Preparation and Characterization of Fe - Nature
2015年3月23日 · Here we report a two-step solvothermal method to synthesize the Fe 3 O 4 nanosheets with good magnetochromatic property without deoxygenated protection and controlling of the pH value. In the...
TEM、HRTEM、STEM——透射电子显微镜的三驾马车 - 哔哩哔哩
2020年6月29日 · 几乎任何与材料相关的领域都要用到透射电镜，而最常用的三大透射电镜是：普通透射电子显微镜（tem）、高分辨透射电子显微镜（hrtem）和扫描透射电子显微镜(stem)。
Origin of large plasticity and multiscale effects in iron-based ...
2018年4月6日 · In this study, we provide evidence for the presence of metallic nm-sized crystals homogenously dispersed within the soft regions of the Fe-based BMG using aberration-corrected HRTEM. Since Fe...
Pt nanocluster-Fe single atom pairs dual-regulate charge ... - Nature
2 天之前 · f HRTEM image of CuO@Pt NC /Fe-N-C. g Element mapping images of C, N, Fe, Cu, O, and Pt of CuO@Pt NC /Fe-N-C. Source data for Fig. 2 are provided as a Source Data file. Full size image.
Tribofilm Formation by Fe - Springer
2 天之前 · The HRTEM analysis revealed the presence of a uniform oleic acid modification layer, approximately 1 nm in thickness, coating the surface of Fe 3 O 4 NPs. As shown in Fig. 1 f, FTIR analysis of modified and unmodified Fe 3 O 4 NPs revealed the critical spectral differences.
Fe83Zr7B9Mn1非晶合金中α-Fe纳米晶化的HRTEM和结晶动力学研 …
通过高分辨透射电子显微镜(HRTEM)和差示扫描量热法(DSC)研究了Fe83Zr7B9Mn1非晶合金中α-Fe纳米晶的结晶过程和非等温结晶动力学.通过HRTEM观察和X射线衍射分析,确定结晶析出相是α-Fe,在经过903K热处理之后,合金内部晶粒尺寸长大至20nm以上.对重叠放热峰进行了分峰拟 ...
High-resolution electron microscopy of advanced materials
1997年11月1日 · X-ray energy dispersive spectrometers for chemical analysis are available on all four microscopes; parallel electron energy loss spectrometers are operational on the FE-STEM and FE-HRTEM. These systems enable evaluation of local atomic bonding, as well as chemical composition in nanometer-scale regions.
HRTEM Investigations on the Substructures of the Quenched …
2024年8月5日 · The substructures of pearlite and martensite in a water-quenched Fe-1.4C (wt %) binary alloy were investigated via optical microscopy, scanning electron microscopy and high-resolution transmission electron microscopy.
High-Resolution Transmission Electron Microscopy (HRTEM) …
2024年1月1日 · The present study characterizes Fe-rich chlorites in quartz veins of epithermal to xenothermal vein-type ore deposits without later structural modifications, based on high-resolution transmission electron microscopy (HRTEM) along with XRD examination and chemical analysis.
XRD，HRTEM，拉曼和磁性研究在真空中退火的化学制备的纳米晶掺杂Fe的氧化oxide（Gd <sub>1.90</sub> Fe …
掺铁g氧化物（Gd 1.90 Fe 0.10 O 3− δ的纳米颗粒）是通过共沉淀法制备的。为了获得所需的纳米晶相并增强氧空位，将所制备的样品在700°C的真空中退火6小时。通过X射线衍射（XRD）图的Rietveld分析确认了纯结晶相。在室温下观察到的掺杂样品的高分辨率透射电子显微镜（HRTEM）研究和拉曼光谱也排除了 ...