نتایج جستجو برای: x ray diffraction pattern xrd

تعداد نتایج: 1027545  

Journal: :EURASIP J. Adv. Sig. Proc. 2007
M. Ladisa Antonio Lamura Teresa Laudadio Giovanni Nico

A filter based on the Hankel Lanczos Singular Value Decomposition (HLSVD) technique is presented and applied for the first time to X-ray diffraction (XRD) data. Synthetic and real powder XRD intensity profiles of nanocrystals are used to study the filter performances with different noise levels. Results show the robustness of the HLSVD filter and its capability to extract easily and efficiently...

2006
J. Müller D. Balzar

X-ray diffraction (XRD) and electron backscatter diffraction (EBSD) are commonly used to perform texture analysis of thin films. However, due to principle differences in data acquisition these techniques can yield disagreeing results. In this paper, we aim to highlight possible error sources with given examples for aluminum and copper thin films. INTRODUCTION Texture in materials has a large in...

Lanthanum (La) doped Ceria (CeO2) has attracted considerable interest as a candidate material for thermal barrier coating (TBC) because of its low thermal conductivity and potential capability to be operated above 1250°C. In this study, La2Ce2O7 powder was synthesized through the ball mill method. The crystal structure of La3+ su...

2009
Y L N Murthy I V Kasi Viswanath T. Kondala Rao Rajendra singh

Nano size nickel copper ferrite powders (NiCuFe2O4) have been prepared by a prepared by Co precipitation method. The resulting powders were characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM).The result showed nanosize nickel copper ferrite(35.65nm). The powders showed extensive XRD line broadening and sizes of crystals observed from the XRD line broadening was35.65 nm,...

2011
M. M. Ismail Sabah. M. Ali Z. S. Ahmed

The nanocrystalline of BaZrxTi1-xO3 (BZT) (where x= 0, 0.001 and 0.008) powders have been prepared by hydrothermal method at 150 o C for 2h using as prepared titanium tetraclouride, zirconium oxyclouride and barium hydroxide as starting materials. They were investigated by x-ray diffraction XRD, transmission electron microscopy TEM, selection area electron diffraction SAED and high resolution t...

Ali Morad Rashidi, Iida Bakhtiari Mahshad Alaei,

In comparison to the previous researches, ZrO2 nanoparticles with higher surface area (85 m2/g) have been synthesized in this research. The as-prepared ZrO2 nanoparticles by co-precipitation method were characterized with X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The surface area of the s...

2015
Mubarak Y. A. Yagoub Hendrik C. Swart Luyanda L. Noto Peber Bergman Elizabeth Coetsee

SrF2:Eu,Ce3+ nanophosphors were successfully synthesized by the hydrothermal method during down-shifting investigations for solar cell applications. The phosphors were characterized by X-ray diffraction (XRD), scanning Auger nanoprobe, time of flight-secondary ion mass spectrometry (TOF-SIMS), X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy. XRD showed that the cr...

Journal: :international journal of environmental research 2013
a.a. espinosa j. miranda

soil samples were collected from seven sites in and around the metropolitan area of mexicocity. the locations were chosen as possible sources of fugitive dusts which contribute to suspended particulate matter in the atmosphere of mexico city. x-ray fluorescence (xrf) was used to determine the concentrations of several major elements (si, k, ca, ti, mn, and fe), as well as of other trace element...

توکلی, اصغر, حقیقی پور, محمدعلی, علوی, مهدی, موثقی, کریم,

This paper describes the synthesis of barium copper silicate using agglomeration of BaD, CuD, SiOz and borax. The synthesized pigments were then investigated by using X-ray diffraction (XRD) and scanning cleeton microscopy (SEM) techniques. The alkaline oxides, earth alkaline oxides, etc. can reduce the intensity of XRD lines of the samples. In order to confirm the existence of barium co...

2015
S. M. Morrison K. V. Fendrich A. S. Yen J. Grotzinger J. A. Crisp T. F. Bristow P. C. Sarrazin J. D. Farmer D. J. Des Ma M. A. Wilson N. Spanovich R. C. Anderson

Introduction: The Mars Science Laboratory (MSL) rover Curiosity recently completed its fourth drill sampling of sediments on Mars. The Confidence Hills (CH) sample was drilled from a rock located in the Pahrump Hills region at the base of Mt. Sharp in Gale Crater. The CheMin X-ray diffractometer completed five nights of analysis on the sample, more than previously executed for a drill sample, a...

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