Detail publikačního výsledku

Improving the strength of β-TCP scaffolds produced by Digital Light Processing using two-step sintering

PAREDES SÁNCHEZ, C.; ROLEČEK, J.; MIRANDA, P.

Originální název

Improving the strength of β-TCP scaffolds produced by Digital Light Processing using two-step sintering

Anglický název

Improving the strength of β-TCP scaffolds produced by Digital Light Processing using two-step sintering

Druh

Článek WoS

Originální abstrakt

Digital Light Processing is combined with two-step sintering to obtain bioactive scaffolds with improved strength and mechanical isotropy. Highly loaded photosensitive suspensions were prepared from beta-TCP powder to create scaffolds consisting of interpenetrating struts with two different designs. Two sintering methods were used: conventional sintering (CS) and two-step sintering (2SS). The latter resulted in a microstructure with uniformly shaped grains and reduced porosity. Their compressive strength was determined by uniaxial testing under two different load configurations, with the force applied parallel or perpendicular to the building plane of the scaffolds. Design optimisation and fine-tuning of the sintering process helped in reducing the presence of interlayer defects and minimise the shear-dominated fractures. Isotropic fracture behaviour was achieved, with similar central values of the Weibull distribution (49 +/- 1 MPa vs. 51 +/- 1 MPa) along both testing directions, showing a great potential for their use in load-bearing bone tissue engineering applications.

Anglický abstrakt

Digital Light Processing is combined with two-step sintering to obtain bioactive scaffolds with improved strength and mechanical isotropy. Highly loaded photosensitive suspensions were prepared from beta-TCP powder to create scaffolds consisting of interpenetrating struts with two different designs. Two sintering methods were used: conventional sintering (CS) and two-step sintering (2SS). The latter resulted in a microstructure with uniformly shaped grains and reduced porosity. Their compressive strength was determined by uniaxial testing under two different load configurations, with the force applied parallel or perpendicular to the building plane of the scaffolds. Design optimisation and fine-tuning of the sintering process helped in reducing the presence of interlayer defects and minimise the shear-dominated fractures. Isotropic fracture behaviour was achieved, with similar central values of the Weibull distribution (49 +/- 1 MPa vs. 51 +/- 1 MPa) along both testing directions, showing a great potential for their use in load-bearing bone tissue engineering applications.

Klíčová slova

Scaffolds; Calcium phosphate; Mechanical properties; Digital Light Processing; Two-step sintering

Klíčová slova v angličtině

Scaffolds; Calcium phosphate; Mechanical properties; Digital Light Processing; Two-step sintering

Autoři

PAREDES SÁNCHEZ, C.; ROLEČEK, J.; MIRANDA, P.

Rok RIV

2025

Vydáno

01.04.2024

Nakladatel

ELSEVIER SCI LTD

Místo

London

ISSN

1873-619X

Periodikum

Journal of the European Ceramic Society

Svazek

44

Číslo

4

Stát

Spojené království Velké Británie a Severního Irska

Strany od

2571

Strany do

2580

Strany počet

10

URL

https://www.sciencedirect.com/science/article/pii/S0955221923009160?via%3Dihub

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245541

BibTex

@article{BUT187122,
  author="Claudia Isabel {Paredes Sánchez} and Jakub {Roleček} and Pedro {Miranda}",
  title="Improving the strength of β-TCP scaffolds produced by Digital Light Processing using two-step sintering",
  journal="Journal of the European Ceramic Society",
  year="2024",
  volume="44",
  number="4",
  pages="2571--2580",
  doi="10.1016/j.jeurceramsoc.2023.11.028",
  issn="0955-2219",
  url="https://www.sciencedirect.com/science/article/pii/S0955221923009160?via%3Dihub"
}

Dokumenty

1-s2.0-S0955221923009160-main