Effect of uniaxial load on the sintering behaviour of 45S5 Bioglass® powder compacts

Guillon, Olivier; Cao, Shukun; Chang, Jung Min; Wondraczek, Lothar; Boccaccını, Aldo R.

doi:10.1016/j.jeurceramsoc.2010.12.031

Cited by 32 publications

(28 citation statements)

References 27 publications

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“…The microcracks became enlarged and more numerous with further increase of 45S5 content to 15 wt % (Figure 3f). The emergence of microcracks might be due to the formation of a glassy continuous phase which led to a mismatch of the thermal expansion coefficient between β-TCP (13.1 × 10 −6 K −1 ) and 45S5 (14.6 × 10 −6 K −1 ) when the content was too high [34,35]. The microcracks were the reason for the decrease of mechanical properties.…”

Section: Resultsmentioning

confidence: 99%

Liquid Phase Sintered Ceramic Bone Scaffolds by Combined Laser and Furnace

Feng

Deng

Duan

et al. 2014

IJMS

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Fabrication of mechanically competent bioactive scaffolds is a great challenge in bone tissue engineering. In this paper, β-tricalcium phosphate (β-TCP) scaffolds were successfully fabricated by selective laser sintering combined with furnace sintering. Bioglass 45S5 was introduced in the process as liquid phase in order to improve the mechanical and biological properties. The results showed that sintering of β-TCP with the bioglass revealed some features of liquid phase sintering. The optimum amount of 45S5 was 5 wt %. At this point, the scaffolds were densified without defects. The fracture toughness, compressive strength and stiffness were 1.67 MPam1/2, 21.32 MPa and 264.32 MPa, respectively. Bone like apatite layer was formed and the stimulation for apatite formation was increased with increase in 45S5 content after soaking in simulated body fluid, which indicated that 45S5 could improve the bioactivity. Furthermore, MG-63 cells adhered and spread well, and proliferated with increase in the culture time.

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Section: Resultsmentioning

confidence: 99%

Liquid Phase Sintered Ceramic Bone Scaffolds by Combined Laser and Furnace

Feng

Deng

Duan

et al. 2014

IJMS

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“…One of the most useful methods to densify a porous film is hot pressing. Although hot pressing has been used for green body consolidation in powder metallurgy [24,25], it has not yet been applied to CIGS film densification. In this work, we initially applied normal loading on the screen-printed CIGS film during RTA.…”

Section: Introductionmentioning

confidence: 99%

CIGS absorber preparation by non-vacuum particle-based screen printing and RTA densification

et al. 2016

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“…Here, ρ 0 , ρ C , and ρ G represent the individual relative densities of the debindered powder compacts, and the absolute densities of composite and as‐made glass, respectively. Simultaneous presentation of axial shrinkage and ρ allows, e.g., illustrative separation of the effect of external constraints and load‐induced viscous flow . For example, for ρ 0 = 0.6, 0.7, and 0.8, maximum shrinkage of 0.15, 0.11, and 0.07 can be expected from Eq.…”

Section: Methodsmentioning

confidence: 99%

Sintering of 3D‐Printed Glass/HAp Composites

et al. 2012

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We report the sintering of 3D‐printed composites of 13‐93 bioactive glass and hydroxyapatite (HAp) powders. The sintering process is characterized on conventionally produced powder compacts with varying HAp content. A numeric approximation of the densification kinetics is then obtained on the basis of Frenkel, Mackenzie–Shuttleworth, and Einstein–Roscoe models, and optimized sintering conditions for 3D‐printed structures are derived. Fully isotropic sintering of complex cellular composites is obtained by continuous heating to 750°C at a rate of 2 K/min for a HAp content of 40 wt%. The approach can readily be generalized for printing and sintering of similar glass‐ceramic composites.

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Effect of uniaxial load on the sintering behaviour of 45S5 Bioglass® powder compacts

Cited by 32 publications

References 27 publications

Liquid Phase Sintered Ceramic Bone Scaffolds by Combined Laser and Furnace

Liquid Phase Sintered Ceramic Bone Scaffolds by Combined Laser and Furnace

CIGS absorber preparation by non-vacuum particle-based screen printing and RTA densification

Sintering of 3D‐Printed Glass/HAp Composites

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