caa a22 4500 463231716 CHVBK 20180405153244.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-007-1995-x doi (NATIONALLICENCE)springer-10.1007/s10853-007-1995-x Structure and crystallization behavior of borate-based bioactive glass [Elektronische Daten] [Aihua Yao, Mohamed Rahaman, Jian Lin, Wenhai Huang] The structure and crystallization behavior of borate-based bioactive glass, designated 45S5B1, were investigated by Fourier transform infrared (FTIR) spectroscopy, differential thermal analysis (DTA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). FTIR spectroscopy revealed that the network structure of the glass consisted mainly of [BO3], [BO4] and [PO4] units. Two distinct crystallization peaks were observed for this glass by DTA, with activation energies of 475 and 210kJ/mol, respectively. XRD indicated that the crystallization process with higher activation was associated with the formation of CaNa3B5O10, whereas the process with the lower activation energy was associated with the formation of CaB2O4. The results indicated that the crystallization process in 45S5B1 glass was dominated by bulk crystallization, although surface crystallization also occurred for small particle sizes (<50μm). Springer Science+Business Media, LLC, 2007 Yao Aihua School of Materials Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P.R. China aut Rahaman Mohamed Department of Materials Science and Engineering, University of Missouri, 65409, Rolla, MO, USA aut Lin Jian School of Materials Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P.R. China aut Huang Wenhai School of Materials Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P.R. China aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/23(2007-12-01), 9730-9735 0022-2461 42:23<9730 2007 42 10853 https://doi.org/10.1007/s10853-007-1995-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1995-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yao Aihua School of Materials Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Rahaman Mohamed Department of Materials Science and Engineering, University of Missouri, 65409, Rolla, MO, USA aut NATIONALLICENCE 700 1- Lin Jian School of Materials Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P.R. China aut NATIONALLICENCE 700 1- Huang Wenhai School of Materials Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P.R. China aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/23(2007-12-01), 9730-9735 0022-2461 42:23<9730 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer