in this paper, tin dioxide nanoparticles were synthesized by a fast and simple co-precipitation method. for sno2 preparation, we used ammonia as precipitation agent and bis (acetylacetone) ethylene diamineas as capping agent. by changing in sncl4, acacen mole-ratio different morphologies were obtained. this semiconductor nanostructure has photo-catalyst activities and can degrade organic dyes a...

A method of measuring biaxial stress-strain curves for sheet metal samples subjected to large plastic strains is described for one example aluminum alloy (AA 5754-O). The method uses a portable X-ray diffraction (XRD) system to measure in situ stresses during tensile deformations. Calibration of X-ray elastic constants and the effects of texture and intergranular stresses are discussed. Uniaxia...

A correlation between the presence of breast cancer and a change in the synchrotron-generated X-ray diffraction (XRD) pattern of hair has been reported in several publications by different groups, and on average XRD-based assays detect around 75% of breast cancer patients in blinded studies. To date, the molecular mechanisms leading to this alteration are largely unknown. We have determined tha...

Structures of carbon supported Pt-Ru catalyst in a polymer-electrolyte-fuel-cell (PEFC) were analyzed by X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAFS). XRD analysis identified a face-centered-cubic (fcc) alloy structure for Pt-Ru. XAFS analysis revealed that Pt and Ru atoms were, however, not randomly distributed in the Pt-Ru fcc lattice. A Pt atom was more likely surrounded ...

Within the past decade Electron Backscatter Diffraction (EBSD) has experienced wide acceptance in metallurgical and geological labs. It is a Kikuchi diffraction device based on the SEM that enables individual grain orientations, local texture, point-to-point orientation correlations, and phases to be determined routinely at a sub-grain size level on the surfaces of bulk polycrystals while explo...

Molecular beam epitaxy grown InAs/GaSb superlattices, containing InSb-like interfacial layers, were analyzed by a combination of x-ray diffraction XRD and structural refinement. The superlattice refinement from x rays SUPREX method determines with high accuracy the average thicknesses and d spacings of the individual InAs and GaSb layers in addition to standard structural parameters usually obt...

Needle-like ZnO nanostructures were synthesized by an organic-free hydrothermal process. Thehydrothermal synthesis was performed at very low pressure (~20 kPa) with duration of process only 10min. The products were characterized by X-ray powder diffraction (XRD)and transmission electronmicroscopy (TEM).The XRD pattern indicated that the needle –like ZnO nanostructures were hexag...

calcium fluoride nanoparticles with special amount of cerium ion (%1) were synthesized by coprecipitation. fourier transforms infrared spectroscopy (ftir), x-ray diffraction (xrd), absorption and photoluminescence (pl) from caf2ce nanoparticles has been investigated. ftir spectra reveal that there are some amounts of oh, no3 and other organic functional groups on the particle surfaces before th...

Single crystals of the metal-organic framework Ulm-4l(arge) (MFU-4l) can be grown site selectively on microtextured plasma polymer coatings comprising a pattern of alternating hydrophilic and hydrophobic domains. The crystals grow preferentially on the hydrophilic parts of the film surface. X-ray diffraction (XRD) shows that the cubic crystals have a high propensity to adhere with 〈1 0 0〉 orien...

We report the synthesis of amorphous carbon nanotubes/silver (αCNTs/Ag) nanohybrids via simple chemical route without additional reactant and surfactant at low temperature. Field emission scanning microscope (FESEM) and transmission electron microscope (TEM) confirmed formation of CNTs. X-ray diffraction (XRD) pattern confirmed the amorphous phase of carbon and the formation of Ag nanoparticles...