Micromechanical interaction of nitinol with carbon-based coatings; Diamond and Related Materials; Vol. 166
| Parent link: | Diamond and Related Materials.— .— Amsterdam: Elsevier B.V. Vol. 166.— 2026.— Article number 113732, 16 p. |
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| Altres autors: | , , , , , , , , , , , , |
| Sumari: | Title screen The micromechanical properties, adhesion, and surface roughness of silicon- and oxygen-containing hydrocarbon coatings (a-C:H:SiOx) and their titanium-doped counterpart (a-C:H:SiOx:Ti), as well as a non‑hydrogenated DLC coating, deposited on a Ni49.9Ti50.1 (NiTi) alloy used for vascular stents, were investigated. Nanoindentation and microscratch tests revealed that the a-C:H:SiOx and a-C:H:SiOx:Ti coatings exhibit critical loads Lc1 of 18–23 N and ≥23 N, respectively, which significantly exceed those of the DLC coating (4–8 N). The hardness of the a-C:H:SiOx and a-C:H:SiOx:Ti coatings is 14–15 GPa, whereas the DLC coating has a hardness of approximately 41 GPa. Transmission electron microscopy and X-ray photoelectron spectroscopy showed that all coatings are amorphous; titanium doping (0.6 at.%) does not lead to the formation of Tisingle bondC chemical bonds. The a-C:H:SiOx and a-C:H:SiOx:Ti coatings retain a low average surface roughness (Sa ≈ 0.21–0.28 μm) with pronounced valleys (Sv ≈ 0.77–0.99 μm), while the DLC coating increases the roughness to Sa ≈ 0.30 μm. The combination of high adhesion, moderate hardness, and favorable surface topography makes a-C:H:SiOx-type coatings, particularly the Ti-doped variant, a promising approach for enhancing the functionality and durability of NiTi-based vascular stents Текстовый файл AM_Agreement |
| Idioma: | anglès |
| Publicat: |
2026
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1016/j.diamond.2026.113732 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=687391 |
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| 200 | 1 | |a Micromechanical interaction of nitinol with carbon-based coatings |f A. S. Grenadyorov, A. A. Solovyev, N. E. Madzhara [et al.] | |
| 203 | |a Текст |c электронный |b визуальный | ||
| 283 | |a online_resource |2 RDAcarrier | ||
| 300 | |a Title screen | ||
| 320 | |a References: 52 tit | ||
| 330 | |a The micromechanical properties, adhesion, and surface roughness of silicon- and oxygen-containing hydrocarbon coatings (a-C:H:SiOx) and their titanium-doped counterpart (a-C:H:SiOx:Ti), as well as a non‑hydrogenated DLC coating, deposited on a Ni49.9Ti50.1 (NiTi) alloy used for vascular stents, were investigated. Nanoindentation and microscratch tests revealed that the a-C:H:SiOx and a-C:H:SiOx:Ti coatings exhibit critical loads Lc1 of 18–23 N and ≥23 N, respectively, which significantly exceed those of the DLC coating (4–8 N). The hardness of the a-C:H:SiOx and a-C:H:SiOx:Ti coatings is 14–15 GPa, whereas the DLC coating has a hardness of approximately 41 GPa. Transmission electron microscopy and X-ray photoelectron spectroscopy showed that all coatings are amorphous; titanium doping (0.6 at.%) does not lead to the formation of Tisingle bondC chemical bonds. The a-C:H:SiOx and a-C:H:SiOx:Ti coatings retain a low average surface roughness (Sa ≈ 0.21–0.28 μm) with pronounced valleys (Sv ≈ 0.77–0.99 μm), while the DLC coating increases the roughness to Sa ≈ 0.30 μm. The combination of high adhesion, moderate hardness, and favorable surface topography makes a-C:H:SiOx-type coatings, particularly the Ti-doped variant, a promising approach for enhancing the functionality and durability of NiTi-based vascular stents | ||
| 336 | |a Текстовый файл | ||
| 371 | 0 | |a AM_Agreement | |
| 461 | 1 | |t Diamond and Related Materials |c Amsterdam |n Elsevier B.V. | |
| 463 | 1 | |t Vol. 166 |v Article number 113732, 16 p. |d 2026 | |
| 610 | 1 | |a Nitinol | |
| 610 | 1 | |a Vascular stents | |
| 610 | 1 | |a Hydrocarbon coatings | |
| 610 | 1 | |a Diamond-like carbon | |
| 610 | 1 | |a Adhesion | |
| 610 | 1 | |a Micromechanics | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 701 | 1 | |a Grenaderov |b A. S. |g Aleksandr Sergeevich | |
| 701 | 1 | |a Solovjev |b A. A. | |
| 701 | 1 | |a Madzhara |b N. E. |g Nikita Evgenjevich | |
| 701 | 1 | |a Dzhambulova |b T. |g Tomiris | |
| 701 | 1 | |a Oskomov |b K. V. |g Konstantin Vladimirovich | |
| 701 | 1 | |a Zuza |b D. A. |g Daniil Aleksandrovich | |
| 701 | 1 | |a Semin |b V. O. |g Viktor Olegovich | |
| 701 | 1 | |a Yasenchuk |b Yu. F. | |
| 701 | 1 | |a Chekalkin |b T. L. | |
| 701 | 1 | |a Yuriev |b Yu. N. |c specialist in the field of hydrogen energy |c Head of the laboratory of Tomsk Polytechnic University, Associate Scientist |f 1984- |g Yuri Nikolaevich |9 15669 | |
| 701 | 1 | |a Runts |b А. А. |c physicist |c Engineer of Tomsk Polytechnic University |f 1998- |g Artem Alekseevich |9 89330 | |
| 701 | 1 | |a Korneva |b O. S. |c physicist |c engineer of Tomsk Polytechnic University |f 1988- |g Olga Sergeevna |9 20156 | |
| 701 | 1 | |a Volynsky |b A. A. | |
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