Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel
The properties of particles in nano-scale has been found significantly different, whereas the reaction mechanisms and adsorption behaviors of nanoparticles in liquid steel under high temperature are still not fully clarified due to the experimental difficulties. In this study, in-situ experiments an...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422013977 |
| _version_ | 1811180707114909696 |
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| author | Chao Gu Ziyu Lyu Xin Liu Yanping Bao Hong Li Wei Kang Jianhua Chu Junhe Lian |
| author_facet | Chao Gu Ziyu Lyu Xin Liu Yanping Bao Hong Li Wei Kang Jianhua Chu Junhe Lian |
| author_sort | Chao Gu |
| collection | DOAJ |
| description | The properties of particles in nano-scale has been found significantly different, whereas the reaction mechanisms and adsorption behaviors of nanoparticles in liquid steel under high temperature are still not fully clarified due to the experimental difficulties. In this study, in-situ experiments and density functional theory calculations were adopted to reveal the differences of adsorption phenomenon between Al2O3 inclusions and CaO particles of different sizes. It is concluded that the adsorption speed and bond strength between CaO and Al2O3 are both larger for CaO with smaller sizes. The surface of Al2O3 will become rough due to chemical adsorption of CaO, encouraging more Ca atoms to participate in the adsorption and thus accelerating the adsorption process. This work presents a new insight into the reactions concerning inclusion modification in liquid steel in nano-scale and also help create opportunities for the application of nano-materials in high-efficient smelting. |
| first_indexed | 2024-04-11T09:06:41Z |
| format | Article |
| id | doaj.art-fc6521036b7e4154a8c10a26f95948e6 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T09:06:41Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-fc6521036b7e4154a8c10a26f95948e62022-12-22T04:32:36ZengElsevierJournal of Materials Research and Technology2238-78542022-09-012039623968Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steelChao Gu0Ziyu Lyu1Xin Liu2Yanping Bao3Hong Li4Wei Kang5Jianhua Chu6Junhe Lian7State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.Technology Center, Angang Steel Company Limited, Anshan, 114003, ChinaTechnology Center, Angang Steel Company Limited, Anshan, 114003, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Mechanical Engineering, Aalto University, Puumiehenkuja 3, Espoo, 02150, FinlandThe properties of particles in nano-scale has been found significantly different, whereas the reaction mechanisms and adsorption behaviors of nanoparticles in liquid steel under high temperature are still not fully clarified due to the experimental difficulties. In this study, in-situ experiments and density functional theory calculations were adopted to reveal the differences of adsorption phenomenon between Al2O3 inclusions and CaO particles of different sizes. It is concluded that the adsorption speed and bond strength between CaO and Al2O3 are both larger for CaO with smaller sizes. The surface of Al2O3 will become rough due to chemical adsorption of CaO, encouraging more Ca atoms to participate in the adsorption and thus accelerating the adsorption process. This work presents a new insight into the reactions concerning inclusion modification in liquid steel in nano-scale and also help create opportunities for the application of nano-materials in high-efficient smelting.http://www.sciencedirect.com/science/article/pii/S2238785422013977In-situ experimentDensity functional theoryAdsorptionNanoparticlesInclusions |
| spellingShingle | Chao Gu Ziyu Lyu Xin Liu Yanping Bao Hong Li Wei Kang Jianhua Chu Junhe Lian Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel Journal of Materials Research and Technology In-situ experiment Density functional theory Adsorption Nanoparticles Inclusions |
| title | Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel |
| title_full | Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel |
| title_fullStr | Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel |
| title_full_unstemmed | Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel |
| title_short | Experimental and density functional theory studies on size-dependent adsorption behavior of CaO nanoparticles on Al2O3 in liquid steel |
| title_sort | experimental and density functional theory studies on size dependent adsorption behavior of cao nanoparticles on al2o3 in liquid steel |
| topic | In-situ experiment Density functional theory Adsorption Nanoparticles Inclusions |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422013977 |
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