Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry
The structural understanding of crystallization in bulk metallic glasses (BMGs) has attracted much attention while rapid crystallization occurring under controllable conditions is less involved. In this study, a Ce68Al10Cu20Co2 (at.%) BMG was thermally devitrified by differential scanning calorimetr...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-07-01
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| Series: | Journal of Materials Research and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878541831319X |
| _version_ | 1828874225439473664 |
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| author | Bingge Zhao Bin Yang Javier Rodríguez-Viejo Mannan Wu Christoph Schick Qijie Zhai Yulai Gao |
| author_facet | Bingge Zhao Bin Yang Javier Rodríguez-Viejo Mannan Wu Christoph Schick Qijie Zhai Yulai Gao |
| author_sort | Bingge Zhao |
| collection | DOAJ |
| description | The structural understanding of crystallization in bulk metallic glasses (BMGs) has attracted much attention while rapid crystallization occurring under controllable conditions is less involved. In this study, a Ce68Al10Cu20Co2 (at.%) BMG was thermally devitrified by differential scanning calorimetry (DSC) and nanocalorimetry. At a heating rate of 10 K/min by DSC, AlCe3 and Ce are the major crystalline phases after devitrification while Al13Co4 quasicrystals and Ce are the dominant phases in the crystallization products at a heating rate of 5000 K/s by nanocalorimetry. Attributing to the covalent-like bond in Al–Co atom pairs, Al13Co4 quasicrystals precipitate in the primary crystallization and work as the precursors associating local atomic configurations in the glassy state with crystalline phases after crystallization. Attributing to the enhanced mobility of Cu atoms, compositional redistribution occurs in the as-cast sample. On nanocalorimetry heating, an unambiguous discrepancy in the nucleation and growth of the nano-sized Al13Co4 quasicrystals is thus triggered, contributing to an obvious difference in the crystal size. This research unveils the distinct crystallization behaviors of Ce-based BMG on rapid heating. The formation of quasicrystals demonstrates the multi-stage crystallization on rapid heating and bridges the structural gap between local atomic configurations of metallic glasses and crystalline phases. Keywords: Nanocalorimetry, Nucleation, Crystal growth, Metallic glass, Quasicrystal |
| first_indexed | 2024-12-13T07:34:09Z |
| format | Article |
| id | doaj.art-a190cdeef2c44ae7b61ceb6567691500 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-13T07:34:09Z |
| publishDate | 2019-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-a190cdeef2c44ae7b61ceb65676915002022-12-21T23:55:08ZengElsevierJournal of Materials Research and Technology2238-78542019-07-018436033611Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetryBingge Zhao0Bin Yang1Javier Rodríguez-Viejo2Mannan Wu3Christoph Schick4Qijie Zhai5Yulai Gao6Center for Advanced Solidification Technology (CAST), School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, 200444 Shanghai, PR China; Laboratory for Microstructures, Institute of Materials, Shanghai University, 99 Shangda Road, 200444 Shanghai, PR ChinaInstitute of Physics and Competence Centre CALOR, University of Rostock, Albert-Einstein-Street 23-24, Rostock 18051, GermanyPhysics Department, Universitat Autònoma de Barcelona, Bellaterra 08193, SpainCenter for Advanced Solidification Technology (CAST), School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, 200444 Shanghai, PR ChinaInstitute of Physics and Competence Centre CALOR, University of Rostock, Albert-Einstein-Street 23-24, Rostock 18051, Germany; Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russian FederationCenter for Advanced Solidification Technology (CAST), School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, 200444 Shanghai, PR ChinaCenter for Advanced Solidification Technology (CAST), School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, 200444 Shanghai, PR China; Laboratory for Microstructures, Institute of Materials, Shanghai University, 99 Shangda Road, 200444 Shanghai, PR China; Corresponding author.The structural understanding of crystallization in bulk metallic glasses (BMGs) has attracted much attention while rapid crystallization occurring under controllable conditions is less involved. In this study, a Ce68Al10Cu20Co2 (at.%) BMG was thermally devitrified by differential scanning calorimetry (DSC) and nanocalorimetry. At a heating rate of 10 K/min by DSC, AlCe3 and Ce are the major crystalline phases after devitrification while Al13Co4 quasicrystals and Ce are the dominant phases in the crystallization products at a heating rate of 5000 K/s by nanocalorimetry. Attributing to the covalent-like bond in Al–Co atom pairs, Al13Co4 quasicrystals precipitate in the primary crystallization and work as the precursors associating local atomic configurations in the glassy state with crystalline phases after crystallization. Attributing to the enhanced mobility of Cu atoms, compositional redistribution occurs in the as-cast sample. On nanocalorimetry heating, an unambiguous discrepancy in the nucleation and growth of the nano-sized Al13Co4 quasicrystals is thus triggered, contributing to an obvious difference in the crystal size. This research unveils the distinct crystallization behaviors of Ce-based BMG on rapid heating. The formation of quasicrystals demonstrates the multi-stage crystallization on rapid heating and bridges the structural gap between local atomic configurations of metallic glasses and crystalline phases. Keywords: Nanocalorimetry, Nucleation, Crystal growth, Metallic glass, Quasicrystalhttp://www.sciencedirect.com/science/article/pii/S223878541831319X |
| spellingShingle | Bingge Zhao Bin Yang Javier Rodríguez-Viejo Mannan Wu Christoph Schick Qijie Zhai Yulai Gao Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry Journal of Materials Research and Technology |
| title | Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry |
| title_full | Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry |
| title_fullStr | Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry |
| title_full_unstemmed | Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry |
| title_short | Bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry |
| title_sort | bridging the local configurations and crystalline counterparts of bulk metallic glass by nanocalorimetry |
| url | http://www.sciencedirect.com/science/article/pii/S223878541831319X |
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