Tailoring the Surface Morphology and the Crystallinity State of Cu- and Zn-Substituted Hydroxyapatites on Ti and Mg-Based Alloys
| Parent link: | Materials Vol. 13, iss. 19.— 2020.— [4449, 20 p.] |
|---|---|
| Corporate Author: | |
| Other Authors: | , , , , , |
| Summary: | Title screen Titanium-based alloys are known as a “gold standard” in the field of implantable devices. Mg-based alloys, in turn, are very promising biocompatible material for biodegradable, temporary implants. However, the clinical application of Mg-based alloys is currently limited due to the rapid resorption rate in the human body. The deposition of a barrier layer in the form of bioactive calcium phosphate coating is proposed to decelerate Mg-based alloys resorption. The dissolution rate of calcium phosphates is strongly affected by their crystallinity and structure. The structure of antibacterial Cu- and Zn-substituted hydroxyapatite deposited by an radiofrequency (RF) magnetron sputtering on Ti and Mg–Ca substrates is tailored by post-deposition heat treatment and deposition at increased substrate temperatures. It is established that upon an increase in heat treatment temperature mean crystallite size decreases from 47 ± 17 to 13 ± 9 nm. The character of the crystalline structure is not only governed by the temperature itself but relies on the condition such as either post-deposition treatment, where an amorphous calcium phosphate undergoes crystallization or instantaneous crystalline coating growth during deposition on the hot substrate. A higher treatment temperature at 700 °C results in local coating micro-cracking and induced defects, while the temperature of 400–450 °C resulted in the formation of dense, void-free structure. |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://doi.org/10.3390/ma13194449 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666121 |
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| 200 | 1 | |a Tailoring the Surface Morphology and the Crystallinity State of Cu- and Zn-Substituted Hydroxyapatites on Ti and Mg-Based Alloys |f K. A. Prosolov, V. V. Lastovka, O. A. Belyavskaya [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 61 tit.] | ||
| 330 | |a Titanium-based alloys are known as a “gold standard” in the field of implantable devices. Mg-based alloys, in turn, are very promising biocompatible material for biodegradable, temporary implants. However, the clinical application of Mg-based alloys is currently limited due to the rapid resorption rate in the human body. The deposition of a barrier layer in the form of bioactive calcium phosphate coating is proposed to decelerate Mg-based alloys resorption. The dissolution rate of calcium phosphates is strongly affected by their crystallinity and structure. The structure of antibacterial Cu- and Zn-substituted hydroxyapatite deposited by an radiofrequency (RF) magnetron sputtering on Ti and Mg–Ca substrates is tailored by post-deposition heat treatment and deposition at increased substrate temperatures. It is established that upon an increase in heat treatment temperature mean crystallite size decreases from 47 ± 17 to 13 ± 9 nm. The character of the crystalline structure is not only governed by the temperature itself but relies on the condition such as either post-deposition treatment, where an amorphous calcium phosphate undergoes crystallization or instantaneous crystalline coating growth during deposition on the hot substrate. A higher treatment temperature at 700 °C results in local coating micro-cracking and induced defects, while the temperature of 400–450 °C resulted in the formation of dense, void-free structure. | ||
| 461 | |t Materials | ||
| 463 | |t Vol. 13, iss. 19 |v [4449, 20 p.] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a RF-magnetron sputtering | |
| 610 | 1 | |a calcium phosphate | |
| 610 | 1 | |a TEM | |
| 610 | 1 | |a annealing | |
| 610 | 1 | |a biomaterials | |
| 610 | 1 | |a ВЧ-магнетронное распыление | |
| 610 | 1 | |a фосфат кальция | |
| 610 | 1 | |a отжиг | |
| 610 | 1 | |a биоматериалы | |
| 701 | 1 | |a Prosolov |b K. A. |c Physicist |c Junior research fellow of Tomsk Polytechnic University |f 1991- |g Konstantin Alexandrovich |3 (RuTPU)RU\TPU\pers\47153 | |
| 701 | 1 | |a Lastovka |b V. V. |g Vladimir Viktorovich | |
| 701 | 1 | |a Belyavskaya |b O. A. |g Olga Andreevna | |
| 701 | 1 | |a Lychagin |b D. V. |c specialist in the field of mechanical engineering |c Professor of Yurga technological Institute of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1957- |g Dmitry Vasilievich |3 (RuTPU)RU\TPU\pers\31402 | |
| 701 | 1 | |a Schmidt |b J. |g Jurgen | |
| 701 | 1 | |a Sharkeev |b Yu. P. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1950- |g Yury Petrovich |3 (RuTPU)RU\TPU\pers\32228 |9 16228 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
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