نتایج جستجو برای: crystallite

تعداد نتایج: 2291  

2015
U. Batra S. Kapoor A. Dua

In this study, the effects and interactions of reaction time and capping agent assistance during sol-gel synthesis of magnesium substituted hydroxyapatite nanopowder (MgHA) on hydroxyapatite (HA) to β-tricalcium phosphate (β-TCP) ratio, Ca/P ratio and mean crystallite size was examined experimentally as well as through statistical analysis. MgHA nanopowders were synthesized by sol-gel technique...

2015
A. Gholizadeh

Received 10 April 2015 Accepted 11 October 2015 Available online 30 September 2015 In this work, structural and magnetic properties of the LaMnO3+δ compound prepared by citrate precursor method and annealed in the presence of oxygen are investigated. The structural characterization of LaMnO3+δ by X-ray powder diffraction and X‟pert package and Fullprof program provides evidence for a rhombohedr...

2017
Zhaolong Li Swapna Ganapathy Yaolin Xu Jouke R. Heringa Quanyao Zhu Wen Chen Marnix Wagemaker

The lithium air, or Li-O2, battery system is a promising electrochemical energy storage system because of its very high theoretical specific energy, as required by automotive applications. Fundamental research has resulted in much progress in mitigating detrimental (electro)chemical processes; however, the detailed structural evolution of the crystalline Li2O2 and LiOH discharge products, held ...

In this paper, the production of Al2O3-Mo nano-composites via mechanical milling was investigated. Molybdenum and alumina powders with certain ratios were grounded in a planetary ball mill at different times. XRD technique was used to determine the crystallite size of the milled powders. The microstructure of milled powders was studied using optical and electron microscopes. The crystallite siz...

Journal: :Journal of the Ceramic Association, Japan 1982

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1987

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