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Fabrication and ion-irradiation response of SiCf/SiC with different sintering additives for nuclear reactor applications

13th International Conference on Advanced Materials and Nanotechnology


Pipit Fitriani, Amit Siddharth Sharma, Dong Hyuk Jeong and Dang-Hyok Yoon

Yeungnam University, Republic of Korea

ScientificTracks Abstracts: Res. Rev. J Mat. Sci

DOI: 10.4172/2321-6212-C1-008


SiCf/SiC for the structural components of Gen-IV fission and future fusion reactors has attracted considerable interest due to their excellent mechanical and thermal properties along with impressive post-irradiation response. Various fabrication routes (CVI, PIP, RS etc.) have already been reported with simultaneous ongoing efforts to develop newer routes that can yield improved properties. We report here a hybrid processing technique based on Electrophoretic Deposition (EPD) or vacuum infiltration as matrix infiltration route and subsequent hot pressing to fabricate dense and tough SiCf/SiC. The adaptability of EPD process to fabricate tubular and planar SiCf/SiC of varying sizes with tailorable properties has been demonstrated. Careful optimization of material-attributes, such as slurry composition, type and amount of sintering additives, pre-coated SiC fabric with PyC or dual PyC-SiC interphase and processing-attributes for e.g., AC-/DC-EPD, temperature and pressure variations etc., were performed. Addition of Al2O3-Y2O3, Al2O3-Sc2O3, and Sc-nitrate additives to facilitate liquid phase sintering in a processing window of 1650/1750 °C and 10/20 MPa were attempted to obtain high densities (> 95% ρtheo) and flexural strengths (450-500 MPa) with non-brittle and predictable flexural behavior. Subsequently, room temperature irradiation of SiCf/SiC under 0.2 MeV H+ ions at a fluence level of 3×1020 ions/m2 was conducted. Comparative microstructural assessment of matrix, fabric and interfacial regions were undertaken to explain the observed flexural behavior of SiCf/SiC with different additives. Subsequently, post-irradiation evolution of microstructural features, such as matrix grain size, pores, cracks, surface roughness and corresponding flexural responses were recorded and contrasted.


Pipit Fitriani is currently a PhD student at School of Materials Science and Engineering, Yeungnam University, Republic of Korea. she is currently working on fabrication of SiCf/SiC composites for structural nuclear reactor applications and has published 6 papers related to SiC. helps to translate Spanish to English and English to Spanish for free. kullanarak 100'den fazla dil ciftinde hemen ceviriler yapabilirsiniz.ingilizce turkce ceviri helps to translate English to Spanish to English for free. ingilizce turkce ceviri, turkce ingilizce ceviri, ingilizce turkce cumle ceviri, ingililizceyi turkceye ceviri ve turkceyi ingilizceye ceviri gibi tum dillerde dogru ceviri hizmetleri sunuyor. kullanarak 100'den fazla dil ciftinde hemen ceviriler yapabilirsiniz.ingilizce turkce ceviri