Characterization of MeV Ion-Irradiated SiCf/SiC Composites Prepared with Different Methods

Ji Yeon Park; Seok Min Kang; Weon Ju Kim; Akira Kohyama

doi:10.4028/www.scientific.net/AMR.59.257

Paper Titles

Materials for Advanced Gas-Cooled Nuclear Systems
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Materials for the Very High Temperature Reactor-Results and Progress within the Fifth and Sixth Framework Programmes
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Atomistic Simulation of ½<111> Screw Dislocations in BCC Tungsten
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Ab-Initio Modelling of Point Defect-Impurity Interaction in Tungsten and other BCC Transition Metals
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Characterization of MeV Ion-Irradiated SiC_f/SiC Composites Prepared with Different Methods
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Numerical Simulation and Experimental Analysis of Laser Surface Remelting of AISI 420 Stainless Steel Samples
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Microcharacterization of Damage in Materials for Advanced Nuclear Fission Plants
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Preparation of Polymer-Nanodiamond Composites with Improved Properties
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Microstructure and Properties of SiC Nanowire-Reinforced SiC_f/SiC Composites
p.279

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 59Characterization of MeV Ion-Irradiated SiCf/SiC...

Characterization of MeV Ion-Irradiated SiC_f/SiC Composites Prepared with Different Methods

Abstract:

To estimate the ion-irradiation effect on various types of SiCf/SiC composites, a silicon self-ion irradiation was performed at temperatures of 600 °C and 1200 °C and at doses of 5 dpa and 20 dpa, respectively. These SiCf/SiC composites were prepared by different processes such as CVI (chemical vapor infiltration), WA-CVI (SiC whisker assisted CVI) and hot-pressing (HP) method. Hardness was measured by a nano-indentation tester and microstructural changes were observed by TEM with SAD(selected area diffraction) technique for the specimens prepared by FIB (Focused Ion Beam) milling. The damage dose was calculated by the SRIM2003 code and then compared with microstructureal observation.