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    Characteristics of Wollastonite Ceramic Coatings Obtained by Pulsed Laser Deposition

    Year: 2021

    Journal: J. Inorg. Organomet. Polym. Mater., Volume 31, APR, page 1601–1607

    Authors: Miu, Dana-Maria; Jinga, Sorin-Ion; Voicu, Georgeta; Iordache, Florin

    Organizations: Operational Programme Human Capital of the Ministry of European Funds [51668/09.07.2019, 124705]

    Keywords: Thin coating; Pulsed laser deposition (PLD); Wollastonite ceramic material; Bioactivity

    The paper aims at the synthesis and characterization of a wollastonite ceramic layer (belonging to the CaO-SiO2 system) deposited by PLD (pulsed laser deposition) method on a titanium metal substrate, in order to improve titanium biocompatibility and bioactivity. The silicate precursor mixture was synthesized by the sol-gel method. From this precursor was obtained the ceramic target by sintering at 1150 degrees C for 6 h. The obtained films on the titanium metal substrate were characterized by x-ray diffraction, scanning microscopy and by determination of the contact angle. Also, the materials were tested in vitro to determine the bioactivity and biocompatibility of thin films. The obtained results indicate the presence of wollastonite in films composition and a good bioactivity in the presence of cells, which suggests that this type of thin films is suitable for medical implants.
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