نتایج جستجو برای: modified williamson hall method
تعداد نتایج: 1891343 فیلتر نتایج به سال:
In this research, ZrO2 nanoparticles were synthesized by modified sol-gelmethod at different calcination temperatures (600, 800, 1000, 1200 °C). Zirconium (IV) oxynitrate hydrate as zirconium source, gelatin as polymerization and stabilizer agent and distilled water was used as the solvent. The crystal structures of the synthesized samples were characterized by X-ray diffraction (XRD) and the ...
In this research, Zn0.97Cu0.03O nanoparticles are prepared by sol-gel method using various stabilizers (Mono, Di, and Tri-ethanolamine). The effect of stabilizers on the structural, morphological and optical properties of the nanoparticles were investigated. Study of X-ray diffraction pattern shows the hexagonal wurtzite structure of samples. The crystallite size, strain, stress, and deformatio...
In this research, lead-free piezoelectric Sodium potassium niobate nanopowders (K0.5Na0.5)NbO3 were synthesized using a modified sol–gel method. Nitrate sodium, nitrate potassium, and ammonium niobate oxalate were used as starting materials. Gelatin which is natural polymer was used as polymerization agent and distilled water was used as solvent. The crystal structure of the prepared powders is...
This research report related to nano-sized particles of tetragonal rutile phase TiO2. We havesuccessfully synthesized TiO2 nanoparticles, by chemical method non-toxic and bio-safe, at lower than 100°C. This method is simple, economic and friendly for environmentally and suitable for large scale grains. Using of choline chloride, to decrease the size of commercial TiO2 by chemical method. ...
Although embedded Ge nanocrystals (NCs) have been grown by variety of techniques and its properties have been studied extensively, intrinsic properties of isolated Ge NCs have not been studied properly due to lack of proper synthesis technique. Here we report on the synthesis of freestanding Ge nanoparticles (NPs) down to approximately 7 nm using ball milling technique and study its structural ...
Diffraction peak profiles were calculated numerically for dislocation ensembles with different spatial arrangements and correlations between the Burgers vector signs. The latter property determines stored elastic energy in crystal width of diffraction peaks. It is shown that within approximation asymptotic line-profile theory relationship breadth magnitude modified Williamson-Hall (mWH) plot li...
In this study, an abundant and eco-friendly photocatalytic material, Fe2O3 particles were synthesized by sonochemical method. Morphological microstructural investigations of undoped Ni, Co-doped performed. The effect particle morphology microstructure on its performance was further investigated. Comparative studies for evaluating crystallite sizes conducted Williamson-Hall (W-H) method modified...
An improvement to the classical Williamson–Hall method is developed study several samples of AlGaN and α-MoO3.
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...
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