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Demidenko, N. I.; Stetsovskii, A.P.

doi:10.1023/a:1027335124793

Cited by 10 publications

(1 citation statement)

References 1 publication

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“…Therefore, the coefficient of the ceramic mixtures was estimated with a rule of mixtures starting from the coefficients of the individual phases, i.e. apatite-wollastonite glass-ceramic and wollastonite [19,20].…”

Section: Mechanical Testing Of 3d-printed Tabletsmentioning

confidence: 99%

3D-printed silicate porous bioceramics using a non-sacrificial preceramic polymer binder

et al. 2015

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Silicate bioceramics possess an excellent bioactivity; however, shaping them into complex geometries is still challenging. Therefore, this paper aims to present a new strategy for the shaping of a bioglass-ceramic with controlled geometry and properties starting from a glass powder combined with a preceramic polymer, i.e. a silicon resin, and reactive fillers. The powder-based three-dimensional (3D)-printing of wollastonite (CaSiO3)-based silicate bioceramic parts was demonstrated in this work. The resin plays a dual role, as it not only acts as a non-sacrificial binder for the filler powders in the printing process but it also reacts with the fillers to generate the desired bioceramic phases. The mechanical and physical properties, i.e. ball-on-three-balls test, density, porosity and morphology, were evaluated in 3D-printed discs. These samples possessed a total porosity around 64 vol% and a biaxial flexural strength around 6 MPa. The raw materials used in this work also enabled the 3D-printing of scaffolds possessing a designed multi-scale porosity, suitable bioceramic phase assemblage and a compressive strength of 1 MPa (for cylindrical scaffolds with total porosity ~80 vol%). Solubility in TRIS/HCl and in vitro assays, i.e. viability, cytotoxicity and apoptosis assays, were also performed. In vitro tests indicated good cell viability and no cytotoxicity effect on the cells.

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Section: Mechanical Testing Of 3d-printed Tabletsmentioning

confidence: 99%

3D-printed silicate porous bioceramics using a non-sacrificial preceramic polymer binder

et al. 2015

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Effect of Reaction Layers on Internal Stresses in Co‐Fired Multilayers of Calcium Manganate and Calcium Cobaltite

Stargardt,

Bresch,

Falkenberg

et al. 2024

Physica Status Solidi (a)

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A widespread recovery of waste heat requires a cost‐effective production of thermoelectric generators. Thermoelectric oxides are predestined for use at high temperatures. For manufacturing reasons, a multilayer generator design will be easily scalable and cost‐effective. To evaluate the potential of ceramic multilayer technology for that purpose, a multilayer of the promising thermoelectric oxides calcium cobaltite (Ca3Co4O9), calcium manganate (CMO, CaMnO3), and glass–ceramic insulation layers is fabricated. Cracks and reaction layers at the interfaces are observed in the microstructure. The compositions of these reaction layers are identified by energy‐dispersive X‐ray spectroscopy and X‐ray diffraction. Mechanical and thermal properties of all layers are compiled from literature or determined by purposeful sample preparation and testing. Based on this data set, the internal stresses in the multilayer after co‐firing are calculated numerically. It is shown that tensile stresses in the range of 50 MPa occur in the CMO layers. The reaction layers have only a minor influence on the level of these residual stresses. Herein, it is proven that the material system is basically suitable for multilayer generator production, but that the co‐firing process and the layer structure must be adapted to improve densification and reduce the tensile stresses in the CMO.

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Investigation of the structural, electronic and mechanical properties of Ca-SiO2 compound particles in steel based on density functional theory

Lyu

et al. 2023

Int J Miner Metall Mater

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Cited by 10 publications

References 1 publication

3D-printed silicate porous bioceramics using a non-sacrificial preceramic polymer binder

3D-printed silicate porous bioceramics using a non-sacrificial preceramic polymer binder

Effect of Reaction Layers on Internal Stresses in Co‐Fired Multilayers of Calcium Manganate and Calcium Cobaltite

Investigation of the structural, electronic and mechanical properties of Ca-SiO2 compound particles in steel based on density functional theory

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