한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제39권2호
  • /
  • Pages.194-198
  • /
  • 2002
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지
DOI QR코드

DOI QR Code

K2O·CaO·P2O5계 유리의 열적특성과 구조분석

A Study of Structure and Thermal Properties of K2O·CaO·P2O5 Glasses

  • 윤영진 (단국대학교 신소재공학과) ;
  • 윤태민 (단국대학교 신소재공학과) ;
  • 이용수 (단국대학교 신소재공학과) ;
  • 강원호 (단국대학교 신소재공학과)
  • Yoon, Young-Jin (Department New Material Science and Engineering, Dankook University) ;
  • Yoon, Tae-Min (Department New Material Science and Engineering, Dankook University) ;
  • Lee, Yong-Soo (Department New Material Science and Engineering, Dankook University) ;
  • Kang, Won-Ho (Department New Material Science and Engineering, Dankook University)
  • 발행 : 2002.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

$K_2O{\cdot}CaO{\cdot}P_2O_5$를 기본조성으로 하여 용융법에 의해 유리 형성범위를 정의하고자 하였다. TG-DTA와 DSC를 이용하여 열적 특성을 관찰하고자 하였으며, FT-IR과 Raman Spectroscopy를 이용하여 구조를 분석하였다. $K_2O{\cdot}CaO{\cdot}P_2O_5$의 함량이 증가함에 따라 유리전이온도 및 연화온도는 감소하였다. $K_2O{\cdot}CaO{\cdot}P_2O_5$ 유리의 기본 구조는 이웃한 구조와 상호 결합을 위한 $PO_2$와 $PO_4^{3-}$ 구조와 유리의 골격구조를 이루는 P-O-P 결합이며, CaO의 함량이 증가함에 따라, 유리내의 P-O-P의 결합력은 점차적으로 증가하였으며, $PO_2$와 $PO_4^{3-}$의 intensity는 점차적으로 감소하였다.

Various composition of $K_2O{\cdot}CaO{\cdot}P_2O_5$ glasses were studied by melting process to identify glass forming region. Thermal properties were observed by DSC and TG-DTA, structural properties were investigated by FT-IR and Raman Spectroscopy. The glass transition temperature (Tg) and softening temperature (Ts) were decreased with increasing $K_2O\;and\;P_2O_5$ contents. The basic structural unit of phosphate glasses is the $PO_2\;and\;PO_4^{3-}$ groups to make a cross-link and P-O-P group to form skeleton structure. As CaO content was increased, the P-O-P field strength in these glass was increased and intensity of $PO_2\;and\;PO_4^{3-}$ stretch was decreased.

키워드

참고문헌

  1. J. J. Liang, R. T. Cygan and T. M. Alam, 'Molecular Dynamics Simulation of the Structure and Properties of Lithium Phosphate Glasses,' J. Non-cryst., 263,167-179 (2000) https://doi.org/10.1016/S0022-3093(99)00632-8
  2. Y. M. Moustafa and K. E. Egili, 'Infrared Spectra of Sodium Phosphate Glasses,' J. Non-cryst., 240, 144-153 (1998) https://doi.org/10.1016/S0022-3093(98)00711-X
  3. K. H. Im, J. M. Hwang and C. Y. Kim, 'A Study on the 4Preparation and Properties of Hydroxyapatite Bioceramics,' J. Kor. Ceram. Soc., 26(2), 171-178 (1989)
  4. J. H. Lee, J. Woong and C. Y. Kim, 'Apatite Formation Behavior on Bioactive Glasses with Glass Composition and Reaction Solution,' J. Kor. Ceram. Soc., 37(1I), 1I05-1I13 (2000)
  5. M. Uo, M. Mizuno, Y. Kuboki, A. Makishima and F. Watari, 'Properties and Cytotoxicity of Water Soluble Na$_{2}$O-CaOP$_{2}$O$_{5}$ Glasses,' Biomat., 19, 2277-2284 (1998) https://doi.org/10.1016/S0142-9612(98)00136-7
  6. A. E. R. Westman and J. Crowther, 'Constitution of Soluble Phosphate Glasses,' J. Am. Ceram. Soc., 37(9), 420-427 (1954) https://doi.org/10.1111/j.1151-2916.1954.tb14061.x
  7. C. Drake and W. Allen, 'The Use of Controlled-release Glass for the Controlled Delivery of Bioactive Materials,' Biochem. Soc. Trans., 13, 516-520 (1985) https://doi.org/10.1042/bst0130516
  8. P. Knott, 'Glasses-agricultural Applications,' Glasstech., 62, 29-34 (1989)
  9. J. H. Joe, Y. Lee, S. Y. Choi, C. S. Shin and K. N. Kim, 'Preparation and Characterization of Water-soluble Glass through Melting Process (1),' J. Kor. Ceram. Soc., 32(10), 1093-1102 (1995)
  10. S. Bhaskar, J. Brady, L. Getter, M. Grower and T. Driskell, 'Biodegradable Ceramic Impkants in Bone,' Oral Surg., 32, 336-346 (1971) https://doi.org/10.1016/0030-4220(71)90238-6
  11. A. Demirbas, Y. Abalt and E. Mert, 'Recovery of Phosphate from Calcinated Bone by Dissolution in Hydrochloric Acid Solutions,' Res. Conservation & Recycling, 26, 251-258 (1999) https://doi.org/10.1016/S0921-3449(99)00021-X
  12. U. Hoppe, G. Walter, R. Krano1d and D. Stachel 'Structural Specifics of Phosphate Glasses Probed by Diffraction Methods: A Review,' J. Non-cryst., 263, 29-47 (2000) https://doi.org/10.1016/S0022-3093(99)00621-3
  13. P. Y. Shin, S. W. Yung and T. S. Chin, 'Thermal and Corrosion Behavior of P$_{2}$O$_{5}$-Na$_{2}$O-CuO Glasses,' J. Non-cryst., 224, 143-152 (1998) https://doi.org/10.1016/S0022-3093(97)00460-2
  14. G. D. Khattak, M. A. Salim and M. S. Hussain, 'X-ray Photoelectron Spectro scopy, Fourier Transform Infrared Spectroscopy and Electrical Conductivity Studies of Copper Phosphate Glasses,' 185, 101-108 (1995)
  15. J. M. Koo, B. S. Bae and H. K. Na, 'Raman Spectroscopy of Copper Phosphate Glasses,' J. Non-cryst., 212, 173-179 (1997) https://doi.org/10.1016/S0022-3093(96)00651-5