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J. Korean Ceram. Soc. > Volume 39(3); 2002 > Article
Journal of the Korean Ceramic Society 2002;39(3): 265.
doi: https://doi.org/10.4191/kcers.2002.39.3.265
라만과 적외선 분광기를 이용한 P2O5-Na2O-MgO 유리의 이상성에 관한 연구
이병철, 권용준, 류봉기
부산대학교 무기재료공학과
Abnormality of P2O5-Na2O-MgO Glasses by Raman and Infrared Spectroscopy
Byung-Chul Lee, Young-Jun Kwon, Bong-Ki Ryu
Department of Inorganic Materials Engineering, Pusan National University
Density, water resistance, Raman and infrared spectroscopy were used to investigate the change of structural characteristics with the composition of phosphate galss samples made by melting method. The structural abnormality of the density and water resistance were rapidly increased and shown near the 60mol% of $P_2O_5$. This result could be explained by the structural changes owing to the strong shrinkage of glass network by the coordination of DBO(Double-Bonded Oxygen) around $Mg^{2+}$ cations. In addition, it seems that the DBOs coordinating $Mg^{2+}$ cations lose its characteristics of double bonding and resonate with other NBOs(Non-Bonding Oxygen).
Key words: Phosphate glasses, Raman and infrared spectroscopy, Resonation
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