Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide
Abstract The improvement of non-oxide ceramic plasticity while maintaining the high-temperature strength is a great challenge through the classical strategy, which generally includes decreasing grain size to several nanometers or adding ductile binder phase. Here, we report that the plasticity of fu...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-08-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-40581-7 |
| _version_ | 1797558075345862656 |
|---|---|
| author | Haiyue Xu Wei Ji Jiawei Jiang Junliang Liu Hao Wang Fan Zhang Ruohan Yu Bingtian Tu Jinyong Zhang Ji Zou Weimin Wang Jinsong Wu Zhengyi Fu |
| author_facet | Haiyue Xu Wei Ji Jiawei Jiang Junliang Liu Hao Wang Fan Zhang Ruohan Yu Bingtian Tu Jinyong Zhang Ji Zou Weimin Wang Jinsong Wu Zhengyi Fu |
| author_sort | Haiyue Xu |
| collection | DOAJ |
| description | Abstract The improvement of non-oxide ceramic plasticity while maintaining the high-temperature strength is a great challenge through the classical strategy, which generally includes decreasing grain size to several nanometers or adding ductile binder phase. Here, we report that the plasticity of fully dense boron carbide (B4C) is greatly enhanced due to the boundary non-stoichiometry induced by high-pressure sintering technology. The effect decreases the plastic deformation temperature of B4C by 200 °C compared to that of conventionally-sintered specimens. Promoted grain boundary diffusion is found to enhance grain boundary sliding, which dominate the lower-temperature plasticity. In addition, the as-produced specimen maintains extraordinary strength before the occurrence of plasticity. The study provides an efficient strategy by boundary chemical change to facilitate the plasticity of ceramic materials. |
| first_indexed | 2024-03-10T17:25:18Z |
| format | Article |
| id | doaj.art-64244525209249f8bae4b850a5fd85ff |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:25:18Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-64244525209249f8bae4b850a5fd85ff2023-11-20T10:11:37ZengNature PortfolioNature Communications2041-17232023-08-0114111010.1038/s41467-023-40581-7Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbideHaiyue Xu0Wei Ji1Jiawei Jiang2Junliang Liu3Hao Wang4Fan Zhang5Ruohan Yu6Bingtian Tu7Jinyong Zhang8Ji Zou9Weimin Wang10Jinsong Wu11Zhengyi Fu12State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyDepartment of Materials, University of OxfordDepartment of Materials, University of OxfordState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyNanostructure Research Centre, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyAbstract The improvement of non-oxide ceramic plasticity while maintaining the high-temperature strength is a great challenge through the classical strategy, which generally includes decreasing grain size to several nanometers or adding ductile binder phase. Here, we report that the plasticity of fully dense boron carbide (B4C) is greatly enhanced due to the boundary non-stoichiometry induced by high-pressure sintering technology. The effect decreases the plastic deformation temperature of B4C by 200 °C compared to that of conventionally-sintered specimens. Promoted grain boundary diffusion is found to enhance grain boundary sliding, which dominate the lower-temperature plasticity. In addition, the as-produced specimen maintains extraordinary strength before the occurrence of plasticity. The study provides an efficient strategy by boundary chemical change to facilitate the plasticity of ceramic materials.https://doi.org/10.1038/s41467-023-40581-7 |
| spellingShingle | Haiyue Xu Wei Ji Jiawei Jiang Junliang Liu Hao Wang Fan Zhang Ruohan Yu Bingtian Tu Jinyong Zhang Ji Zou Weimin Wang Jinsong Wu Zhengyi Fu Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide Nature Communications |
| title | Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide |
| title_full | Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide |
| title_fullStr | Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide |
| title_full_unstemmed | Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide |
| title_short | Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide |
| title_sort | contribution of boundary non stoichiometry to the lower temperature plasticity in high pressure sintered boron carbide |
| url | https://doi.org/10.1038/s41467-023-40581-7 |
| work_keys_str_mv | AT haiyuexu contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT weiji contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT jiaweijiang contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT junliangliu contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT haowang contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT fanzhang contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT ruohanyu contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT bingtiantu contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT jinyongzhang contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT jizou contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT weiminwang contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT jinsongwu contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide AT zhengyifu contributionofboundarynonstoichiometrytothelowertemperatureplasticityinhighpressuresinteredboroncarbide |