Nanostructured bulk novel hard material with "rounded" grains obtained by nanocrystalline "rounded" (w0.5al0.5)c powders
文献类型：期刊论文
| 作者 | Qiao, Zhuhui1,2; Wang, Haijuan1,2; Ma, Xianfeng1; Zhao, Wei1; Tang, Huaguo1,2 |
| 刊名 | Materials science and engineering a-structural materials properties microstructure and processing
 |
| 出版日期 | 2008-11-25 |
| 卷号 | 496期号:1-2页码:507-511 |
| 关键词 | Novel hard material Rounded (w0.5al0.5)c shape Mechanical properties Microstructure |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2008.07.013 |
| 通讯作者 | Ma, xianfeng(xfma@ciac.jl.cn) |
| 英文摘要 | A novel nano-scaled bulk hard material (w0.5al0.5)c-co with "rounded" grains was prepared by nanocrystalline "rounded" (w0.5al0.5)c powders with "rounded" particle shape in this study. the nano-scaled "rounded" particles do not contain sharp edges, which form local tensile stress concentrations on loading of the composite, thus leading to improved toughness and reduced sensitivity to crack. nanocrystalline (w0.5al0.5)c powders with "rounded" particle shape were used as starting materials. x-ray diffraction, scanning electron microscopy, and transmission electron microscopy were used to characterize the samples. the novel hard material has superior mechanical properties; it possesses high hardness (25.36 gpa), high bending strength (2213 mpa), and lower density (9.360 g cm(-3)) compared with the common hard material (wc-co). the formation mechanism of the "rounded" (w0.5al0.5)c particles, and the relationship of the mechanical properties and the microstructures are also discussed. (c) 2008 published by elsevier b.v. |
| WOS关键词 | WC-CO ; MECHANICAL-PROPERTIES ; HARDMETALS ; TOUGHNESS |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000260639400067 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2384698 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Ma, Xianfeng |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Rare Earth Adv Mat & Valuable Utiliza, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiao, Zhuhui,Wang, Haijuan,Ma, Xianfeng,et al. Nanostructured bulk novel hard material with "rounded" grains obtained by nanocrystalline "rounded" (w0.5al0.5)c powders[J]. Materials science and engineering a-structural materials properties microstructure and processing,2008,496(1-2):507-511. |
| APA | Qiao, Zhuhui,Wang, Haijuan,Ma, Xianfeng,Zhao, Wei,&Tang, Huaguo.(2008).Nanostructured bulk novel hard material with "rounded" grains obtained by nanocrystalline "rounded" (w0.5al0.5)c powders.Materials science and engineering a-structural materials properties microstructure and processing,496(1-2),507-511. |
| MLA | Qiao, Zhuhui,et al."Nanostructured bulk novel hard material with "rounded" grains obtained by nanocrystalline "rounded" (w0.5al0.5)c powders".Materials science and engineering a-structural materials properties microstructure and processing 496.1-2(2008):507-511. |
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来源：中国科学院大学
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