mean crystallite size
Evaluation of Mean Crystallite Size on Magnetic Powder by Scanning Electron Microscopy and Synchrotron Diffractometry
... This paper presents the results of investigations carried out with Pr-based magnetic powders. The magnetically hard powders were produced from homogenised alloys using a high temperature hydrogen pulverization process. ...
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Chemico- thermal synthesis of nano-structured cobalt with distinct magnetic property
... The synthesis of nanostructures cobalt through a controlled chemical process followed by heat treating at various temperatures is studied. The product is characterized by ICP, XRD, FESEM, and TEM, indicating that the as- ...
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Effects of the pH of Initial Solution on Hydrothermally Synthesized TiO2 Nanoparticles
... where, D is mean crystallite size, k is shape factor which is about 0.9 for spherical particles. λ is the wave length of the X-ray, -which in our experiment was equal to 0.154178 nm- and β is the ...
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Manganese Oxide Promoted LaCoO3 Nano-Perovskite for Oxidation of a Model Exhaust Gas
... Scanning electron microscopy (SEM) and energy dispersive X-ray micro analysis (EDX) were done by a Philips XL30 instrument to investigate the particle size and morphology as well as the elemental composition of ...
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Y3+ Doped Ni0.4 Mg0.4 Cd0.2 Fe2-yO4 Spinels Nanoferrite : Structural, Morphological, and Electrical Properties
... the crystallite size with respect to the yttrium concentration, temperature and changes in the structural and electrical properties and reported that the resistance of the nanostructured yttrium doped ...
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Synthesis, Characterization and Electrical Conductivity of Nano-Crystalline Erbium Sesquioxide by the Precipitation Method and Subsequent Calcination
... lowest crystallite size, which was prepared using pH = 12.0, the study has been extended to investigate the effect of calcination temperature on its structural as well as textural features at the ...
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Investigation of Physicochemical, Spectral, and Thermal Properties of Sodium Selenate Treated with the Energy of Consciousness (The Trivedi Effect®)
... control sample. Additionally, the surface area of the treated sample was increased by 5.26% from the control sample. TGA analysis revealed that the total weight loss of the treated sample was diminished by 1.24% compared ...
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Zirconia Modification on Nanocrystalline Titania Supported Cobalt Catalysts for Methanation
... The surface areas of the catalysts with and without Zr modification are also shown in Table 1. They slightly decreased with Zr modification. It should be noted that high surface area could result in better distribution ...
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Deposition of Pyrolytic Silicon Carbide on Discs in a Fluidized Bed EUR 4946
... The influence of the deposition conditions on density, microstructure, crystallite size and chemical composition of the material was determined.. Besides temperature the deposition rate [r] ...
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1 D Paracrystalline Model to Simulate a Bragg Reflection: Computation of Crystallite Size and Lattice Strain
... leading to shifts of atoms/molecules from their ideal positions. These two together along with other extended defects lead to peak broadening. Absolute accuracy of these results is always a problem. The restrictions are ...
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Determination of Phase Fraction, Lattice Parameters and Crystallite Size in Mechanically Alloyed Fe-Ni Powders
... Elemental powders of Fe (particle size : -325 mesh ) and Ni (particle size : -100 mesh) with nominal purity of 99.9 wt% were used as starting materials. Ball milling was performed in a SPEX 8000 shaker ...
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Crystallographic Study of the TiO2 Obtained by Different Synthesis Methods
... In this work, the crystal structure of titanium dioxide was studied, and the effect of the different synthesis routes on the microstructure and morphology of the nanostructures was analyzed. Samples characterization was ...
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X-ray diffraction broadening analysis
... shows a beginning of splitting of 2D bands into 3D lines: 10 into 100, 101 and 102, and 11 into 110 and 112 (Figs. 12a, 12b). These modulations indi- cate the start of graphitizaton. The neighbouring layers, having ...
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Structural and Morphological Characteristics of Copper-Alumina Nano-Composite
... The crystallite size, lattice constant and unit cell volume of copper- alumina nano- composite were determined by X-ray diffraction (XRD) technique. Various phases of copper supported on alumina were ...
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Pulsed Laser Induced Simple Synthetic Route for Tb3Al5O12:Ce3+Colloidal Nanocrystals and Their Luminescent Properties
... number of surfactants are widely used in laser ablation process, the LDA have been reported to lead to smaller average size and narrow distribution, as well as enhanced emission intensity [20]. The fixed target ...
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Effect of Nitriding Current Density on the Surface Properties and Crystallite Size of Pulsed Plasma Nitrided AISI 316L
... and crystallite size of nitrided samples were calculated using “X” Pert High Score PlusTM” version ...the size of the crystallites and the presence of crystallographic distortions (strain), ...
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Investigating the Oral Health of Individuals with Depression: Finding from the 2015 2016 National Health and Nutrition Examination Survey (NHANES)
... Crystallite sizes calculated for the siderite and magnetite precipitates using Scherrer’s equation indicated average sizes of 14.6286 nm and 12.9393 nm respectively. Compared to SEM images crystallite sizes ...
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Thermally Induced Nano Structural and Optical Changes of nc Si:H Deposited by Hot Wire CVD
... The optical properties were determined from UV–visible transmission measurements performed on the thin film deposited on the Corning 7059 glass substrate, using the method proposed by Swanepoel [33, 34]. The thickness of ...
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Effect of Thickness on Catalytic Performance of Cu Doped TiO2 Thin Films
... techniques as one of primary materials processing methods. The fundamental properties of thin films rely on deposition parameters such as film thickness, grain size and substrate quality. The transition metal ...
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Synthesis and Characterization of Triethanolamine (TEA) Grafted Nano Sheets of Hydroxyapatite
... Particle size distribution of unmodified and modified hydroxyapatite in TEM images was undertaken using a UTHSCSA Image Tool image analyzer program (IT version ...particle size measured using a two point ...
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