کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5450388 1398501 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanochemical preparation and structural characterization of Ta-doped chlorapatite nanopowders
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Mechanochemical preparation and structural characterization of Ta-doped chlorapatite nanopowders
چکیده انگلیسی
Nanocrystalline tantalum-doped chlorapatite (Ta-doped ClA) was successfully synthesized using a facile mechanochemical method. In the absence of the dopant, milling for 3 h led to the formation of a poorly crystalline hydroxyapatite, while in its presence of the Ta dopant, Ta-doped ClA nanopowders were produced as a result of an oncoming reaction. The results indicated that lattice micro-strain, crystallite size, crystallinity level, phase percentage and hexagonal lattice constants of the substituted apatite nanopowders were dramatically affected by the doping concentration. The a-axis and unit cell volume increased with the increase in the doping concentration, owing to the ionic radius difference of Cl− and OH− ions. From the TEM observations, the doped powders consisted of nanoneedles with a mean size of 60±20 nm in length and 14±4 nm in width.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 26, Issue 6, December 2016, Pages 546-554
نویسندگان
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