$BaO-B_2O_3$계 유리의 상분리 현상과 유리의 구조 채수철, 김철영 인하대학교 무기재료공학과 Phase Separation and their Structures in $BaO-B_2O_3$ Glasses ABSTRACT Phase spearated glass is heterogeneous in microscopic point of view and the heterogeneities affect the structures of glasses. In the present work the phase separation of $BaO-B_2O_3$ glass system was investigated and the effect of $P_2O_5$ on the phase separation and crystallization was also studied in the above system. Experiments such as scanning electron microscopy X-ray diffraction and infrared spectroscopy were performed. Phase separation with $B_2O_3$ rich phase matrix and BaO rich phase droplet was observed for the glasses containing less than 6 mole% of BaO while the opposite morphology of phase separation was found for the glasses containing more than 7 mole% of BaO. Phase separation region was extended up to the glass with 22mole% of BaO when the amount of $P_2O_5$ was increased. The heat-treated glasses crystallized to BaO.$4B_2O_3$$P_2O_5 hindered the glass from the crystalli-zation. TOOLS PDF Links Full text via DOI Download Citation CrossRef TDM E-Mail Share: METRICS  586 View  1 Download  Related articles Formation of Core-Shell Structure in BaTiO3 Grains 2009 ;46(2) Phase Formation and Protoniz Conduction of La(Ba)ScO_3 Perovskites 2001 ;38(11) Phase Transformation and Dielectric Relaxation in Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3 Relaxor Ferroelectrics 2001 ;38(10) Preparation and Electrical Properties of YMnO_3Thin Film by MOCVD Method 2001 ;38(5) Phase Separation in Nd_2$$O_3$-${Al_2}{O_3}-{SiO_2}-{TiO_2}$Glass  2000 ;37(12)