/C preforms by polymer impregnant and pyrolysis process. The C/C-ZrB2-SiC composite shows excellent ablation behavior with the ablating rate of 8*10-4mm/s. The microstructural and compositional characterizations of the C/C-ZrB2-SiC composites indicates that ZrB2 nanoparticle is distributed homogeneously in the continuous SiC phase, which is beneficial to enhance ultra-high temperature ablation resistance of the composites.

Modification of the Fiber-Matrix Interface in the Carbon Fiber Reinforced ZrB2- Based Ultra-High Temperature Ceramic Composites

2018 ◽  
Vol 281 ◽  
pp. 349-354 ◽  
Author(s):  
Yu Fei Zu ◽  
Jian Li ◽  
Ji Xiang Dai ◽  
Jian Jun Sha
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Interfacial Reaction ◽  
Ceramic Composites ◽  
Fiber Reinforced ◽  
Processing Methods ◽  
The Matrix ◽  
Fiber Matrix ◽  
Carbon Fiber Reinforced ◽  
Ultra High Temperature

Carbon fiber reinforced ultra-high temperature ceramic composite (Cf/UHTC) is a typical structural material currently used for aero-engine parts, hot gas valve parts, and thermal protection systems. However, for Cf/UHTC, one of the key issues is that the carbon fibers may be prone to react with the matrix of UHTC during the high-temperature sintering process. This paper mainly focused on restraining the serious fiber-matrix interfacial reaction. The carbon fiber reinforced ZrB2-based composite (Cf/ZrB2-based composite) was selected as the research material in the current work. Some processing methods were adopted to restrain the fiber-matrix interfacial reaction. Microstructure analysis, element distribution, and phase composition were characterized by using scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD), respectively. The results indicated that the matrix/fiber interfacial reaction in the Cf/ZrB2-based composite was closely related to the processing methods.

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