Synthesis of Y<sub>2</sub>O<sub>3</sub> Nanoparticles by Modified Transient Morphology Method

Yttrium oxide nanopowder has been successfully synthesized by a modified transient morphology. In the first step, a foamy structure was produced by combustion synthesis using yttrium nitrate and glycine. This was followed by the addition of sulfate ions and calcination at 1100 °C for 4 h. The sulfated powders were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM). The XRD pattern shows Y2O3 single phase after calcination. The TEM images confirm the nanometric size of the particles in the range of 40-100nm.

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Hydrothermal Synthesis and Characterization of BiFeO3 Polyhedral Crystallites

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.174-177.508 ◽

2012 ◽

Vol 174-177 ◽

pp. 508-511

Author(s):

Lin Lin Yang ◽

Yong Gang Wang ◽

Yu Jiang Wang ◽

Xiao Feng Wang

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Transmission Electron Microscopy ◽

Synthesis And Characterization ◽

X Ray Diffraction ◽

Xrd Pattern ◽

X Ray ◽

Transmission Electron ◽

Scanning Electron

BiFeO3 polyhedrons had been successfully synthesized via a hydrothermal method. The as-prepared products were characterized by power X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The possible mechanisms for the formation of BiFeO3 polyhedrons were discussed. Though comparison experiments, it was found that the kind of precursor played a key role on the morphology control of BiFeO3 crystals.

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Synthesis and Characterizations of Nanocubes, Monodispersed Nanocrystals and Nanospheres of Au

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.353-358.2163 ◽

2007 ◽

Vol 353-358 ◽

pp. 2163-2166

Author(s):

Ming Yang ◽

Guo Qing Zhou ◽

Jiang Guo Zhao ◽

Zhan Jun Li

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Powder Diffraction ◽

Visible Absorption ◽

X Ray ◽

Transmission Electron ◽

Uv Visible ◽

Scherrer Formula ◽

Visible Absorption Spectroscopy

Nanocubes, monodispersed nanocrystals and nanospheres of Au have been prepared by a simple reaction between HAuCl4·4H2O, NaOH and NH2OH·HCl in the presence of gelatin. The role of gelatin and the affection of pH in producing the nanoparticles of Au were discussed. The products were characterized by X-ray powder diffraction, transmission electron microscopy, and UV-visible absorption spectroscopy. The sizes of the monodispersed nanocrystals of Au were estimated by Debye-Scherrer formula according to XRD spectrum.

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Crystallite Size Evaluation of ZnO Nanoparticles via Transmission Electron Microscopy and X-ray Powder Diffraction

Microscopy and Microanalysis ◽

10.1017/s1431927616008898 ◽

2016 ◽

Vol 22 (S3) ◽

pp. 1610-1611

Author(s):

Jonathan E. Cowen ◽

Ashley E. Harris ◽

Cecelia C. Pena ◽

Stephen C. Bryant ◽

Allison J. Christy ◽

...

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Crystallite Size ◽

Powder Diffraction ◽

Zno Nanoparticles ◽

X Ray ◽

Transmission Electron ◽

Size Evaluation

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Ultrasonic Synthesis of Ag2Se Nanocrystal in Perrhenate Solution

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.919-921.2109 ◽

2014 ◽

Vol 919-921 ◽

pp. 2109-2111 ◽

Cited By ~ 1

Author(s):

Wei Jun Shan ◽

Qiang Yan ◽

Du Li ◽

Da Wei Fang ◽

Shu Liang Zang

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Powder Diffraction ◽

Ambient Pressure ◽

Ion Source ◽

Metal Chalcogenide ◽

X Ray ◽

Ultrasonic Synthesis ◽

Transmission Electron ◽

Se Nanoparticles

Ag2Se nanocrystal was successfully prepared by ultrasonic synthesis in water and ethanol systems at an ambient pressure. The powder of selenium was used as the selenium ion source. The size of the nanocrystals is in the scope of 10-20nm. The products were characterized by some means including X-ray Powder Diffraction (XRD) and Transmission Electron Microscopy (TEM) which was used to study the thermostability of the product. The result of the experiments indicated that the concentration of the reactant, the pH of the solution, the react temperature and the surfactant had some important influence on the formation and the size of the Ag2Se nanoparticles. The method we reported here is proved to be a new and an easy way to prepare the nanocrystals of metal chalcogenide.

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Preparation and Property of Al87Ce3Ni8.5Mn1.5 Nanophase Amorphous Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.412.263 ◽

2011 ◽

Vol 412 ◽

pp. 263-266

Author(s):

Hong Wei Zhang ◽

Li Li Zhang ◽

Feng Rui Zhai ◽

Jia Jin Tian ◽

Can Bang Zhang

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Single Phase ◽

Volume Fraction ◽

Material Structure ◽

X Ray Diffraction ◽

Scanning Calorimetry ◽

X Ray ◽

Transmission Electron ◽

Different Temperatures

The higher mechanical strength of Al87Ce3Ni8.5Mn1.5 nanophase amorphous composites has been obtained with two methods. The first nanophase amorphous composites are directly produced by the single roller spin quenching technology. The method taken for the second nanophase amorphous composites is at first to obtain amorphous single-phase alloy, followed by annealed at different temperatures .The formative condition, the microstructure, the particle size, the volume fraction of α-Al phase and microhardness of nanophase amorphous composites etc have been investigated and compared by X-ray diffraction (XRD) and transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The microstructure of composites produced by the second method is higher than the former, the fabricated material structure of the system is more uniform and the process is easier to control.

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