Composites Produced from Hydroxyapatite Glass Ceramics and Carbon Nanostructured Fibers: Preparation, Phase Composition, and Structure

• Published in: Powder metallurgy and metal ceramics Vol. 61; no. 5-6; pp. 308 - 315
• Main Authors: Parkhomey, O.R., Klipov, V.D., Pinchuk, N.D., Tomila, T.V., Bykov, O.I., Sych, O.E., Kuzmenko, L.M., Budilina, O.M.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2022; Springer; Springer Nature B.V
• Subjects: Activated carbon; Biocompatibility; Biomedical materials; Borosilicate glass; Calcium phosphate; Calcium phosphates; Carbon fibers; Cellulose; Cellulose fibers; Ceramic materials; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composite Materials; Composites; Crystals; Drug delivery systems; Fiber composites; Glass; Glass ceramics; Heat treatment; Hydroxyapatite; Infrared spectroscopy; Materials Science; Metallic Materials; Microstructure; Morphology; Nanostructure; Natural Materials; Phase composition; Phosphate glass; Powders; Pyrolysis; Sintering; Sintering (powder metallurgy); Sodium; Spectrum analysis; Structure; X-ray diffraction; hydroxyapatite; carbon fiber; glass; composite material; nanostructured fibers; composite
• ISSN: 1068-1302; 1573-9066
• DOI: 10.1007/s11106-022-00318-5

The phase composition and structure of biogenic hydroxyapatite/glass/carbon fiber composites were studied in the light of their potential medical applications. Calcium phosphate glass ceramics produced from biogenic hydroxyapatite and activated nanostructured carbon fibers were used as the starting materials. The starting glass ceramic, which is a bioactive material and can be used to replace defective parts of bone tissue, was prepared by sintering powder mixtures of biogenic hydroxyapatite and sodium borosilicate glass. The starting activated nanostructured carbon fiber material, which can be used as a drug delivery system due to its structure, surface morphology, and internal pore structure, was produced by controlled incremental pyrolysis of cellulose hydrate fibers. To prepare the composites, the activated nanostructured carbon fiber material was impregnated with glass-ceramic slurry, dried at up to 40°C, and incrementally heat-treated at 800°C. The phase composition of the prepared materials was monitored by X-ray diffraction (XRD) and IR spectroscopy. The structure was examined by scanning electron microscopy. According to XRD and IR spectroscopy, the prepared biogenic hydroxyapatite/glass/carbon fiber composite contained only the crystalline hydroxyapatite phase and amorphous sodium borosilicate glass and carbon nanostructures. The study of the microstructure and fracture morphology of the composites revealed a porous amorphous–crystalline microstructure with a complex specific relief, carbon fibers, and a developed micro- and macropore system. The biogenic hydroxyapatite/glass/carbon fiber composites retain the phase composition and nanostructure of the starting materials and are promising for medical applications.