Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite
Abstract A carbon-fiber (Cf) doped TiB2–SiC composite was prepared and investigated to determine its densification behavior, micro/nanostructural properties, and mechanical characteristics. TiB2–25 vol% SiC–2 wt% Cf was prepared at 40 MPa and 1800 °C for 7 min using the pulsed electric-current sinte...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-27186-8 |
| _version_ | 1797958622459723776 |
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| author | Mohammadreza Shokouhimehr Seyed Ali Delbari Abbas Sabahi Namini Ehsan Taghizadeh Sunghoon Jung Jin Hyuk Cho Quyet Van Le Joo Hwan Cha Soo Young Kim Ho Won Jang |
| author_facet | Mohammadreza Shokouhimehr Seyed Ali Delbari Abbas Sabahi Namini Ehsan Taghizadeh Sunghoon Jung Jin Hyuk Cho Quyet Van Le Joo Hwan Cha Soo Young Kim Ho Won Jang |
| author_sort | Mohammadreza Shokouhimehr |
| collection | DOAJ |
| description | Abstract A carbon-fiber (Cf) doped TiB2–SiC composite was prepared and investigated to determine its densification behavior, micro/nanostructural properties, and mechanical characteristics. TiB2–25 vol% SiC–2 wt% Cf was prepared at 40 MPa and 1800 °C for 7 min using the pulsed electric-current sintering technique, and a relative density of 98.5% was realized. The as-sintered composite was characterized using advanced techniques, e.g., X-ray diffractometry, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, field-emission electron probe micro-analysis, and nanoindentation. The Cf additive could remove the surface oxide layers from the TiB2 and SiC domains, thus transforming them into TiB2 and SiC. According to micro/nanostructural studies, Cf could not retain its initial structure and was eventually converted into graphite nanosheets. In addition, the prepared composite was examined using the nanoindentation technique, and the following results were obtained for the calculated hardness, elastic modulus, and stiffness values: TiB2 > SiC > TiB2/SiC interface. |
| first_indexed | 2024-04-11T00:22:36Z |
| format | Article |
| id | doaj.art-1ad5a9ca2f634ec1b9235b3850634916 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T00:22:36Z |
| publishDate | 2023-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1ad5a9ca2f634ec1b9235b38506349162023-01-08T12:12:06ZengNature PortfolioScientific Reports2045-23222023-01-0113111310.1038/s41598-022-27186-8Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf compositeMohammadreza Shokouhimehr0Seyed Ali Delbari1Abbas Sabahi Namini2Ehsan Taghizadeh3Sunghoon Jung4Jin Hyuk Cho5Quyet Van Le6Joo Hwan Cha7Soo Young Kim8Ho Won Jang9Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National UniversityDepartment of Engineering Sciences, Faculty of Advanced Technologies, University of Mohaghegh ArdabiliDepartment of Engineering Sciences, Faculty of Advanced Technologies, University of Mohaghegh ArdabiliDepartment of Mechanical and Aerospace Engineering, University of CaliforniaDepartment of Nano-bio Convergence, Korea Institute of Materials ScienceDepartment of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea UniversityDepartment of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea UniversityInnovative Enterprise Cooperation Center, Korea Institute of Science and TechnologyDepartment of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea UniversityDepartment of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National UniversityAbstract A carbon-fiber (Cf) doped TiB2–SiC composite was prepared and investigated to determine its densification behavior, micro/nanostructural properties, and mechanical characteristics. TiB2–25 vol% SiC–2 wt% Cf was prepared at 40 MPa and 1800 °C for 7 min using the pulsed electric-current sintering technique, and a relative density of 98.5% was realized. The as-sintered composite was characterized using advanced techniques, e.g., X-ray diffractometry, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, high-resolution transmission electron microscopy, field-emission electron probe micro-analysis, and nanoindentation. The Cf additive could remove the surface oxide layers from the TiB2 and SiC domains, thus transforming them into TiB2 and SiC. According to micro/nanostructural studies, Cf could not retain its initial structure and was eventually converted into graphite nanosheets. In addition, the prepared composite was examined using the nanoindentation technique, and the following results were obtained for the calculated hardness, elastic modulus, and stiffness values: TiB2 > SiC > TiB2/SiC interface.https://doi.org/10.1038/s41598-022-27186-8 |
| spellingShingle | Mohammadreza Shokouhimehr Seyed Ali Delbari Abbas Sabahi Namini Ehsan Taghizadeh Sunghoon Jung Jin Hyuk Cho Quyet Van Le Joo Hwan Cha Soo Young Kim Ho Won Jang Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite Scientific Reports |
| title | Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite |
| title_full | Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite |
| title_fullStr | Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite |
| title_full_unstemmed | Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite |
| title_short | Nanostructure and nanoindentation study of pulse electric-current sintered TiB2–SiC–Cf composite |
| title_sort | nanostructure and nanoindentation study of pulse electric current sintered tib2 sic cf composite |
| url | https://doi.org/10.1038/s41598-022-27186-8 |
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