Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites
The effectiveness and improvement mechanism of graphite nanoparticles (GN) in strength properties and microstructure characteristics of regional laterite were analysed in this study. Dry density was also taken into consideration, and the effects of graphite nanoparticle (GN) content and dry density...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/1175621 |
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| author | Yuhao Gao Jianzhong Li Yuxin Zhang Xu Sun Leiyong Yang |
| author_facet | Yuhao Gao Jianzhong Li Yuxin Zhang Xu Sun Leiyong Yang |
| author_sort | Yuhao Gao |
| collection | DOAJ |
| description | The effectiveness and improvement mechanism of graphite nanoparticles (GN) in strength properties and microstructure characteristics of regional laterite were analysed in this study. Dry density was also taken into consideration, and the effects of graphite nanoparticle (GN) content and dry density were mainly addressed. Triaxial tests, consolidation tests, and penetration tests were used to analyse the effectiveness of different dry densities and graphite nanoparticle mass ratios on the properties of laterite; microscopic methods such as scanning electron microscopy (SEM) tests were used to analyse the improvement mechanism. The results show that the increase in dry density can make the laterite more compact. The large specific surface area and nanoeffects of the graphite nanoparticles (GN) induce the attraction between soil particles after mixing, both of which make the laterite’s shear strength; compression index and impermeability have been enhanced to varying degrees. The microscopic tests showed that, as the content of graphite nanoparticles (GN) continues to increase, when it exceeds 1.0%, the attraction between soil particles increases and coarse particles are formed, which leads to the increase of the pores of the soil. In addition, the graphite nanoparticles have a certain degree of lubricity, a high amount of graphite nanoparticles enters the laterite soil layer, increasing the distance and gap between the layers, making it easy to separate the coarse particles from the coarse particles, and the strength increase is reduced. However, it is still stronger than that of the plain laterite. |
| format | Article |
| id | doaj-art-e6069205ca8e4e0eb036ff62465a1087 |
| institution | OA Journals |
| issn | 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-e6069205ca8e4e0eb036ff62465a10872025-08-20T02:21:02ZengWileyAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/1175621Mechanical and Microscopic Properties of Graphite/Laterite NanocompositesYuhao Gao0Jianzhong Li1Yuxin Zhang2Xu Sun3Leiyong Yang4Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University)Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University)Guangxi Zhuang Autonomous Region Geological Environment Monitoring StationKey Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University)Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University)The effectiveness and improvement mechanism of graphite nanoparticles (GN) in strength properties and microstructure characteristics of regional laterite were analysed in this study. Dry density was also taken into consideration, and the effects of graphite nanoparticle (GN) content and dry density were mainly addressed. Triaxial tests, consolidation tests, and penetration tests were used to analyse the effectiveness of different dry densities and graphite nanoparticle mass ratios on the properties of laterite; microscopic methods such as scanning electron microscopy (SEM) tests were used to analyse the improvement mechanism. The results show that the increase in dry density can make the laterite more compact. The large specific surface area and nanoeffects of the graphite nanoparticles (GN) induce the attraction between soil particles after mixing, both of which make the laterite’s shear strength; compression index and impermeability have been enhanced to varying degrees. The microscopic tests showed that, as the content of graphite nanoparticles (GN) continues to increase, when it exceeds 1.0%, the attraction between soil particles increases and coarse particles are formed, which leads to the increase of the pores of the soil. In addition, the graphite nanoparticles have a certain degree of lubricity, a high amount of graphite nanoparticles enters the laterite soil layer, increasing the distance and gap between the layers, making it easy to separate the coarse particles from the coarse particles, and the strength increase is reduced. However, it is still stronger than that of the plain laterite.http://dx.doi.org/10.1155/2021/1175621 |
| spellingShingle | Yuhao Gao Jianzhong Li Yuxin Zhang Xu Sun Leiyong Yang Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites Advances in Materials Science and Engineering |
| title | Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites |
| title_full | Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites |
| title_fullStr | Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites |
| title_full_unstemmed | Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites |
| title_short | Mechanical and Microscopic Properties of Graphite/Laterite Nanocomposites |
| title_sort | mechanical and microscopic properties of graphite laterite nanocomposites |
| url | http://dx.doi.org/10.1155/2021/1175621 |
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