Boron concentration drives boron substructure and properties derivation in manganese borides
Summary: Transition metal borides are important superhard multifunctional materials, in which boron concentration predetermined crystal and properties. However, the principles for effectively controlling properties through boron concentration remain unclear. Here, we reported the evolution of crysta...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225010648 |
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| author | Shuailing Ma Yuyue Pang Kuo Bao Min Lian Shuying Wu Chunyan Zhao Chunhong Xu Qiang Tao Xingbin Zhao Pinwen Zhu Tian Cui |
| author_facet | Shuailing Ma Yuyue Pang Kuo Bao Min Lian Shuying Wu Chunyan Zhao Chunhong Xu Qiang Tao Xingbin Zhao Pinwen Zhu Tian Cui |
| author_sort | Shuailing Ma |
| collection | DOAJ |
| description | Summary: Transition metal borides are important superhard multifunctional materials, in which boron concentration predetermined crystal and properties. However, the principles for effectively controlling properties through boron concentration remain unclear. Here, we reported the evolution of crystal structure, hardness, and magnetic behavior with boron concentration. Boron atoms tend to form isolated boron, boron chains, boron nets, and three-dimensional boron frameworks as boron concentration rises. The Vickers hardness initially increases from Mn2B to Mn3B4, then drops at MnB2, and finally reaches the highest value for MnB4, which suggest higher boron concentration is not a necessary factor for higher hardness, and the motifs of boron backbone are equally crucial. Moreover, boron sub-structure act as mediators of long-range ferromagnetic interactions, as evidenced by the evolution of magnetic behavior from paramagnetic, ferromagnetic, antiferromagnetic, and then paramagnetic behavior. These findings underscore the importance of manipulating boron backbone motifs to achieve high harness and superior magnetic properties. |
| format | Article |
| id | doaj-art-1b4f82b2de7f444bb0d0df8177f5dda0 |
| institution | Matheson Library |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-1b4f82b2de7f444bb0d0df8177f5dda02025-06-25T04:52:06ZengElsevieriScience2589-00422025-07-01287112803Boron concentration drives boron substructure and properties derivation in manganese boridesShuailing Ma0Yuyue Pang1Kuo Bao2Min Lian3Shuying Wu4Chunyan Zhao5Chunhong Xu6Qiang Tao7Xingbin Zhao8Pinwen Zhu9Tian Cui10School of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, ChinaSchool of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, ChinaState Key Laboratory of Superhard Materials, Jilin University, Changchun 130015, China; Corresponding authorSchool of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, ChinaSchool of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, ChinaSchool of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, ChinaState Key Laboratory of Superhard Materials, Jilin University, Changchun 130015, ChinaState Key Laboratory of Superhard Materials, Jilin University, Changchun 130015, ChinaSchool of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, ChinaState Key Laboratory of Superhard Materials, Jilin University, Changchun 130015, ChinaSchool of Physical Science and Technology & Institute of High-Pressure Physics, Ningbo University, Ningbo 315211, China; State Key Laboratory of Superhard Materials, Jilin University, Changchun 130015, China; Corresponding authorSummary: Transition metal borides are important superhard multifunctional materials, in which boron concentration predetermined crystal and properties. However, the principles for effectively controlling properties through boron concentration remain unclear. Here, we reported the evolution of crystal structure, hardness, and magnetic behavior with boron concentration. Boron atoms tend to form isolated boron, boron chains, boron nets, and three-dimensional boron frameworks as boron concentration rises. The Vickers hardness initially increases from Mn2B to Mn3B4, then drops at MnB2, and finally reaches the highest value for MnB4, which suggest higher boron concentration is not a necessary factor for higher hardness, and the motifs of boron backbone are equally crucial. Moreover, boron sub-structure act as mediators of long-range ferromagnetic interactions, as evidenced by the evolution of magnetic behavior from paramagnetic, ferromagnetic, antiferromagnetic, and then paramagnetic behavior. These findings underscore the importance of manipulating boron backbone motifs to achieve high harness and superior magnetic properties.http://www.sciencedirect.com/science/article/pii/S2589004225010648PhysicsEngineeringMaterials science |
| spellingShingle | Shuailing Ma Yuyue Pang Kuo Bao Min Lian Shuying Wu Chunyan Zhao Chunhong Xu Qiang Tao Xingbin Zhao Pinwen Zhu Tian Cui Boron concentration drives boron substructure and properties derivation in manganese borides iScience Physics Engineering Materials science |
| title | Boron concentration drives boron substructure and properties derivation in manganese borides |
| title_full | Boron concentration drives boron substructure and properties derivation in manganese borides |
| title_fullStr | Boron concentration drives boron substructure and properties derivation in manganese borides |
| title_full_unstemmed | Boron concentration drives boron substructure and properties derivation in manganese borides |
| title_short | Boron concentration drives boron substructure and properties derivation in manganese borides |
| title_sort | boron concentration drives boron substructure and properties derivation in manganese borides |
| topic | Physics Engineering Materials science |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225010648 |
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