2023年3月3日 · Transmission electron microscopy (TEM) observations indicated that these room-temperature-bonded Al2O3 thin films appeared to work well as nanoadhesives that...

2021年10月1日 · Based on a direct simulation of powder XRD patterns using the Debye scattering equation (DSE) and HRTEM study, we proposed an original model of coherent 3D nanostructure of anisotropic plate-like γ-Al2 O 3 particles with tetragonal spinel …

TEM image of Al2O3 whisker: (a) general TEM image; (b) SAED of Figure 6a; (c) high-resolution TEM. This study simulated the bulk structure and surface energy of Al2O3 based on the density...

Nanoparticles of Al2O3 for nanofluids has been successfully synthesized using self combustion method using sugar as fuel. Al (OH)3 was used as precursor. It was extracted from local bauxite. The...

2019年12月7日 · 高纯度刚玉（α-Al2O3）纳米颗粒具有高表面积以及稳定的物理及化学性质，有着广泛的应用空间。 比如，α-Al2O3纳米颗粒可直接用作汽车尾气净化催化剂的载体，无需涂层保护，无惧汽车尾气的高温、高湿度及复杂的化学组成；用作合成氨的催化剂组分，能使催化活性提高3倍；用于在较低的烧结温度下制备断裂韧性和密度较高的陶瓷。 不过，想制备高纯度α-Al2O3纳米颗粒并不容易。 最简单粗暴的方法，莫过于将大块刚玉破碎，但由于刚玉的硬度很 …

2023年5月15日 · By employing a dedicated environmental transmission electron microscope (TEM) equipped with a differential pumping system and an image corrector, we directly monitor the growth of individual γ-Al 2 O 3 nanowires at the NiO/γ-Al 2 O 3 interface. Our in-situ TEM observations demonstrate that this oxide nanowire growth process does not involve ...

2024年3月1日 · Herein, we study the structure of γ-Al 2 O 3 with scanning transmission electron microscopy (STEM) and ab-initio calculations and show that the structure can be interpreted as a domain microstructure of defective spinel interconnected via non-spinel segments that form the basis of antiphase boundaries (APBs).

The present study investigates the thermal conductivity of Al2O3 hybrid with MWCNTs (multi-walled carbon nanotubes) nanoparticles dispersed in ethylene glycol (EG) as a base fluid.

2022年1月25日 · Alumina (α-Al 2 O 3) is one of the representative structural ceramics. To understand its mechanical responses, the lattice defect behavior of alumina has been investigated by transmission electron microscopy (TEM) for many years. In this report, we review our recent research progress on TEM structural analysis of lattice defects in alumina.

2022年3月11日 · Transmission Electron Microscopy (TEM) and X-ray Diffraction (XRD) are two powerful characterization techniques that provide complementary information on the cobalt nanoparticles. TEM provides direct imaging of a very limited region of the sample in which the dispersion, particle morphology, and crystallographic phases can be distinguished.