Fabrication and Magnetic Properties of P₂O₅-CaO-Na₂O Bioactive Glass Ceramic Containing BaFe₁₂O₁₉

Abstract

The fabrication of bioactive glass ceramics containing BaFe₁₂O₁₉ (BF) crystals has been carried out for the application in hyperthermia treatment. The BaFe₁₂O₁₉ powder was firstly prepared and subsequently mixed with the non-silicate P₂O₅-CaO-Na₂O bioactive glass with various BF concentrations. After that, the glass ceramics were produced via a sintering method at 600°C and their crystal phases were examined by XRD and in vitro test was carried out by soaking in simulated body fluid. Remanence and saturation magnetization and coercivity were deduced from magnetic measurement. It was found that the samples exhibited magnetic behavior which is similar to hard magnetic materials.

Keywords:

• Ferrimagnetic
• hyperthermia treatment
• non-silicate bioglasses
• sintering
• glass-ceramic method

Acknowledgments

The authors would like to thank the Thailand Research Fund (TRF), National Metal and Materials Technology Center (MTEC), the National Research University (NRU) and Faculty of Science, Chiang Mai University, Thailand for financial support. P. Intawin would like to express her thanks to financial support from the Graduate School, Chiang Mai University.