Preparation and characterization of ZrB 2 and TaC containing C f /SiC composites via Polymer-Infiltration-Pyrolysis process

2017 ◽  
Vol 37 (5) ◽  
pp. 1955-1960 ◽  
Author(s):  
Franziska Uhlmann ◽  
Christian Wilhelmi ◽  
Stephan Schmidt-Wimmer ◽  
Steffen Beyer ◽  
Claudio Badini ◽  
...  
Keyword(s):  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration

Fabrication and Properties of Cf/Ti3SiC2-SiC Composites Using Ti3SiC2 as Inert Filler

2012 ◽  
Vol 512-515 ◽  
pp. 681-684 ◽  
Author(s):  
Jin Shan Yang ◽  
Shao Ming Dong ◽  
Ping He ◽  
Qing Gang Li ◽  
Bin Wu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Bending Strength ◽  
Chemical Resistance ◽  
Ceramic Matrix ◽  
Xrd Analysis ◽  
Low Density ◽  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration

Because of its combined characteristics of metals and ceramics, such as low density, high Young’s modulus, thermal and chemical resistance with low hardness, high electrical and thermal conductivity, it was expected that the introduction of Ti3SiC2 to fiber reinforced ceramic matrix can make the composite own some unique properties. In the present research, Ti3SiC2 powders used as inert fillers were fabricated by the in-situ reaction between Ti and polycarbosilane mixtures. The purity of Ti3SiC2 powders analyzed by XRD was determined by RIR method, which is a semi-quantitative XRD analysis. The results showed that the purity of Ti3SiC2 powders is about 96%. Cf/Ti3SiC 2-SiC composites are obtained by polymer infiltration and pyrolysis process using Ti3SiC2 powders as the inert fillers. The bending strength of Cf/Ti3SiC2-SiC composites was about 160 MPa.

Preparation and Properties of 2D Carbon Cloth Reinforced Ultra-High Temperature Ceramic Matrix Composites

2008 ◽  
Vol 368-372 ◽  
pp. 1050-1052 ◽  
Author(s):  
Yong Lian Zhou ◽  
Hai Feng Hu ◽  
Yu Di Zhang ◽  
Qi Kun Wang ◽  
Chang Rui Zhang
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Carbon Cloth ◽  
Matrix Composites ◽  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration ◽  
Ultra High Temperature

In this paper the preparation of carbon fiber reinforced ultra-high temperature ceramic matrix composites was reported. Polymer infiltration and pyrolysis process was used to prepare 2D C/TaC-SiC, C/NbC-SiC, and C/ZrC-SiC composites. The fracture strengths of all the samples were around 300MPa and toughness around 10MPa-m1/2. Standard oxyacetylene torch tests (>3000°C, 30s) showed that the minimum ablative rate of 2D C/SiC-ZrC was as low as 0.026 mm/s, much smaller than that of 2D C/SiC composites (0.088mm/s).

Preparation of C/C-SiC Composite with Hydrogen-Containing Polysiloxane as Ceramic Precursor

2011 ◽  
Vol 239-242 ◽  
pp. 2932-2936
Author(s):  
Meng Jiao Gao ◽  
Lai Chen ◽  
Yong Sheng Hua ◽  
Jia Bao Zhang ◽  
Jian Feng Pan ◽  
...  
Keyword(s):  
Pyrolysis Temperature ◽  
Ablation Rate ◽  
Cross Linking ◽  
Pyrolysis Process ◽  
Ceramic Precursor ◽  
Pyrolysis Method ◽  
Linear Ablation ◽  
Sic Composites ◽  
Polymer Infiltration

This study focuses on the conditions of preparation of C/C-SiC composites through polymer infiltration and pyrolysis method using hydrogen-containing polysiloxane as the precursor and divinylbenzene as cross-linking agent. The densities of different C/C composites (ρ=1.02, 1.21, 1.60, 1.78g·cm-3) increased to 1.24, 1.36, 1.69, 1.84g·cm-3respectively after infiltration and pyrolysis four times. The appropriate ratio of hydrogen-containing polysiloxane and divinylbenzene was 1/0.5. The appropriate cross-linking temperature was 250°C. In pyrolysis process, the appropriate increasing rate of pyrolysis temperature should be 50°C/h in the range of 300-800°C. SiC was formed when pyrolysis temperature reached 1550°C.The linear ablation rate and mass ablation rate of C/C-SiC composites were much lower than those of C/C composites.

scholarly journals KD-S SiCf/SiC composites with BN interface fabricated by polymer infiltration and pyrolysis process

2018 ◽  
Vol 7 (2) ◽  
pp. 169-177 ◽  
Author(s):  
Honglei Wang ◽  
Shitao Gao ◽  
Shuming Peng ◽  
Xingui Zhou ◽  
Haibin Zhang ◽  
...  
Keyword(s):  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration

Preparation and properties of 3D needle-punched C/ZrC–SiC composites by polymer infiltration and pyrolysis process

2014 ◽  
Vol 40 (7) ◽  
pp. 10961-10970 ◽  
Author(s):  
Chunlei Yan ◽  
Rongjun Liu ◽  
Yingbin Cao ◽  
Changrui Zhang ◽  
Deke Zhang
Keyword(s):  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration

Ablation behavior and mechanism of C/ZrC, C/ZrC–SiC and C/SiC composites fabricated by polymer infiltration and pyrolysis process

2014 ◽  
Vol 86 ◽  
pp. 131-141 ◽  
Author(s):  
Chunlei Yan ◽  
Rongjun Liu ◽  
Yingbin Cao ◽  
Changrui Zhang ◽  
Deke Zhang
Keyword(s):  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration

Characterization of reactive spark plasma sintered (Zr,Ti)B2–ZrC–SiC composites

2021 ◽  
Vol 119 ◽  
pp. 187-195 ◽  
Author(s):  
Abbas Sabahi Namini ◽  
Seyed Ali Delbari ◽  
Mehdi Shahedi Asl ◽  
Quyet Van Le ◽  
Mohammadreza Shokouhimehr
Keyword(s):  
Spark Plasma ◽  
Sic Composites

Online-Joining of C/SiC-C/SiC via Slurry Reaction and Precursor Infiltration and Pyrolysis Process with C/SiC Pins

2012 ◽  
Vol 531-532 ◽  
pp. 135-140 ◽  
Author(s):  
Yu Di Zhang ◽  
Hai Feng Hu ◽  
Chang Rui Zhang ◽  
Guang De Li
Keyword(s):  
Shear Strength ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Fracture Mode ◽  
Pyrolysis Process ◽  
Strong Bond ◽  
Sic Composites ◽  
Maximum Shear Strength ◽  
Application Prospects ◽  
Complex Components

C/SiC composites have widely application prospects in the field of aeronautic and aerospace for their excellent properties. The joining of C/SiC composites is a key to fabricate large and complex components. In this paper, 1D C/SiC pins were prepared by precursor infiltration and pyrolysis (PIP) process and used to join C/SiC composites by Slurry react (SR) and PIP process. The shear strength of the C/SiC pins with different carbon fiber volumes was investigated with the maximum shear strength as high as 339.46MPa. Influences of C/SiC pins on the joining properties of C/SiC composites were studied. The shear strength and flexural strength of C/SiC-C/SiC joining are improved from 9.17MPa and 30.41MPa without pins to 20.06MPa and 75.03MPa with one C/SiC pin (diameter 2mm), respectively. The reliability of C/SiC-C/SiC joining is also improved with C/SiC pins in that the fracture mode changes from catastrophic without pins to non-catastrophic. The SEM photos show a strong bond between joining layer and C/SiC composites without obvious interface.

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