2018年2月6日 · We succeed in selectively synthesizing fcc and hcp AuRu solid-solution alloy NPs at the Au/Ru ratio of 1:3. The structures of the obtained NPs are investigated using synchrotron powder X-ray...

如图 3所示的 XRD 分析，在拉伸试验前后的样品中检测到 fcc 和 hcp 相。fcc 和 hcp 相的特征衍射峰的相对强度在拉伸试验后发生变化，表明在塑性变形过程中发生了从 fcc 到 hcp 的相变。

2020年3月18日 · hcp-Ru and fcc-Ru nanocrystals were used as catalysts for the hydrogenation of 4-nitrochlororbenzene to unveil the dependence of performance on crystal structure 52.

2023年5月15日 · Unconventional hcp phase design coupled with metal and non-metal dual doping realizes electron density manipulation. The generated charge-polarized surface is favorable for urea adsorption/activation and C–N bond cleavage, promoting urea decomposition.

经过22%室温压缩后，XRD结果出现了其他峰，观察发现是HCP结构且具有不同的堆垛顺序，晶格参数a=2.56 ，c=4.17 。 经EBSD结果证实 冷变形 能够引起的FCC母相向HCP相发生 马氏体相变 。

To reveal the origin of the CO oxidation activity of Ruthenium nanoparticles (Ru NPs), we structurally characterized Ru NPs through Rietveld refinement analysis of high-energy X-ray diffraction...

2016年8月10日 · Phase identification and crystalline domain size have been determined from the peak widths obtained by X-ray diffraction (XRD), by using laboratory-based X-ray instruments 6, 8, 9.

过程中没有出现亚稳定的fcc 结构(bcc-hcp) . 计算结果表明: 静水压力条件下, 相变过程中并不会产生亚稳定的fcc 结构, 这与最近的原位XRD 实验测量结果相一致. 随着压力的增加, fcc-hcp 的相变势垒逐渐增加, 压力趋向于阻止 Fe 从fcc 结构到hcp 结构的相变.

1 天前 · The primary phase in dual-phase Ti alloys is the α phase, which exhibits typical hcp structures, and dislocation slippage is closely related to α grain orientation . Zhou et al. reported that micro-texture can directly affect the damping and mechanical properties of hcp structures. Therefore, the micro-texture of the α phase may be a key ...

5 天之前 · For hexagonal close-packed (HCP) Zn metal, the (002) plane—with its lowest surface energy and highest thermodynamic stability—has been extensively studied for its ability to form a dense morphology and suppress dendrite formation. ... XRD, SEM, FTIR examinations were assisted by the University of Science and Technology Beijing. The authors ...