Synthesis and Characterization of Zirconium Nitride Nanopowders …
2019年12月16日 · Zirconium nitride nanopowders were synthesized via a simple direct carbothermic nitridation process of internal gel derived zirconia in the presence of nano-sized carbon...
Formation of a zirconium oxide crystal nucleus in the initial ...
2024年4月19日 · Several studies on pristine aluminosilicate glasses and glass-ceramics with ZrO 2 have been performed using a combination of X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), and...
X-ray diffraction (XRD) pattern of ZrO2 nanostructures.
X-ray diffraction revealed that the S-ZrO2 and Pt-Pd alloy coexist in the Pt-Pd/S-ZrO2-GNP nanocomposites without affecting the crystalline lattice of Pt and the graphitic structure of the GNPs.
A stable rhombohedral phase in ferroelectric Hf (Zr) - Science
2023年8月3日 · We report a ferroelectric r-phase in a Hf(Zr) 1+ x O 2 material and demonstrate a highly CMOS-compatible way for experimentally constructing the r-phase in HfO 2 materials by increasing the atomic ratio of Hf to O. We used x-ray diffraction (XRD) and scanning transmission electron microscopy (STEM) experiments to confirm the existence of the r ...
X-ray diffraction patterns of ZrO2 (A), and Raman spectra of …
The results of characterizations from X-ray diffraction (XRD) and Raman suggest m-ZrO2 and t-ZrO2 are synthesized by the solvothermal metho... ... XRD patterns of ZrO 2 are shown in Figure 1...
Zirconium phase transformations observed by “in-situ” XRD …
2012年1月27日 · We studied phase transformations of pure Zr at high temperatures by “in situ” XRD. Four experimental samples were exposed in evacuated high temperature chamber. The transformation temperature is strongly influenced by free nitrogen and oxygen. The high temperature beta phase of Zr could be observed even at 1200 °C. The theoretical value of ...
Effect of Zr on microstructure and mechanical ... - ScienceDirect
2025年4月3日 · Subsequently, X-ray diffraction (XRD) analysis was conducted to characterize and validate the phase composition and microstructure of the alloy. Fig. 2 displays the XRD patterns of the as-cast Al 0.5 Mo 0.5 NbTi 1.25 V 0.5 Zr x (x=0, 0.1, 0.4, 0.7, 1.0, 1.3) refractory high entropy alloys. The spectrum indicates that without the Zr element, the ...
不同晶型结构纳米ZrO2的稳定化制备*
采用共沉淀法制备了室温稳定存在的不同晶型纳米ZrO 2 粉体, 用X射线衍射(XRD)、激光拉曼散射(Raman)、N 2 物理吸附、透射电镜(TEM)和动态光散射技术(DLS)等手段对其晶型结构、晶粒尺寸、比表面积和粒度分布进行了表征, 研究了煅烧温度和改性剂掺杂量对晶型结构的 ...
金属有机骨架材料MOF-808(Zr)的制备与表征 - 道客巴巴
并通过XRD、N2吸脱附、FT-IR和SEM等表征技术进行了系统地表征。表征结果：证明该方法能成功地合成出MOF．808(Zr)。[关键词】金属有机骨架材料；MOF-808(Zr)；微波辐射晶化法[中图分类号10643 [文献标识码]A [文章编号]1007·1865(2016)11-0060—02TheSynthesized and Charact...
(IUCr) Local orthorhombic phase in zirconium oxide nanocrystals ...
The misfit for the first Zr—Zr peak is more pronounced, the crystallite size reduced by about 2 Å, and the U iso values of zirconium and oxygen atoms increased (Tables S7–S8). The higher U iso values indicate more disorder. Given that there is only a slight reduction in crystallite size and the XRD patterns appear similar (as shown in Fig ...