Atomic structure of Ca–Mg biodegradable metallic glass

K. Saksl, Z. Molčanová, J. Ďurišin, P. Jóvári, Michalik, L. Temleitner, B. Ballóková, V. Girman, Y. Katuna, M. Šuliková, K. Šuľová, M. Fejerčák, M. Lisnichuk, A. Lachová, L. Kapuscinský

Research output: Article

Abstract

Very low density eutectic Ca72Mg28 at.% alloy is a precursor of complex biodegradable alloys with potential use as bioresorbable alloy for orthopaedic applications. The structure of the amorphous alloy was investigated by using X-ray, neutron diffraction and reverse Monte Carlo (RMC) modelling. The RMC configuration was decomposed into polyhedral holes whose faces are all triangles consisting of chemical bonds. Free volumes in the respective polyhedral holes were evaluated with reference to the packing efficiency of crystalline CaMg2 HCP phase. The tetrahedral holes, accounting for about 55% of the whole space, are regarded as densely packed units because the average packing efficiency of them is approximately equal to that of the corresponding crystal phase. At the same time, various types of polyhedral holes which have a certain free volume have been observed, and some of them are connected with each other. The densely packed coordination polyhedra consisting only of tetrahedral holes tend to be clustered.

Original languageEnglish
Pages (from-to)651-657
Number of pages7
JournalJournal of Alloys and Compounds
Volume801
DOIs
Publication statusPublished - szept. 15 2019

Fingerprint

Metallic glass
Free volume
Chemical bonds
Orthopedics
Amorphous alloys
Neutron diffraction
Eutectics
Crystalline materials
X rays
Crystals

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Saksl, K., Molčanová, Z., Ďurišin, J., Jóvári, P., Michalik, Temleitner, L., ... Kapuscinský, L. (2019). Atomic structure of Ca–Mg biodegradable metallic glass. Journal of Alloys and Compounds, 801, 651-657. https://doi.org/10.1016/j.jallcom.2019.06.120

Atomic structure of Ca–Mg biodegradable metallic glass. / Saksl, K.; Molčanová, Z.; Ďurišin, J.; Jóvári, P.; Michalik; Temleitner, L.; Ballóková, B.; Girman, V.; Katuna, Y.; Šuliková, M.; Šuľová, K.; Fejerčák, M.; Lisnichuk, M.; Lachová, A.; Kapuscinský, L.

In: Journal of Alloys and Compounds, Vol. 801, 15.09.2019, p. 651-657.

Research output: Article

Saksl, K, Molčanová, Z, Ďurišin, J, Jóvári, P, Michalik, Temleitner, L, Ballóková, B, Girman, V, Katuna, Y, Šuliková, M, Šuľová, K, Fejerčák, M, Lisnichuk, M, Lachová, A & Kapuscinský, L 2019, 'Atomic structure of Ca–Mg biodegradable metallic glass', Journal of Alloys and Compounds, vol. 801, pp. 651-657. https://doi.org/10.1016/j.jallcom.2019.06.120
Saksl K, Molčanová Z, Ďurišin J, Jóvári P, Michalik, Temleitner L et al. Atomic structure of Ca–Mg biodegradable metallic glass. Journal of Alloys and Compounds. 2019 szept. 15;801:651-657. https://doi.org/10.1016/j.jallcom.2019.06.120
Saksl, K. ; Molčanová, Z. ; Ďurišin, J. ; Jóvári, P. ; Michalik ; Temleitner, L. ; Ballóková, B. ; Girman, V. ; Katuna, Y. ; Šuliková, M. ; Šuľová, K. ; Fejerčák, M. ; Lisnichuk, M. ; Lachová, A. ; Kapuscinský, L. / Atomic structure of Ca–Mg biodegradable metallic glass. In: Journal of Alloys and Compounds. 2019 ; Vol. 801. pp. 651-657.
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