Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effect of Solvent Mixture Ratio on Rheology Property of Slurry and Thickness Control of Ceramic Green Sheets

유기 용매 혼합비에 따른 슬러리의 유동 특성과 세라믹 그린 쉬트의 두께 제어

  • 김준영 (전자부품연구원 전자소재패키지연구센터) ;
  • 김승택 (전자부품연구원 전자소재패키지연구센터) ;
  • 박종철 (전자부품연구원 전자소재패키지연구센터) ;
  • 유명재 (전자부품연구원 전자소재패키지연구센터)
  • Published : 2008.03.01
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Abstract

The effect of organic solvent mixture ratio on the rheology property of slurry and thickness control of ceramic green sheet was investigated. For selecting a suitable dispersant multiple light scattering method was used to evaluate the particle migration velocity and variation of clarification layer thickness. Using the selected dispersant the dispersion property of solution according to solvent mixture ratio was investigated. Binder and plasticizers were added to formulate slurries and their viscosity was evaluated according to solvent mixture ratio. Ceramic green sheets with average thickness of 30, 50 urn were fabricated via tape casting and their thickness tolerances measured. As a result according to solvent mixture ratio the solution and slurry properties varied and for the mixture ratio of ethanol/toluene of 80/20 the ceramic green sheet with the lowest thickness tolerance was obtained.

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References

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