Model of heterogeneous material dissolution in simulated biological fluid

A. G. Knyazeva, E. Y. Gutmanas

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

In orthopedic research, increasing attention is being paid to bioresorbable/biodegradable implants as an alternative to permanent metallic bone healing devices. Biodegradable metal based implants possessing high strength and ductility potentially can be used in load bearing sites. Biodegradable Mg and Fe are ductile and Fe possess high strength, but Mg degrades too fast and Fe degrades too slow, Ag is a noble metal and should cause galvanic corrosion of the more active metallic iron-thus, corrosion of Fe can be increased. Nanostructuring should results in higher strength and can result in higher rate of dissolution/degradation from grain boundaries. In this work, a simple dissolution model of heterogeneous three phase nanocomposite material is considered-two phases being metal Fe and Ag and the third-nanopores. Analytical solution for the model is presented. Calculations demonstrate that the changes in the relative amount of each phase depend on mass exchange and diffusion coefficients. Theoretical results agree with preliminary experimental results.

Язык оригиналаАнглийский
Название основной публикацииNew Operational Technologies, NEWOT 2015
Подзаголовок основной публикацииProceedings of the 5th International Scientific Conference "New Operational Technologies"
ИздательAmerican Institute of Physics Inc.
Том1688
ISBN (электронное издание)9780735413351
DOI
СостояниеОпубликовано - 17 ноя 2015
Событие5th International Scientific Conference on New Operational Technologies, NEWOT 2015 - Tomsk, Российская Федерация
Продолжительность: 29 сен 201530 сен 2015

Конференция

Конференция5th International Scientific Conference on New Operational Technologies, NEWOT 2015
СтранаРоссийская Федерация
ГородTomsk
Период29.9.1530.9.15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Цитировать

    Knyazeva, A. G., & Gutmanas, E. Y. (2015). Model of heterogeneous material dissolution in simulated biological fluid. В New Operational Technologies, NEWOT 2015: Proceedings of the 5th International Scientific Conference "New Operational Technologies" (Том 1688). [030019] American Institute of Physics Inc.. https://doi.org/10.1063/1.4936014