Powder Characterization Articles & Analysis
30 articles found
Abstract We present preliminary results of a project aimed at investigating ultrasonic techniques to measure the bulk density, pore size, and spatial variation of porosity in powder metal specimens. Specific techniques considered are ultrasonic wavespeed, attenuation and wave dispersion measurements, and the identification of spectral features in the amplitude spectra. Also discussed is the ...
If the sintering of these ceramics was extensively investigated for powder metallurgy methods, the recent emergence of new ways of preparation for actinides dioxides, mainly based on the precipitation of low-temperature precursors, requires caring about the role of chemistry during sintering and its influence over the final microstructure of the pellets. In this study, the ...
The BBQ charcoal machine mainly used for pressing powder materials. It is characterized by high molding pressure, the number of revolutions of the main engine is adjustable, and it equipped with a screw feeding device. ...
The various powder parameters that can be investigated with 3P measurement techniques can be classified as follows. 1. The particles as elements of the powder head If investigations of particles without consideration of interparticular spaces are required, then the following methods are suitable: Characterization regarding particle size ...
The macroscopic, physical properties of a powder pile are the basic characteristics of powder materials. Knowledge of these properties is therefore a crucial factor in powder production, processing and packaging, as well as in the transport, storage and application of these materials. Alongside the large number of measuring instruments for ...
At present, many industrial and technical departments require the use of the size of micron diamond powder from 0 to 4um. According to the manufacturer's standard, the micron diamond powder has finer particle size and narrower particle size range. ...
Powder characterization The macroscopic, physical properties of a powder pile are the basic characteristics of powder materials. Knowledge of these properties is therefore a crucial factor in powder production, processing and packaging, as well as in the transport, storage and application of these materials. ...
The prepared photocatalysts were characterized using the powder X-ray diffraction, high resolution transmission electron microscopy, scanning electron microscopy, UV–visible diffuse reflectance spectra, and N2 adsorption–desorption (Brunauer–Emmett–Teller) techniques respectively. ...
The as-prepared Ag3PO4/AgBr microspheres were characterized by means of powder X-ray diffraction (XRD), scanning electron microscope (SEM) and UV-visible diffuse reflectance spectroscopy (UV-vis DRS). ...
The ZnWO4/Ag3PO4 nanocomposites synthesized by simple precipitation processes were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and UV-vis diffuse reflectance spectra. ...
The application of nano-TiO2 as adsorbent combined with ultrasound for the degradation of N-acetyl-para-aminophenol (AAP) from aqueous solution was investigated. The nano-TiO2 was characterized by means of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and ...
Cross-linked chitosan(C)/marble powder (M) composites with different weight ratio percentage (C100M0, C70M30, C50M50, and C30M70) were prepared from marble powder and chitosan and cross-linked using glutaraldehyde. The morphology and the surface area of the chitosan/marble powder composites were also characterized with a ...
This study focuses on the effectiveness of zeolite (10% CF-Z [0.5]) hydrothermally synthesized from waste quartz sand and calcium fluoride (CF) for ammonium ion and heavy metal removal. Zeolite was characterized through powder X-ray diffraction, Fourier-transform infrared spectroscopy, micromeritics N2 adsorption/desorption analysis, and field emission ...
In the present study, three compositions of W-doped titania nano-photocatalyst are synthesized via the sol–gel method. The powders obtained were characterized by X-ray diffraction, Raman spectroscopy and UV–visible diffuse reflectance spectroscopy. ...
These photocatalysts were synthesized using titanium tetrachloride and tetraethyl orthosilicate as titanium and silicon sources, respectively, and characterized by X-ray powder diffraction (XRD) and scanning electron microscope methods. ...
The prepared nanomaterial was characterized using powder X-ray diffraction, scanning electron microscopy (SEM), and ultraviolet (UV)-visible spectroscopy. ...
TiO2 anatase powder was prepared by means of the sol–gel method with titanium(IV) butoxide as precursor. The formation of a tetragonal crystal structure of TiO2 anatase at 500 °C was confirmed by X-ray powder diffraction. The characterization of the samples synthesized was complemented by scanning electron microscopy, diffuse ...
Slotwinski says that for F3122 and a similar standard (F3049, Guide for Characterizing Properties of Metal Powders Used for Additive Manufacturing Processes), research reports from the National Institute of Standards and Technology provided a great deal of information. ...
A new magnetic iron oxide nanopowder (MNM) was prepared, characterized and tested as adsorbent for the removal of phenol and p-chlorophenol (PCP) from aqueous solution. The iron oxide was obtained by a new combustion method which allows the direct obtaining of magnetic nanopowder covered with some organic residues resulting from fuel combustion. The magnetic ...
Oxidative degradation of Ethylenediaminetetracetic acid in aqueous solution using the polymorphs of gallium oxide, γ– and β–Ga2O3/H2O2 system was studied in this paper. Nanophases of γ– and β–Ga2O3 were synthesised through solution combustion method and characterised using Powder X–ray diffraction (XRD), Thermogravimetry (TG), Differential Thermal Analysis (DTA), and Raman spectra. The ...