Benchmarking of additive manufacturing technologies for commerciallypure-titanium bone-tissue-engineering scaffolds: processing-microstructureproperty relationship

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F20%3A00117940" target="_blank" >RIV/00216224:14110/20:00117940 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26620/20:PU137232

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2214860420308885?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214860420308885?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.addma.2020.101516" target="_blank" >10.1016/j.addma.2020.101516</a>

Result language

angličtina

Original language name

Benchmarking of additive manufacturing technologies for commerciallypure-titanium bone-tissue-engineering scaffolds: processing-microstructureproperty relationship

Original language description

This work provides the benchmarking of two additive manufacturing (AM) technologies suitable for the fabrication of commercially pure titanium scaffolds for bone tissue engineering, i.e., selective laser melting (SLM) and robocasting. SLM is a powder bed fusion technique that is industrially used for the AM of titanium parts, whereas robocasting is an extrusion technique mainly studied for the fabrication of ceramic scaffolds that requires post-sintering for the consolidation. A novelty of this work is to combine robocasting with pressure-less spark plasma sintering (PL-SPS) for the fabrication and fast consolidation of titanium scaffolds. The results show that the metallurgical phenomena occurring in both techniques are different. Melting and fast solidification in SLM produced martensitic-like microstructure of titanium with low microporosity (6 %). In contrast, solid-state sintering in robocasting resulted in the equiaxed grain microstructure of alpha titanium phase with 13 % of microporosity. The mechanical performance of the scaffolds was determined by the microporosity of the rods rather than microstructure. Consequently, robocasting resulted in lower compressive yield strength and effective elastic modulus than SLM, which were in the range of human trabecular bone. Finally, both AM technologies produced cytocompatible scaffolds that showed evidence of in vitro osteogenic activity.

Czech name

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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

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OECD FORD branch

21100 - Other engineering and technologies

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

ADDITIVE MANUFACTURING

ISSN

2214-8604

e-ISSN

2214-7810

Volume of the periodical

36

Issue of the periodical within the volume

DEC 2020

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

1-13

UT code for WoS article

000600807800102

EID of the result in the Scopus database

2-s2.0-85090421883