نتایج جستجو برای: الگوهای xrd

تعداد نتایج: 39744  

2011
H. P. S. Abdul Khalil H. M. Fizree M. Jawaid Omar S. Alattas

Oil palm ash (OPA), a bio-agricultural waste from oil palm mills, was subjected to high-energy ball milling for 30 h and was converted into a nano-structured material. The nano-structured OPA was characterized for its particle size and crystallinity index by using Transmission Electron Microscopy (TEM) and X-ray Diffraction (XRD) analysis. The crystallite size obtained from TEM and XRD was foun...

ژورنال: :پژوهش فیزیک ایران 0
سیدابراهیم موسوی قهفرخی se mousavi ghahfarokhi مرتضی زرگرشوشتری m zargar shoushtari

در این مقاله ابررسانای bpcscco)) bi1.64-xpb0.36cdxsr2ca2cu3oy که در آن x=0.0, 0.02, 0.04, 0.06 می باشد به روش واکنش حالت جامد تهیه گردید. پذیرفتاری مغناطیسی نمونه ها اندازه گیری شده و ساختار آنها توسط xrd، sem و edx مورد مطالعه قرار گرفته است. اگرچه وجود سرب برای تشکیل فاز bi-2223 ضروری بوده، اما حضور کادمیوم به ایجاد درصد بالای فاز مذکور و پایداری آن کمک می کند. نتایج حاصل از الگوهای پراش و پذ...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2011
E-S Jeong Junghwan Park J-G Park D S Adipranoto T Kamiyama S-W Han

This study examined the local structural properties of CuI at low temperatures of 10-300 K by x-ray diffraction (XRD) and extended x-ray absorption fine structure (EXAFS) measurements at the Cu K edge. The XRD data were refined using two models, split (distorted zinc-blende structure) and non-split (zinc-blende structure), using a conventional Rietveld refinement combined with a maximum entropy...

2017
Jean-Marc Costantini Andrée Kahn-Harari Francois Beuneu François Couvreur Jean-Marc COSTANTINI Andrée KAHN-HARARI

Sintered samples of monoclinic zirconia (α-ZrO2) have been irradiated at room temperature with 6.0-GeV Pb ions in the electronic slowing down regime. X-ray diffraction (XRD) and micro-Raman spectroscopy measurements showed unambiguously that a transition to the ‘metastable’ tetragonal phase (β-ZrO2) occurred at a fluence of 6.5x10 cm for a large electronic stopping power value (≈ 32.5 MeV μm). ...

2006
F. Guirado S. Galí

The quantitative Rietveld analyses of twenty samples of CAC from four different manufacturers over the world, one synthetic mixture and a NIST standard were performed using synchrotron radiation. As compared with conventional XRD, synchrotron powder diffraction permitted to find new minor phases, improve the characterization of solid solutions of iron rich CAC phases and reduce preferential ori...

2012
Neha Aggarwal Vijay Kumar Anand Kiran Walia C. Sood

Thin film of zinc oxide was prepared by spin coating on pyrex glass using zinc acetate dehydrate, 2methoxyethanol and monoethanolamine (MEA) as a precursor, solvent and stabilizer respectively. Also, Aluminium-doped thin film of ZnO was prepared by using AlCl3. Deposited thin films were investigated for structural and optical properties using X-ray diffraction (XRD) and UV–VIS-NIR spectrophotom...

2016
Hong-Peng Chen Wen-Jia Pan Nan Tang Yuan Zhang Mei-Ling Yu Xing-Da Wu

Two non-destructive instrumental methods, infrared spectroscopy (IR) and X-ray diffraction (XRD), were studied for quality evaluation of Lobelia chinensis Lour. (L. chinensis). We obtained the IR spectra and XRD patterns of L. chinensis collected from different sources. The similarity of samples was analyzed by calculating the cosine coefficient. The cosine values were in the range of 0.83-0.90...

2015
Suresh Sagadevan A. Veeralakshmi

Cadmium oxide (CdO) nanoparticles have been prepared by chemical coprecipitation method. The synthesized nanoparticles were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV analysis, and dielectric studies. The crystalline nature and particle size of the CdO nanoparticles were characterized by Powder X-ray diffract...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده روانشناسی و علوم تربیتی 1392

هدف پژوهش حاضر ارزیابی و پایش سلامت روان کارکنان یک سازمان صنعتی بود. بدین منظور 195 نفر (117 مرد، 78 زن) به صورت تصادفی ساده از کارکنان به عنوان نمونه انتخاب شدند. از شرکت کنندگان خواسته شد تا پرسشنامه شخصیتی چند وجهی مینه سوتا (mmpi-2، فرم کوتاه) و پرسشنامه رفتارها و الگوهای تجربی مرتبط با کار را تکمیل کنند. نتایج تحلیل مانوا نشان داد تعهد حرفه ای، مقاومت در برابر استرس و سلامت ذهنی افراددارا...

2008
Gilles Berhault A. Mehta F. Manciu R. R. Chianelli P. Afanasiev

Gilles Berhault, A. Mehta, F. Manciu, R.R. Chianelli, P. Afanasiev 1 Institut de Recherches en Catalyse et Environnement de Lyon, IRCELYON, UMR 5256 CNRS – Université Lyon I, Villeurbanne, F-69626 (France) 2 Stanford Synchrotron Radiation Laboratory, Stanford University, Menlo Park, CA 94025 3 Materials Research Technology Institute, University of Texas at El Paso, El Paso, TX 79968 *Gilles.Ber...

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