Effect of $Al_{2}O_{3}$ filler addition on sintering behavior of low-firing $BaO-B_{2}O_{3}-ZnO$ glass ceramic system

  • Kim, Young-Nam (Department of Inorganic Materials Engineering Kyungpook National University) ;
  • Kim, Byung-Sook (Department of Inorganic Materials Engineering Kyungpook National University) ;
  • Lee, Joon-Hyung (Department of Inorganic Materials Engineering Kyungpook National University) ;
  • Kim, Jeong-Joo (Department of Inorganic Materials Engineering Kyungpook National University)
  • Published : 2003.07.09

Abstract

The sintering behavior of $BaO-B_{2}O_{3}-ZnO$, which is Pb-free glass-ceramic system, was examined as functions of the composition and the amount and particle size of $Al_{2}O_{3}$ filler. Different kinds of modifiers were added and $Al_{2}O_{3}$ fillers with different particle sizes ($1.5{\mu}m$ and $4.5{\mu}m$) were added. The glass frit-filler composites were sintered in the temperature range $520{\sim}580^{\circ}C$. X-ray diffraction results revealed that some of the composites crystallized during sintering. Dielectric constant and thermal expansion coefficient the glass-ceramics were analyzed.

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