caa a22 4500 475782984 CHVBK 20180406123650.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1023/A:1008913909247 doi (NATIONALLICENCE)springer-10.1023/A:1008913909247 Effect of iron state on crystallization and dissolution in Fe2O3-CaO-SiO2 glasses [Elektronische Daten] [Yong-Keun Lee, KyOung-Nam Kim, SE-Young Choi, chul-sung kim] The possibility of iron-containing glasses as thermoseeds for hyperthermia of bone tumor was reported previously. There is, however, no report about the effect of iron state on the crystallization of magnetite and the resultant properties. The iron states were determined by Mo¨ssbauer spectroscopy in Fe2O3-CaO-SiO2 system. It was found that the higher CaO content interrupts the crystallization of magnetite crystallites as well as the oxidation of iron, that is, the transformation from Fe3+ to Fe2+. A sample containing large amounts of Fe2+ showed the faster increment of temperature when the alternating magnetic field was applied. In order to use the thermoseed for a hyperthermia, we can say that the composition with low CaO content is most useful. Kluwer Academic Publishers, 2000 Lee Yong-Keun Research Institute of Dental Materials, Yonsei University College of Dentistry, 120-752, Seoul, Korea aut Kim KyOung-Nam Research Institute of Dental Materials, Yonsei University College of Dentistry, 120-752, Seoul, Korea aut Choi SE-Young Department of Ceramic Engineering, Yonsei University, 120-749, Seoul, Korea aut kim chul-sung Department of Physics, Kookmin University, 136-702, Seoul, Korea aut Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/8(2000-08-01), 511-515 0957-4530 11:8<511 2000 11 10856 https://doi.org/10.1023/A:1008913909247 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008913909247 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Yong-Keun Research Institute of Dental Materials, Yonsei University College of Dentistry, 120-752, Seoul, Korea aut NATIONALLICENCE 700 1- Kim KyOung-Nam Research Institute of Dental Materials, Yonsei University College of Dentistry, 120-752, Seoul, Korea aut NATIONALLICENCE 700 1- Choi SE-Young Department of Ceramic Engineering, Yonsei University, 120-749, Seoul, Korea aut NATIONALLICENCE 700 1- kim chul-sung Department of Physics, Kookmin University, 136-702, Seoul, Korea aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/8(2000-08-01), 511-515 0957-4530 11:8<511 2000 11 10856 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer