Surface Modification of Mg0.8Ca Alloy via Wollastonite Micro-Arc Coatings: Significant Improvement in Corrosion Resistance; Metals; Vol. 11, iss. 5

Surface Modification of Mg0.8Ca Alloy via Wollastonite Micro-Arc Coatings: Significant Improvement in Corrosion Resistance; Metals; Vol. 11, iss. 5

Detalles Bibliográficos
Parent link:Metals
Vol. 11, iss. 5.— 2021.— [754, 21 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Outros autores: Sedelnikova M. B. Mariya Borisovna, Ugodchikova A. V. Anna Vladimirovna, Tolkacheva T. V. Tatjyana Viktorovna, Chebodaeva V. V. Valentina Vadimovna, Glukhov I. A. Ivan Aleksandrovich, Khimich M. A. Margarita Andreevna, Bakina O. V. Olga Vladimirovna, Lerner M. I. Marat Izrailjevich, Egorkin V. S. Vladimir Sergeevich, Schmidt J. Jurgen, Sharkeev Yu. P. Yury Petrovich
Summary:Title screen
Biodegradable materials are currently attracting the attention of scientists as materials for implants in reconstructive medicine. At the same time, ceramics based on calcium silicates are promising materials for bone recovery, because Ca2+ and Si2+ ions are necessary for the mineralization process, and they take an active part in the formation of apatite. In the presented research, the protective silicate biocoatings on a Mg0.8Ca alloy were formed by means of the micro-arc oxidation method, and the study of their morphology, structure, phase composition, corrosion, and biological properties was carried out. Elongated crystals and pores were uniformly distributed over the surface of the coatings. The coated samples exhibited remarkable anti-corrosion properties in comparison with bare magnesium alloy because their corrosion current decreased 10 times, and their corrosion resistance increased almost 100 times. The coatings did not significantly affect the viability of the cells, even without the additional dilution of the extract, and were non-toxic according to ISO 10993-5: 2009. In this case, there was a significant difference in toxicity of the pure Mg0.8Ca alloy and the coated samples. Thus, the results demonstrated that the applied coatings significantly reduced the toxicity of the alloy.
Idioma:inglés
Publicado: 2021
Subjects:
электронный ресурс
труды учёных ТПУ
micro-arc oxidation
magnesium alloy
biocoating
wollastonite
bioresorption
corrosion resistance
cytocompatibility
микродуговое оксидирование
магниевые сплавы
биопокрытия
волластонит
Acceso en liña:https://doi.org/10.3390/met11050754
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667575

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