نتایج جستجو برای: ray diffraction analysis

تعداد نتایج: 3082535  

H. Rezaie, J. Javadpour,, M. Ebrahimi-Basabi,, M. Goodarzi,

Abstract: Nano- size alumina particles have been synthesized by mechanical activation of a dry powder mixture of AlCl3 and CaO. Mechanical milling of the above raw materials with the conditions adopted in this study resulted in the formation of a mixture consisting of crystalline CaO and amorphous aluminum chlorides phases. There was no sign of chemical reaction occurring during milling stag...

2016
S. M. R. Turner G. M. Hansford

Introduction: Here we present an analysis of sulphate minerals from the Triassic coastline of the South West UK, utilising an Energy Dispersive X-Ray Diffraction (ED-XRD) instrument in a novel backreflection geometry that enables analysis of unprepared rock samples. Sulphate minerals are of particular interest in planetary science as they are a product of an aqueous altered environment. This st...

2009
Gary L. Corino Peter W. French Myungae Lee Mariam M. Ajaj Joseph Haklani Dharmica A.H. Mistry Kevin Phan Phillip G. Yuile

OBJECTIVE To assess the performance of a test for breast cancer utilizing synchrotron x-ray diffraction analysis of scalp hair from women undergoing diagnostic radiology assessment. DESIGN AND SETTING A double-blinded clinical trial of women who attended diagnostic radiology clinics in Australia. PATIENTS 1796 women referred for diagnostic radiology, with no previous history of cancer. MA...

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
h. zahedi a. mollahosseini e. noroozian

according to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of cu, ag, au, pb and se. in this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. silver was separated from anode slime by using of hno3 and hcl. x-ray fluorescence spectroscopy (xrf) was used to characterize anode sl...

2017
Xiaojuan Wang Frank R. Fronczek Jiabao Chen Jiabao Liu Daneel Ferreira Shuai Li Mark T. Hamann Derek J. McPhee

A new schiartane-type nortriterpenoid, micrandilactone H was isolated from Kadsura longipedunculata Finet et Gagnep. Its 2D (two dimension) structure was elucidated by NMR spectroscopic analysis, and it is similar to that of Kadnanolactones H and the absolute configuration was established through X-ray diffraction and ECD data analysis. This represents the first complete assignment of the absol...

2017
Rohit Prasanna

X-ray diffraction is a commonly used experimental technique for identifying the structure of crystalline materials[3]. A crystalline material has its atoms arranged in periodic lattices with long-range symmetry. As a result, it scatters a beam of X-rays in well-defined patterns. Analysis of an X-ray diffraction pattern produced by a material yields extensive information about the structure of t...

Journal: :international journal of nano dimension 0
a. dinesh karthik pg department of chemistry,k. m. g. college of arts and science, gudiyattam, 635 803 vellore.dt.tamil nadu, india. k. geetha pg and research department of chemistry, muthurangam govt. arts college (autonomous), vellore - 632 002,tamil nadu, india.

a simple method has been employed to synthesize copper and copper oxide nanoparticles from copper (ii) succinate precursor by thermal decomposition method using oleylamine as a capping agent. the particles synthesized with oleylamine and triphenylphosphine were well dispersed nanoparticles obtained from x-ray diffraction (xrd). the synthesized copper nanoparticles were characterized by uv-visib...

In this paper, we report the synthesis of tin oxide (SnO2) nanoparticles by co-precipitation technique. The structural, surface morphology, thermal and optical properties of the SnO2 samples were analysed using X-ray diffraction (XRD), High-resolution transmission electron microscopy (HRTEM), Fourier transformed infrared (FTIR) spectrum, thermo gravimetric analysis (TGA/DT...

Journal: :مهندسی متالورژی و مواد 0
نگار عباسی اول خدیجه فرجام حسین آقاجانی

in this study, the effect of grain size on nitrogen diffusion into ck45 has been investigated. in order to obtain different grain sizes, samples were annealed and normalized at various temperatures and durations.the grain size was determined with clemex vision software. then, the specimens were exposed to dc plasma nitriding treatment and again analyzed by optical microscope ,scanning electron ...

Journal: :journal of nanostructures 2016
s. m. hosseinpour-mashkani a. sobhani-nasab m. maddahfar

this research reports a facile ultrasonic approach for the synthesis of iron vanadate (fevo4) nanoparticles with the aid of ammonium metavanadate (nh4vo3) and fe(no3)3.9h2o as the starting reagents without adding external surfactant, capping agent or template in an aqueous solution. furthermore, to examine the solar cell application of as-synthesized iron vanadate (fevo4) nanoparticles, fto/tio...

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