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Colloidal forming of macroporous calcium pyrophosphate bioceramics in 3D-printed molds 被引量:1
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作者 Ya.Yu Filippov e.d.orlov +4 位作者 E.S.Klimashina P.V.Evdokimov T.V.Safronova V.I.Putlayev J.V.Rau 《Bioactive Materials》 SCIE 2020年第2期309-317,共9页
A technique for colloidal forming of Ca2P2O7 macroporous bioceramics,based on low-pressure injection molding(LPIM)of a glycerol-water slip containing Ca2P2O7 and Ca(Н2PO4)2 into a plastic mold fabricated via FDM 3Dpr... A technique for colloidal forming of Ca2P2O7 macroporous bioceramics,based on low-pressure injection molding(LPIM)of a glycerol-water slip containing Ca2P2O7 and Ca(Н2PO4)2 into a plastic mold fabricated via FDM 3Dprinting,was proposed.Chemical reaction between the solid phases of the water containing slip-Ca2P2O7 and Ca(Н2PO4)2,resulting in brushite(CaHPO4·2H2O)formation,led to consolidation of the casting and preserved its complex architecture in the course of mold burning-out.Macroporous ceramics of Kelvin structure(70%macropores with the sizes from 2 up to 4 mm),based on a pre-defined composition with 10 wt%Ca(PO3)2 and sintered in liquid-phase regime,demonstrated a compressive strength of 1.4±0.1 MPa at a density of 22±2%.In vitro tests on bioactivity in SBF solution,as well as on resorption of the ceramics in model solution of citric acid,were carried out. 展开更多
关键词 BIOCERAMICS Calcium pyrophosphate Calcium metaphosphate Colloidal forming 3D-printing Kelvin structure
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