Development of Y2O3 Dispersion-Strengthened Copper Alloy by Sol-Gel Method
文献类型：期刊论文
| 作者 | Ke, Jiangang1,2; Xie, Zhuoming2 ; Liu, Rui2; Jing, Ke1,2; Cheng, Xiang1,2; Wang, Hui1,2; Wang, Xianping2; Wu, Xuebang2; Fang, Qianfeng1,2; Liu, Changsong2
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| 刊名 | MATERIALS
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| 出版日期 | 2022-04-01 |
| 卷号 | 15 |
| 关键词 | copper sol-gel mechanical properties thermal stability thermal conductivity |
| DOI | 10.3390/ma15072416 |
| 通讯作者 | Liu, Rui(liurui@issp.ac.cn) ; Fang, Qianfeng(qffang@issp.ac.cn) |
| 英文摘要 | In this study, oxide dispersion-strengthened Cu alloy with a Y2O3 content of 1 wt.% was fabricated through citric acid sol-gel synthesis and spark plasma sintering (SPS). The citric acid sol-gel method provides molecular mixing for the preparation of precursor powders, which produces nanoscale and uniformly distributed Y2O3 particles in an ultrafine-grained Cu matrix. The effects of nanoscale Y2O3 particles on the microstructure, mechanical properties and thermal conductivity of the Cu-1wt.%Y2O3 alloy were investigated. The average grain size of the Cu-1wt.%Y2O3 alloy is 0.42 mu m, while the average particle size of Y2O3 is 16.4 nm. The unique microstructure provides excellent mechanical properties with a tensile strength of 572 MPa and a total elongation of 6.4%. After annealing at 800 degrees C for 1 h, the strength of the alloy does not decrease obviously, showing excellent thermal stability. The thermal conductivity of Cu-1wt.%Y2O3 alloy is about 308 Wm(-1)K(-1) at room temperature and it decreases with increasing temperature. The refined grain size, high strength and excellent thermal stability of Cu-1wt.%Y2O3 alloys can be ascribed to the pinning effects of nanoscale Y2O3 particles dispersed in the Cu matrix. The Cu-Y2O3 alloys with high strength and high thermal conductivity have potential applications in high thermal load components of fusion reactors. |
| WOS关键词 | PLASMA-FACING COMPONENTS ; HEAT SINK ; MECHANICAL-PROPERTIES ; COMPOSITES ; MICROSTRUCTURE ; FABRICATION ; SELECTION ; DIVERTOR |
| 资助项目 | National Key Research and Development Program of China[2019YFE03120001] ; National Key Research and Development Program of China[2017YFE0302400] ; National Key Research and Development Program of China[2017YFA0402800] ; National Natural Science Foundation of China[51971213] ; National Natural Science Foundation of China[52173303] ; National Natural Science Foundation of China[52171084] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000781277500001 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128727]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Liu, Rui; Fang, Qianfeng |
| 作者单位 | 1.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Mat Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ke, Jiangang,Xie, Zhuoming,Liu, Rui,et al. Development of Y2O3 Dispersion-Strengthened Copper Alloy by Sol-Gel Method[J]. MATERIALS,2022,15. |
| APA | Ke, Jiangang.,Xie, Zhuoming.,Liu, Rui.,Jing, Ke.,Cheng, Xiang.,...&Liu, Changsong.(2022).Development of Y2O3 Dispersion-Strengthened Copper Alloy by Sol-Gel Method.MATERIALS,15. |
| MLA | Ke, Jiangang,et al."Development of Y2O3 Dispersion-Strengthened Copper Alloy by Sol-Gel Method".MATERIALS 15(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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