scholarly journals Density improvement of silicon nanocrystals embedded in silicon carbide matrix deposited by hot-wire CVD

2013 ◽  
Vol 228 ◽  
pp. 148-153 ◽  
Author(s):  
Kaifeng Bi ◽  
Yanhong Liu ◽  
Kun Liu ◽  
Jiwen Jiang ◽  
Wei Peng
Keyword(s):  
Silicon Carbide ◽  
Silicon Nanocrystals ◽  
Hot Wire ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix

scholarly journals Growth of silicon quantum dots by oxidation of the silicon nanocrystals embedded within silicon carbide matrix

AIP Advances ◽  
2014 ◽  
Vol 4 (10) ◽  
pp. 107106 ◽  
Author(s):  
Arindam Kole ◽  
Partha Chaudhuri
Keyword(s):  
Quantum Dots ◽  
Silicon Carbide ◽  
Silicon Nanocrystals ◽  
Silicon Quantum Dots ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix

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.

Hot Isostatic Pressing of Particle- and Whisker-Reinforced Silicon Carbide Matrix Composites

1995 ◽  
Vol 108-110 ◽  
pp. 45-52 ◽  
Author(s):  
Ji Hong She ◽  
Dong Liang Jiang ◽  
Shou Hong Tan ◽  
Jing Kun Guo
Keyword(s):  
Silicon Carbide ◽  
Hot Isostatic Pressing ◽  
Matrix Composites ◽  
Isostatic Pressing ◽  
Carbide Matrix ◽  
Silicon Carbide Matrix

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
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