نتایج جستجو برای: x ray diffraction analysis

تعداد نتایج: 3375249  

Journal: :علوم و تکنولوژی پلیمر 0
سعید داداشی سید محمد موسوی زهرا امام جمعه عبدالرسول ارومیه ای

physical, mechanical and structural properties of poly(lactic acid) (pla)-basedfilms containing different amounts of nanoclay and cellulose prepared bysolvent casting method were examined. physical properties including thickness,transparency and color did not change significantly with addition of nanoparticles to the polymer matrix. x-ray diffraction (xrd) patterns showed that pure pla has a se...

Journal: :Analytical chemistry 1972
C E Pfluger

where the peak shapes were described by a pseudo-Voigt function and the background was modeled with an 6-term polynomial. Additionally, the PXRD patterns obtained at room temperature and 100 K were analyzed by Le Bail refinement using the GSAS and EXPGUI software, 2,3 where the peak shapes were described by a pseudo-Voigt function (CW profile function 3) and the background was modeled with an 4...

Journal: :journal of chemical health risks 0
hashem akhlaghi department of chemistry, sabzevar branch, islamic azad university, sabzevar, iran sedighe sadat akhlaghi assistant professor, department of nephrology, shahid beheshti medical university, tehran, iran

an aqueous extract of pimpinella anisum was used for green synthesis of silver nanoparticles by bio reduction of an aqueous solution of silver nitrate. silver nanoparticles were characterized by uv–vis spectrometry, fourier transform infrared spectroscopy (ftir), x-ray diffraction (xrd) analysis, scanning electron microscopy (sem) and energy-dispersive x-ray analysis (edax). the increase in abs...

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Mg0.5-xCoxZnFe2O4 ferrite nanostructures with various amounts of Co2+ substitution (x= 0, 0.05, 0.10, 0.15) were prepared using a simple and inexpensive sol-gel method sol-gel route. Structural, microstructural and magnetic properties of the prepared powders were investigated by x-ray diffraction (XRD), Fourier transform infrared (FT-IR), field emission- scanning electron microscopy (FE-SEM), X...

D. Ghanbari M. Ranjbar M. Salavati-Niasari,

ZnS  nanoparticles  were  synthesized  via  a  simple  surfactant  free microwave  route.  In  this  synthesis, thioacetamide  was  used  as sulfur  source.  The effects  of different  parameters  such  as  type of zinc precursor,  time  and  power  of  irradiation  on  the  morphology and  particle  size  of  the  products  have been  investigated.  The nanostructures  were  characterized  by ...

Journal: :iranian journal of pharmaceutical research 0
martins emeje department of pharmaceutical technology and raw materials development, national institute for pharmaceutical research and development, idu, p.m.b.21 garki-abuja, nigeria. christiana isimi department of pharmaceutical technology and raw materials development, national institute for pharmaceutical research and development, idu, p.m.b.21 garki-abuja, nigeria. stephen byrn department of medicinal chemistry and physical pharmacy, purdue university, indiana, usa. joseph fortunak department of chemistry, howard university, usa. olobayo kunle department of pharmaceutical technology and raw materials development, national institute for pharmaceutical research and development, idu, p.m.b.21 garki-abuja, nigeria. sabinus ofoefule department of pharmaceutical technology and industrial pharmacy university of nigeria, nsukka, enugu state, nigeria.

this paper is the first multi-scale characterization of the fluidize-dried gum extracted from the fresh fruits of the plant abelmoschus esculentus. it describes the physical, thermal, sorptional and functional properties of this natural gum. elemental analysis, scanning electron microscopy (sem), particle size analysis, x-ray powder diffraction (xprd), thermo-gravimetric analysis (tga), differe...

درودیان, مسعود, طیبی فرد, سید علی , یزدانی راد, رحیم, احمدی, کامران,

X-ray powder diffraction data for Mo2.85Al1.91Si4.81 are presented here. The new Mo2.85Al1.91Si4.81 compound was successfully prepared, using the self-propagating high-temperature synthesis (SHS) technique. The starting atomic mixture of reactant powders was Mo + 2(1 - x)Si + 2xAl with 0.2 ≤ x ≤ 0.5. The final powder compound obtained by the SHS technique was determined to be in x = 0.2; Mo(Si,...

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