FIELD: medicine.
SUBSTANCE: invention refers to medicine, particularly bioceramic materials intended for making bone implants and/or defect replacement in various bone pathologies. Mixture of powders β-TCF and 2–6 wt. % lithium carbonate is calcined at 400–700 °C, ground and mixed with photopolymer. Samples are printed using 3D printer by stereolithography under ultraviolet radiation. Ceramic sample shape, porosity and pore size are set at the sample printing stage. Printed sample is annealed step-by-step with intermediate exposures. Due to use of lithium carbonate additive - samples are sintered at low temperature of 850–900 °C and have a fine crystal structure of 0.8–1.0 mcm.
EFFECT: technical result of the invention is obtaining ceramic samples based on β-tricalium phosphate with total porosity of up to 80 %, pore size of 300–800 mcm with low sintering temperature.
1 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING POROUS CERAMICS BASED ON TRICALCIUM PHOSPHATE BASED ON FABRICATED THREE-DIMENSIONAL MODELS BY LAYER-BY-LAYER DEPOSITION USING PHOTOPOLYMERIZATION | 2022 |
|
RU2784938C1 |
| METHOD OF PRODUCING COMPOSITE 3D FRAME FOR REPLACEMENT OF BONE-CARTILAGE DEFECTS | 2015 |
|
RU2606041C2 |
| HYDROGEL FOR PRODUCTION OF COMPOSITE MATERIALS WITH ANTIBACTERIAL ACTIVITY FOR OSTEOCHONDRAL DEFECTS SUBSTITUTION BY 3D-PRINTING METHOD | 2016 |
|
RU2632431C2 |
| LIQUID COMPOSITION FOR PRODUCING POROUS CERAMIC SAMPLES BASED ON CALCIUM PHOSPHATES FOR BONE ENGINEERING WITH 3D MOULDING AND/OR 3D PRINTING | 2013 |
|
RU2549638C1 |
| METHOD OF PRODUCING INDIVIDUAL COMPOSITE IMPLANT BASED ON SODIUM ALGINATE AND CALCIUM PHOSPHATES FOR REPLACEMENT OF OSTEOCHONDRAL DEFECTS BY THREE-DIMENSIONAL GEL PRINTING | 2019 |
|
RU2723217C1 |
| METHOD OF MANUFACTURING PRODUCTS FROM POWDER CERAMIC MATERIALS | 2017 |
|
RU2668107C1 |
| METHOD FOR MAKING MATRICES BASED ON LOW-TEMPERATURE MODIFICATIONS OF CALCIUM PHOSPHATES FOR BONE ENGINEERING | 2018 |
|
RU2700770C2 |
| METHOD OF OBTAINING POROUS CALCIUM PYROPHOSPHATE | 2012 |
|
RU2537615C2 |
| METHOD FOR 3D PRINTING OF PRODUCTS WITH AN ULTRASOUND-ACTIVATED JET OF POWDER MATERIAL PLASTICIZED WITH A THERMOPLASTIC BINDER | 2021 |
|
RU2777114C1 |
| NANOPATTERNED CALCIUM PHOSPHATE CERAMIC MATERIAL ON BASIS OF THREECALCIUMPHOSPHATE-HYDROXYAPATITE SYSTEM FOR RECONSTRUCTION OF OSTEAL DEFECTS | 2007 |
|
RU2359708C1 |
