The paper examines the production of Si-modified biogenic hydroxyapatite ceramics. The introduction of methylsilicic acid hydrogel in amounts converted to 2 and 5 wt.% Si and subsequent sintering at 600°C increase the specific surface area by 10 times, from 6.1 to 59.8 m2/g. The porosity of ceramics increases from 43.0 to 62.3% when the modifying addition reaches up to 5 wt.%, the compressive strength being equal to 27–33 MPa. The modifying addition also influences the structure and reduces the minimum grain size of the material from 0.65 to 0.1μm
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Translated from Poroshkovaya Metallurgiya, Vol. 54, Nos. 1–2 (501), pp. 83–90, 2015.
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Sych, E.E., Pinchuk, N.D., Klimenko, V.P. et al. Synthesis and Properties of Si-Modified Biogenic Hydroxyapatite Ceramics. Powder Metall Met Ceram 54, 67–73 (2015). https://doi.org/10.1007/s11106-015-9681-z
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DOI: https://doi.org/10.1007/s11106-015-9681-z