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Surface modifications of alumina–silica glass fiber
Author(s) -
Andrade A.L.,
Ferreira J.M.F.,
Domingues R.Z.
Publication year - 2004
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.30062
Subject(s) - materials science , coating , fourier transform infrared spectroscopy , simulated body fluid , immersion (mathematics) , layer (electronics) , composite material , fiber , chemical engineering , substrate (aquarium) , scanning electron microscope , oceanography , mathematics , pure mathematics , engineering , geology
A commercial glass fiber with Al 2 O 3 (68.4%) and SiO 2 (27.6%) as major components and CaO, TiO 2 , Fe 2 O 3 , and CuO as minor components was used as substrate in a silica sol–gel coating process. After cleaning, fiber samples were immersed into tetraethoxysilane (TEOS) at room temperature for 1 h, and then individual fiber samples were soaked into a simulated body fluid (SBF) solution,1 and removed after 5, 10, 15, and 20 days. Zeta potential and Energy Dispersive Spectroscopy (EDS) analyses showed that the fiber surfaces were effectively coated with a silica layer, which improved the formation of an HA layer upon immersion into SBF solution for 5 days. The coating became even more continuous after 10‐day immersion. Fourier Transform Infrared Spectroscopic (FTIR) analyses confirmed that the coating layer has PO vibration bands characteristic of hydroxyapatite (HA) near 1060 and 600 cm −1 . © 2004 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 70B: 378–383, 2004