Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Dissolution and Structure Analysis of Phosphate Water Soluble glasses

인산염계 수용성 유리의 용출 및 구조 분석

  • Yoon, Young-Jin (Department New Material Science and Engineering, Dankook UniversityDepartment 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)
  • 윤영진 (단국대학교 신소재공학과) ;
  • 윤태민 (단국대학교 신소재공학과) ;
  • 이용수 (단국대학교 신소재공학과) ;
  • 강원호 (단국대학교 신소재공학과)
  • Published : 2002.07.01
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Abstract

Potassium-Calcium-Phosphate glasses in range $XCaO\cdot(50-X)K_2O$ \cdot $50P_2$$O^{5}$were investigated. Glass transition temperature(Tg) of prepared glasses were below $520^{\circ}C$, thermal expansion coefficient from $270.3$\times$10^{7}$ to $604.5$\times$10^{7}$/$^{\circ}C$. The structure of XCaO.(50-X)$K_2$O\cdot$50P_2$$O^{5}$ glasses were examined by FT-IR spectroscopy indirectly. As CaO was increased, Ts, Tg, P-O-P bonding strength and chemical durability were increased. Glass surface change was observed with increasing dissolution time using bulk specimen, weight loss and pH change were measured as function of the dissolution time.

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