Preparation and characterization of porous zinc prepared by spark plasma sintering as a material for biodegradable scaffolds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43914616" target="_blank" >RIV/60461373:22310/18:43914616 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/18:00499122 RIV/61389021:_____/18:00499122 RIV/60461373:22330/18:43914616

Result on the web

<a href="http://dx.doi.org/10.1016/j.matchemphys.2017.10.008" target="_blank" >http://dx.doi.org/10.1016/j.matchemphys.2017.10.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchemphys.2017.10.008" target="_blank" >10.1016/j.matchemphys.2017.10.008</a>

Result language

angličtina

Original language name

Preparation and characterization of porous zinc prepared by spark plasma sintering as a material for biodegradable scaffolds

Original language description

Recently, zinc-based materials have been extensively investigated as materials suitable for the fabrication of biodegradable orthopedic implants. In this study, porous zinc was prepared as a material for implantation into trabecular bone using spark plasma sintering with different sizes of initial zinc powders, and microstructural, mechanical and corrosion characterizations of the prepared materials were performed. The porosity of the prepared porous samples was approximately 20%. The mechanical properties depended on the initial powder particle size, the pore size and distribution. By using a finer powder (FP), &lt;100 mu m in size, the compressive yield strength and the compressive modulus were approximately 31.2 MPa and 1.2 GPa, respectively. These values approach those of trabecular bone (1-12 MPa and 0.1-0.4 GPa). Moreover, the plastic deformation of FP materials occurred at almost constant stress similar to trabecular bone. The corrosion rates of the porous Zn were 0.6-0.8 mm/a and depended on the initial powder particle size, the pore size and distribution. After pre-incubation of the porous Zn in simulated body fluid (SBF), the Zn concentration in biological extracts was below the toxic limit of zinc for L929 cells. Based on the obtained results, we can estimate that the materials prepared from the finer zinc powder showed properties suitable for the fabrication of porous biodegradable orthopedic implants.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

—

Volume of the periodical

203

Issue of the periodical within the volume

january

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

249-258

UT code for WoS article

000415771700030

EID of the result in the Scopus database

2-s2.0-85031926082