The structure of an rf-magnetron sputter-deposited silicate-containinghydroxyapatite-based coating investigated by high-resolution techniques; Surface and Coatings Technology; Vol. 218

The structure of an rf-magnetron sputter-deposited silicate-containinghydroxyapatite-based coating investigated by high-resolution techniques; Surface and Coatings Technology; Vol. 218

書目詳細資料
Parent link:Surface and Coatings Technology
Vol. 218.— 2013.— [P. 39-46]
企業作者: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра теоретической и экспериментальной физики (ТиЭФ) Центр технологий (ЦТ)
其他作者: Surmeneva M. A. Maria Alexandrovna, Chaikina M. V., Zaikovskiv V. I., Pichugin V. F. Vladimir Fyodorovich, Buck V., Prymak O., Epple M., Surmenev R. A. Roman Anatolievich
總結:Title screen
A biocompatible nanostructured silicate-containing hydroxyapatite-based (Si-HA) thin coating was deposited by radio-frequency (RF) magnetron sputtering on silicon and titanium substrates. The morphology of the Si-HA coating was pore-free, dense and followed the topography of the underlying substrates. Energy-dispersive X-ray spectroscopy (EDX) gave molar Ca/P and Ca/(P + Si) ratios of 1.78 and 1.45, respectively. According to XRD-analysis, the coating was nanocrystalline with a crystallite size in the range of 10-50 nm. The ultrastructure of the coating was analyzed by high-resolution transmission electron spectroscopy (HRTEM) combined with fast Fourier transform (FFT) analysis. The average crystallite size calculated by the Rietveld method was in good agreement with the HRTEM results. Moreover, HRTEM-observations indicated the presence of atomic layer misorientations originating from imperfections between the nanocrystals in the coating. The average coating nanohardness (11.6 ± 1.7 GPa) was significantly higher than that of the uncoated Ti substrate (4.0 ± 0.3 GPa), whereas no significant difference between the Young's modulus of the coating (125 ± 20 GPa) and the substrate (115 ± 10 GPa) was found. Immersion of the coated substrates in simulated body fluid (SBF) led to the deposition of an apatite layer.
Режим доступа: по договору с организацией-держателем ресурса
語言:英语
出版: 2013
主題:
электронный ресурс
труды учёных ТПУ
calcium phosphate
coatings
nanocomposites
implants
фосфат кальция
покрытия
нанокомпозиты
имплантаты
在線閱讀:http://dx.doi.org/10.1016/j.surfcoat.2012.12.023
格式: 電子 Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647440

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