Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Compaction and Sintering Behavior of $Al_2O_3$-modified Ziroconium Titanate $(ZrTiO_4)$

  • Chun, Myoung-Pyo (Advanced Materials & Components Team, Korea Institute of Ceramic Eng. & Tech.) ;
  • Geun, Hur (Advanced Materials & Components Team, Korea Institute of Ceramic Eng. & Tech.) ;
  • Myoung, Seung-Jae (Advanced Materials & Components Team, Korea Institute of Ceramic Eng. & Tech.) ;
  • Cho, Jung-Ho (Advanced Materials & Components Team, Korea Institute of Ceramic Eng. & Tech.) ;
  • Kim, Byung-Ik (Advanced Materials & Components Team, Korea Institute of Ceramic Eng. & Tech.)
  • Published : 2006.09.24
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Abstract

The compaction and sintering behavior of zirconium titanate $(ZrTiO_4)$ was investigated by means of the measurement of sintering density and shrinkage, and the observation of microstructure. With increasing the content of $Al_2O_3$ additive, $Al_2O_3$-modified zirconium titanate samples fired at $1300^{\circ}C$ showed the anisotropic shrinkage behavior that the upper region of sintered body has higher sintering shrinkage than the low region. This difference of sintering shrinkage decreased with increasing firing temperature from 1300 to $1400^{\circ}C$. The SEM micrographs of powder compation show that the anisotropic shrinkage behavior is related with non-uniform density in a uniaxial compaction.

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