نتایج جستجو برای: fa

تعداد نتایج: 16778  

Journal: :journal of ultrafine grained and nanostructured materials 2013
nasrin sasani heydar khadivi ayask seyed mojtaba zebarjad jalil vahdati khaki

high purity fluorapatite (fa) with rod-like and spherical-like morphology was synthesized via sol-gel method. chemical characterization of fa powders was done by xrd and ftir analyses. crystallite samples were calculated using scherer method. morphology of fa powders was investigated with tem and sem images. the results revealed that increasing the time of hydrolysis of phosphate sols significa...

Journal: :TRAVESSIA - revista do migrante 2013

Journal: :Carnets de géographes 2011

Journal: :Journal of the Japan Society for Precision Engineering 1999

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