Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range
Abstract In this paper, porous Cu with different porosity and pore size has been successfully prepared by the well-known lost carbamide sintering method. The effects of the space holder size on the pore structure and mechanical properties of porous Cu were studied with a wide porosity range. The res...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87570-y |
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| author | He Yanping Xiao Jian Xie Shubao Tan Ruicheng Qiu Guibao |
| author_facet | He Yanping Xiao Jian Xie Shubao Tan Ruicheng Qiu Guibao |
| author_sort | He Yanping |
| collection | DOAJ |
| description | Abstract In this paper, porous Cu with different porosity and pore size has been successfully prepared by the well-known lost carbamide sintering method. The effects of the space holder size on the pore structure and mechanical properties of porous Cu were studied with a wide porosity range. The results showed that the particle size of space holder has an effect on the porosity, pore size, elastic modulus, yield strength, densification stress & strain, energy density, plateau stress and fitting curve of porous Cu, but the law was complex when compared with the content. The correlation between the relative elastic modulus and the relative density of porous Cu was square exponential which can be well described by the standard Gibson-Ashby model. However, the correlation between the relative yield strength and the relative density of porous Cu was more suitable to describe by the power exponent instead of 3/2 which can be well described by the modified Gibson-Ashby model. The results indicated that the effect of space holder content on the pore structure and mechanical properties of porous Cu was more significant and regular than that of particle size, but the effect of space holder size cannot be ignored. The results of this study will provide reference for the design and preparation of porous Cu with different pore sizes in the future. |
| format | Article |
| id | doaj-art-35d0a633781f478e96e32e35f7ca372b |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-35d0a633781f478e96e32e35f7ca372b2025-08-20T03:07:40ZengNature PortfolioScientific Reports2045-23222025-04-0115111810.1038/s41598-025-87570-yEffects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity rangeHe Yanping0Xiao Jian1Xie Shubao2Tan Ruicheng3Qiu Guibao4School of Material Science and Engineering, Jiangxi University of Science and TechnologySchool of Material Science and Engineering, Jiangxi University of Science and TechnologySchool of Material Science and Engineering, Jiangxi University of Science and TechnologySchool of Material Science and Engineering, Jiangxi University of Science and TechnologyCollege of Materials Science and Engineering, Chongqing UniversityAbstract In this paper, porous Cu with different porosity and pore size has been successfully prepared by the well-known lost carbamide sintering method. The effects of the space holder size on the pore structure and mechanical properties of porous Cu were studied with a wide porosity range. The results showed that the particle size of space holder has an effect on the porosity, pore size, elastic modulus, yield strength, densification stress & strain, energy density, plateau stress and fitting curve of porous Cu, but the law was complex when compared with the content. The correlation between the relative elastic modulus and the relative density of porous Cu was square exponential which can be well described by the standard Gibson-Ashby model. However, the correlation between the relative yield strength and the relative density of porous Cu was more suitable to describe by the power exponent instead of 3/2 which can be well described by the modified Gibson-Ashby model. The results indicated that the effect of space holder content on the pore structure and mechanical properties of porous Cu was more significant and regular than that of particle size, but the effect of space holder size cannot be ignored. The results of this study will provide reference for the design and preparation of porous Cu with different pore sizes in the future.https://doi.org/10.1038/s41598-025-87570-yPorous metalMetal foamCopperLost carbamide sinteringPore structureCompression characteristic |
| spellingShingle | He Yanping Xiao Jian Xie Shubao Tan Ruicheng Qiu Guibao Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range Scientific Reports Porous metal Metal foam Copper Lost carbamide sintering Pore structure Compression characteristic |
| title | Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range |
| title_full | Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range |
| title_fullStr | Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range |
| title_full_unstemmed | Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range |
| title_short | Effects of the space holder size on the pore structure and mechanical properties of porous Cu with a wide porosity range |
| title_sort | effects of the space holder size on the pore structure and mechanical properties of porous cu with a wide porosity range |
| topic | Porous metal Metal foam Copper Lost carbamide sintering Pore structure Compression characteristic |
| url | https://doi.org/10.1038/s41598-025-87570-y |
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