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090 _a647440
100 _a20160411a2013 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aThe structure of an rf-magnetron sputter-deposited silicate-containinghydroxyapatite-based coating investigated by high-resolution techniques
_fM. A. Surmeneva [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 46 (44 tit.)]
330 _aA 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.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tSurface and Coatings Technology
463 _tVol. 218
_v[P. 39-46]
_d2013
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _acalcium phosphate
610 1 _acoatings
610 1 _ananocomposites
610 1 _aimplants
610 1 _aфосфат кальция
610 1 _aпокрытия
610 1 _aнанокомпозиты
610 1 _aимплантаты
701 1 _aSurmeneva (Ryabtseva)
_bM. A.
_cspecialist in the field of material science
_cengineer-researcher of Tomsk Polytechnic University, Associate Scientist
_f1984-
_gMaria Alexandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\31894
701 1 _aChaikina
_bM. V.
701 1 _aZaikovskiv
_bV. I.
701 1 _aPichugin
_bV. F.
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_cPhysicist
_f1944-
_gVladimir Fyodorovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30933
701 1 _aBuck
_bV.
701 1 _aPrymak
_bO.
701 1 _aEpple
_bM.
701 1 _aSurmenev
_bR. A.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, Senior researcher, Candidate of physical and mathematical sciences
_f1982-
_gRoman Anatolievich
_2stltpush
_3(RuTPU)RU\TPU\pers\31885
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра теоретической и экспериментальной физики (ТиЭФ)
_bЦентр технологий (ЦТ)
_h408
_2stltpush
_3(RuTPU)RU\TPU\col\20620
801 2 _aRU
_b63413507
_c20210512
_gRCR
856 4 _uhttp://dx.doi.org/10.1016/j.surfcoat.2012.12.023
942 _cCF