Strength of a Hi-Nicalon™/Silicon-Carbide-Matrix Composite Fabricated by the Multiple Polymer Infiltration-Pyrolysis Process

2004 ◽  
Vol 82 (6) ◽  
pp. 1579-1581 ◽  
Author(s):  
Michio Takeda ◽  
Yutaka Kagawa ◽  
Shiro Mitsuno ◽  
Yoshikazu Imai ◽  
Hiroshi Ichikawa
Keyword(s):  
Silicon Carbide ◽  
Matrix Composite ◽  
Pyrolysis Process ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix ◽  
Polymer Infiltration

Silicon Carbide and Uranium Oxide Based Composite Fuel Preparation Using Polymer Infiltration and Pyrolysis

2006 ◽  
Author(s):  
Abhishek K. Singh ◽  
Suraj C. Zunjarrao ◽  
Raman P. Singh
Keyword(s):  
Silicon Carbide ◽  
Uranium Oxide ◽  
Chemical Interaction ◽  
Processing Technique ◽  
Spherical Particles ◽  
Ceramic Yield ◽  
Processing Scheme ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix ◽  
Polymer Infiltration

Ceramic composite pellets consisting of uranium oxide, U3O8, particles in a silicon carbide matrix are fabricated using a novel processing technique based on polymer infiltration and pyrolysis (PIP). In this process, spherical particles of depleted uranium oxide, in the form of U3O8, are dispersed in liquid allylhydridopolycarbosilane (AHPCS), and subjected to pyrolysis up to 900°C under a continuous flow of ultra high purity (UHP) argon. Pyrolysis of AHPCS produces near-stoichiometric amorphous SiC at 900°C. Multiple polymer infiltration and pyrolysis (PIP) cycles are required to minimize open porosity and densify the silicon carbide matrix, in order to enhance the mechanical strength of the material. Structural characterization is carried out after first pyrolysis to investigate chemical interaction between U3O8 and SiC. The physical and mechanical properties are also quantified, and it is shown that this processing scheme promotes uniform distribution of uranium fuel source along with a high ceramic yield of the parent matrix. Furthermore, the processing technique involves lower energy requirements than conventional sintering processes currently in practice.

scholarly journals Development of Continuous Fiber Reinforced Reaction Sintered Silicon Carbide Matrix Composite and Fabrication of Gas Turbine Hot Parts.

Materia Japan ◽  
2000 ◽  
Vol 39 (1) ◽  
pp. 63-65 ◽  
Author(s):  
Yoshiyasu Itoh ◽  
Tuneji Kameda ◽  
Shoko Suyama ◽  
Katsutoshi Nishida ◽  
Takanari Okamura
Keyword(s):  
Silicon Carbide ◽  
Gas Turbine ◽  
Matrix Composite ◽  
Fiber Reinforced ◽  
Continuous Fiber ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix ◽  
Sintered Silicon

Effect of titanium coating on anti-oxidation properties of carbon fibre reinforced silicon carbide matrix composite

2008 ◽  
Vol 23 (3) ◽  
pp. 161-164 ◽  
Author(s):  
X. H. Zheng ◽  
Y. G. Du ◽  
J. Y. Xiao ◽  
J. S. Hu ◽  
Y. F. Lu ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Carbon Fibre ◽  
Matrix Composite ◽  
Titanium Coating ◽  
Carbide Matrix ◽  
Oxidation Properties ◽  
Silicon Carbide Matrix

Stressed Oxidation Life for a Carbon Fiber Reinforced Silicon Carbide Matrix Composite

2002 ◽  
Author(s):  
Anthony Calomino ◽  
Michael Verrilli ◽  
David J. Thomas
Keyword(s):  
Silicon Carbide ◽  
Carbon Fiber ◽  
Matrix Composite ◽  
Chemical Vapor Infiltration ◽  
Time Interval ◽  
Fiber Reinforced ◽  
Environmental Models ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix ◽  
Carbon Fiber Reinforced

Stress-rupture life and residual strength results obtained for a carbon fiber reinforced silicon carbide matrix composite are presented. The material used in this study had a chemical vapor infiltration silicon carbide matrix reinforced by T-300 carbon fibers in a two-dimensional woven cloth, with a plain weave architecture. Tests were conducted in a reduced oxygen environment of 1000 ppm O2/Ar at 1200 °C. The results from two sets of twenty creep rupture tests performed at a fixed stress are presented and discussed. In the first test set, specimens were run to failure. In the second set, rupture testing was interrupted after a fixed time interval and retained strengths were then measured. The results of this study reveal a simple deterministic relationship between the retained strength and residual life of the ceramic composite when exposed to the oxidative environment. Creep life was also observed to increase for specimens with wider tests section widths. Microstructural examination revealed damage mechanisms in the form of fiber oxidation and this points to the need for developing environmental models for predicting life of a component manufactured with this material.

Carbon Dioxide Laser Cutting of a Carbon-Fiber-Silicon Carbide-Matrix Composite

1994 ◽  
Vol 77 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Mladen F. Trubdja ◽  
Sriram Ramanathan ◽  
Michael F. Modest ◽  
Vladimir S. Stubican
Keyword(s):  
Carbon Dioxide ◽  
Silicon Carbide ◽  
Carbon Fiber ◽  
Matrix Composite ◽  
Laser Cutting ◽  
Carbon Dioxide Laser ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix
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