2020
Benchmarking of additive manufacturing technologies for commerciallypure-titanium bone-tissue-engineering scaffolds: processing-microstructureproperty relationship
MONTUFAR, E. B., S. TKACHENKO, M. CASAS-LUNA, Pavel SKARVADA, Karel SLAMECKA et. al.Základní údaje
Originální název
Benchmarking of additive manufacturing technologies for commerciallypure-titanium bone-tissue-engineering scaffolds: processing-microstructureproperty relationship
Autoři
MONTUFAR, E. B. (garant), S. TKACHENKO, M. CASAS-LUNA, Pavel SKARVADA (203 Česká republika), Karel SLAMECKA (203 Česká republika), S. DIAZ-DE-LA-TORRE, Daniel KOUTNY (203 Česká republika), David PALOUSEK (203 Česká republika), Zuzana KOLEDOVÁ (703 Slovensko, domácí), L. HERNANDEZ-TAPIA, Tomas ZIKMUND (203 Česká republika), Ladislav CELKO (203 Česká republika) a J. KAISER
Vydání
ADDITIVE MANUFACTURING, AMSTERDAM, ELSEVIER, 2020, 2214-8604
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
21100 2.11 Other engineering and technologies
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 10.998
Kód RIV
RIV/00216224:14110/20:00117940
Organizační jednotka
Lékařská fakulta
UT WoS
000600807800102
Klíčová slova anglicky
Robocasting; Selective laser melting; Pressure-less spark plasma sintering; Titanium; Bone scaffold
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 6. 5. 2021 13:04, Mgr. Tereza Miškechová
Anotace
V originále
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.
Návaznosti
ROZV/28/LF19/2020, interní kód MU |
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90110, velká výzkumná infrastruktura |
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