Self-organized intermittent plastic flow in bulk metallic glasses
文献类型：期刊论文
| 作者 | Wang, G ; Chan, KC ; Xia, L ; Yu, P ; Shen, J ; Wang, WH |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2009 |
| 卷号 | 57期号:20页码:6146 |
| 关键词 | POTENTIAL-ENERGY LANDSCAPE VISCOPLASTIC DEFORMATION DISLOCATION AVALANCHES MECHANICAL-PROPERTIES FORMING LIQUIDS SHEAR BANDS TEMPERATURE CONFINEMENT COMPOSITES TRANSITION |
| ISSN号 | 1359-6454 |
| 通讯作者 | Chan, KC (reprint author), Hong Kong Polytech Univ, Dept Ind & Syst Engn, Adv Mfg Technol Res Ctr, Kowloon, Hong Kong, Peoples R China. |
| 中文摘要 | Triangular tessellations and Fibonacci parastichous spirals were assembled via thermal stress engineering of Ag-core/SiO2-shell microstructures, for which the geometry and topology of the primary core/shells play a pivotal role. Patterns on slightly stressed spherical surfaces are simply triangular tessellations with 12 pentamers, whereas additional pentamer-heptamer chains emerge when more vertices are available (>360) on heavily stressed surfaces, all showing an excellent agreement with numerical solutions to the Thomson's problem. Defect free triangular lattice can be produced on a pierced spherical cap prepared via the draining effect. Remarkably, Fibonacci spirals of definite chirality, 3 by 5 through 13 by 21, and in both sinister and dexter forms, emerge on the conical supports. These results provide strong confirmation of the mechanical principle for phyllotaxis that the phyllotatic patterns are the least-elastic-energy configuration in a confining receptacle, and meanwhile demonstrate an effective path for the en masse fabrication of patterned structures on curved surfaces. |
| 收录类别 | SCI |
| 资助信息 | Research Committee of Hong Kong Polytechnic University [G-YX90] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52450]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, G,Chan, KC,Xia, L,et al. Self-organized intermittent plastic flow in bulk metallic glasses[J]. ACTA MATERIALIA,2009,57(20):6146. |
| APA | Wang, G,Chan, KC,Xia, L,Yu, P,Shen, J,&Wang, WH.(2009).Self-organized intermittent plastic flow in bulk metallic glasses.ACTA MATERIALIA,57(20),6146. |
| MLA | Wang, G,et al."Self-organized intermittent plastic flow in bulk metallic glasses".ACTA MATERIALIA 57.20(2009):6146. |
入库方式： OAI收割
来源：物理研究所
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