A novel ceramic material with medical application

Abstract

Until now the basic methods used in manufacturing of wollastonite have been chemical (melting together with glass crystallization process, chemical coprecipitation) and sol – gel methods. A new and promising way of wollastonite fabrication is controlled pyrolysis of polysiloxane precursors with inorganic fillers. Heat treatment of such mixtures leads to the formation of wollastonite-containing ceramics already at about 1000°C. This is a relatively inexpensive and efficient method which enables to obtain complex shapes of the samples.The aim of this work was to obtain sintered, wollastonite-containing bioceramics and determine its bioactive features. Samples were sintered at three different temperatures: 1000, 1100 and 1200°C. Then the bioactivity of the wollastonite-containing ceramics was investigated by the “in vitro” test in simulated body fluid. On the basis of the achieved results, it can be assumed that the obtained material possesses bioactive features.

Keywords

• Bioceramics
• Wollastonite
• Polymeric precursors
• Active fillers