نتایج جستجو برای: ray diffraction analysis

تعداد نتایج: 3082535  

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
m. kargar m. ghashang m.r. mohammad shafiee

in this study, a feasible green method for the synthesis of copper oxide nanocrystalline is described by using sour cherry juice which has a significant effect on crystalline size, and morphology. the benefits of the green method, not only nanometer scale are formed but also low-cost method are obtained in a normal atmosphere which it has been used (ch3coo)2cu.h2o individually as cu sources. al...

2011
Sanjay Swarup

To evaluate the efficiency of modified epoxy resins using bisphenol-A, hydantoin & cyanuric acid & to investigate the structural change due to the presence of Nitrogen atoms in polymeric chain for improved insulating properties, weatherability etc. The samples of epoxy resin bisphenol-A, hydantoin and Cyanuric acid based was taken for X-ray diffraction analysis. The diffraction patterns were Fo...

2017
Rui Qiao Mei-An Zhu

A new complex, [Cu4(HL)4(H2O)14] (1, H3L·HCl = 5-((4-carboxypiperidin-1-yl)methyl) isophthalic acid hydrochloride), has been prepared and characterized by single-crystal X-ray diffraction, elemental analysis, IR spectroscopy and powder X-ray diffraction (PXRD). The result of the X-ray diffraction analysis reveals that the complex crystallizes in monoclinic, space group C2/c and three unique Cu(...

Journal: :Acta crystallographica Section B, Structural science, crystal engineering and materials 2015
M Rajasekar K Muthu A Aditya Prasad R Agilandeshwari S P Meenakshisundaram

Single crystals of molybdenum-incorporated tris(thiourea)zinc(II) sulfate (MoZTS) are grown by the slow evaporation solution growth technique. Crystal composition as determined by single-crystal X-ray diffraction analysis reveals that it belongs to the orthorhombic system with space group Pca21 and cell parameters a = 11.153 (2), b = 7.7691 (14), c = 15.408 (3) Å, V = 1335.14 (4) Å(3) and Z = 4...

Journal: :international journal of nanoscience and nanotechnology 2012
a. ghasemi a. m. davarpanah m. ghadiri

oxide nanoparticles of fe-co-ni were prepared in six different compositions by co-precipitation method. the as-synthesized nanoparticles were characterized by x-ray diffraction (xrd), field emission scanning electron microscope (fesem), fourier transform infrared (ft-ir) and vibrating sample magnetometer  (vsm). it was found that the nanoparticles had mean crystalline size of 30-55 nm and spher...

Journal: :international journal of automotive engineering 0
honarvar gheysari babakhani haerian

shot peening applies a residual compressive stress field (rcsf) on the surface of parts. it also shifts “crack nucleation sites” to sub-surface locations. a nondestructive method of measuring the stresses, sin2ψ was utilized here and the stress values introduced to ansys software. for this purpose, uniform stress in all directions was applied on the con rod. loading on the rod in ansys had thre...

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...

2015
Thomas D. Murray Artem Y. Lyubimov Craig M. Ogata Huy Vo Monarin Uervirojnangkoorn Axel T. Brunger James M. Berger

Microcrystals present a significant impediment to the determination of macromolecular structures by X-ray diffraction methods. Although microfocus synchrotron beamlines and X-ray free-electron lasers (XFELs) can enable the collection of interpretable diffraction data from microcrystals, there is a need for efficient methods of harvesting small volumes (<2 µl) of microcrystals grown under common...

2015
Ji Hun Park Yeong Ju Lee Jong-Seong Bae Bum-Su Kim Yong Chan Cho Chikako Moriyoshi Yoshihiro Kuroiwa Seunghun Lee Se-Young Jeong

Oxygen vacancy (VO) strongly affects the properties of oxides. In this study, we used X-ray diffraction (XRD) to study changes in the VO concentration as a function of the Co-doping level of ZnO. Rietveld refinement yielded a different result from that determined via X-ray photoelectron spectroscopy (XPS), but additional maximum entropy method (MEM) analysis led it to compensate for the differe...

Journal: :international journal of nano dimension 0
a. a. mehrdad sharif department of analytical chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran. s. abedini khorrami department of analytical chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran. n. assi department of analytical chemistry, faculty of chemistry, north tehran branch, islamic azad university, tehran, iran.

zro2 nanopowder was prepared by the sol-gel auto-combustion method. the product was characterized by x-ray diffraction (xrd), energy dispersive analysis of x-ray (edx) and scanning electron microscopy (sem). the average crystalline size of zro2 was obtained 62 nm. also, photocatalytic removal of nitrophenol from aqueous solution by using nanoscale zro2 under uv light irradiation was studied. th...

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