Radial X-Ray Diffraction Study of Static Strength of Tantalum to 80 GPa
文献类型：期刊论文
| 作者 | Li XD(李晓东) ; Bai LG(白利刚); Liu J(刘景); Lun, X., B. Li-Gang, L. Xiao-Dong and L. Jing; Xiong L(熊伦)
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| 刊名 | CHINESE PHYSICS LETTERS中国物理快报
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| 出版日期 | 2017 |
| 卷号 | 34期号:10页码:106101 |
| ISSN号 | 0256-307X |
| DOI | 10.1088/0256-307X/34/10/106101 |
| 文献子类 | Article |
| 英文摘要 | We study the strength and texture of tantalum (Ta) under uniaxial compression up to 80 GPa using an angle-dispersive radial x-ray diffraction technique together with the lattice strain theory in a diamond anvil cell at ambient temperature. The ratio of differential stress to shear modulus (t/G.) is found to remain constant above similar to 60 GPa, indicating that the Ta starts to experience macro yield with plastic deformation at this pressure. Combined with independent constraints on the high-pressure shear modulus, we find that the Ta sample could support a differential stress of similar to 4.67 GPa when it starts to yield with plastic deformation at similar to 60 GPa under uniaxial compression. The differential stress in Ta ranges from 0.216 GPa to 4.67 GPa with pressure increasing from 1 GPa to 60 GPa and can be expressed as l = 0.199(33) + 0.075(1) P, where P is the pressure in GPa. A maximum differential stress as high as similar to 5.37 GPa can be supported by Ta at the high pressure of similar to 80 GPa. In addition, we investigate the texture of Ta under nonhydrostatic compression to 80 GPa using the software package material analysis using diffraction. It is proven that the plastic deformation due to stress under high pressures is responsible for the development of texture. |
| 电子版国际标准刊号 | 1741-3540 |
| WOS关键词 | DIAMOND-ANVIL CELL ; EQUATION-OF-STATE ; LATTICE STRAINS ; NONHYDROSTATIC COMPRESSION ; PRESSURE DERIVATIVES ; ELASTIC-MODULI ; TUNGSTEN ; MOLYBDENUM ; ALLOYS ; GOLD |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6082757 |
| WOS记录号 | WOS:000423242200015 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284757]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li XD,Bai LG,Liu J,et al. Radial X-Ray Diffraction Study of Static Strength of Tantalum to 80 GPa[J]. CHINESE PHYSICS LETTERS中国物理快报,2017,34(10):106101. |
| APA | 李晓东,白利刚,刘景,Lun, X., B. Li-Gang, L. Xiao-Dong and L. Jing,&熊伦.(2017).Radial X-Ray Diffraction Study of Static Strength of Tantalum to 80 GPa.CHINESE PHYSICS LETTERS中国物理快报,34(10),106101. |
| MLA | 李晓东,et al."Radial X-Ray Diffraction Study of Static Strength of Tantalum to 80 GPa".CHINESE PHYSICS LETTERS中国物理快报 34.10(2017):106101. |
入库方式： OAI收割
来源：高能物理研究所
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