Biological and Mechanical Properties of Nanohydroxyapatite‐Containing Carbon/Carbon Composites
Abstract:This paper deals with carbon/carbon composites modified with a ceramic component designed for bone tissue repairing. The composites were manufactured from pitch precursors modified with a hydroxyapatite (HAp) nanopowder. Carbon fibers were used as a reinforcement. The flexural strength and modulus of the composites before and after modification with HAp were examined. Biological properties of the composites were examined in in vitro tests. Apatite formation on ceramic nanoparticle‐modified carbon composite surface was observed. Mechanical tests showed that nanohydroxyapatite‐modified composite samples have good mechanical properties and perform an improved bioactivity in simulated body fluid in comparison with the pure carbon samples.
Document Type: Research Article
Affiliations: 1: Department of Biomaterials, Faculty of Materials Engineering and Ceramics, St. Staszic AGH University of Science and Technology, Krakow, Poland 2: The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Division of Scientific Equipment and Infrastructure Construction (DAI), Krakow, Poland
Publication date: May 1, 2012