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
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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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 Clâ and OHâ 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
Journal: Progress in Natural Science: Materials International - Volume 26, Issue 6, December 2016, Pages 546-554
نویسندگان
Bahman Nasiri-Tabrizi, Wan Jefrey Basirun, Belinda Pingguan-Murphy,