Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres
Ceramic particle-reinforced materials are an important part of high-performance contact materials because of the excellent performance in resistance to arc erosion. In particular, B _4 C is the ideal choice for the preparation of high-performance electrical contact materials because of its excellent...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ac9e8e |
| _version_ | 1827868661844541440 |
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| author | Xinchao Li Yi Feng Fei Wang Zhuhan Liu Zijue Zhou Miao Yu Ningyuan Jiang |
| author_facet | Xinchao Li Yi Feng Fei Wang Zhuhan Liu Zijue Zhou Miao Yu Ningyuan Jiang |
| author_sort | Xinchao Li |
| collection | DOAJ |
| description | Ceramic particle-reinforced materials are an important part of high-performance contact materials because of the excellent performance in resistance to arc erosion. In particular, B _4 C is the ideal choice for the preparation of high-performance electrical contact materials because of its excellent physicochemical properties. In this paper, Cu-B _4 C composites were prepared by hot-press sintering technology to illustrate the arc erosion behavior of Cu-B _4 C composites in different atmospheres at high voltages. The erosion morphology and composition of Cu-B _4 C composites after erosion in air, carbon dioxide and sulfur hexafluoride atmosphere at 8kV were studied. The different erosion mechanisms of Cu-B _4 C composites in air, carbon dioxide and sulfur hexafluoride atmospheres were systematically discussed. The results showed that the Cu-B _4 C composites exhibited inhomogeneous erosion in all three atmospheres, and the erosion was mainly concentrated in the region around the B _4 C particles. In air, the Cu-B _4 C composites were most severely eroded, but showed better erosion resistance in carbon dioxide and sulfur hexafluoride. The experimental atmosphere decomposed and reacted with copper on the cathode surface at high temperatures, while B _4 C maintained a good structure after erosion. |
| first_indexed | 2024-03-12T15:34:33Z |
| format | Article |
| id | doaj.art-8e10ec1028b84a20a316569080bdd8c2 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:34:33Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-8e10ec1028b84a20a316569080bdd8c22023-08-09T16:18:19ZengIOP PublishingMaterials Research Express2053-15912022-01-0191111650710.1088/2053-1591/ac9e8eErosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheresXinchao Li0https://orcid.org/0000-0001-5849-1146Yi Feng1Fei Wang2Zhuhan Liu3Zijue Zhou4Miao Yu5Ningyuan Jiang6School of Materials Science and Engineering, Hefei University of Technology , Anhui, 230009, People’s Republic of ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Anhui, 230009, People’s Republic of ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Anhui, 230009, People’s Republic of ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Anhui, 230009, People’s Republic of ChinaSchool of Chemistry and Materials Engineering, Anhui Key Laboratory of Low Temperature Co-fired Materials, Huainan Normal, People’s Republic of ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Anhui, 230009, People’s Republic of ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Anhui, 230009, People’s Republic of ChinaCeramic particle-reinforced materials are an important part of high-performance contact materials because of the excellent performance in resistance to arc erosion. In particular, B _4 C is the ideal choice for the preparation of high-performance electrical contact materials because of its excellent physicochemical properties. In this paper, Cu-B _4 C composites were prepared by hot-press sintering technology to illustrate the arc erosion behavior of Cu-B _4 C composites in different atmospheres at high voltages. The erosion morphology and composition of Cu-B _4 C composites after erosion in air, carbon dioxide and sulfur hexafluoride atmosphere at 8kV were studied. The different erosion mechanisms of Cu-B _4 C composites in air, carbon dioxide and sulfur hexafluoride atmospheres were systematically discussed. The results showed that the Cu-B _4 C composites exhibited inhomogeneous erosion in all three atmospheres, and the erosion was mainly concentrated in the region around the B _4 C particles. In air, the Cu-B _4 C composites were most severely eroded, but showed better erosion resistance in carbon dioxide and sulfur hexafluoride. The experimental atmosphere decomposed and reacted with copper on the cathode surface at high temperatures, while B _4 C maintained a good structure after erosion.https://doi.org/10.1088/2053-1591/ac9e8eCu-B4C compositeserosionatmosphere |
| spellingShingle | Xinchao Li Yi Feng Fei Wang Zhuhan Liu Zijue Zhou Miao Yu Ningyuan Jiang Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres Materials Research Express Cu-B4C composites erosion atmosphere |
| title | Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres |
| title_full | Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres |
| title_fullStr | Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres |
| title_full_unstemmed | Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres |
| title_short | Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres |
| title_sort | erosion behavior and mechanism of cu b4c composites under arc discharge in different atmospheres |
| topic | Cu-B4C composites erosion atmosphere |
| url | https://doi.org/10.1088/2053-1591/ac9e8e |
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