Viscosity of Non-aqueous and Aqueous Alumina Slurry for Tape Casting

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  • テープ成形に用いる水系及び非水系アルミナスラリーの粘性
  • テープ セイケイ ニ モチイル スイケイ オヨビ ヒスイケイ アルミナ スラリ

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Abstract

This paper reports shear rate dependence of the viscosity and relative viscosity of highly concentrated non-aqueous and aqueous slurries used for tape casting of the alumina sheet by a doctor blade method.The non-aqueous and aqueous slurries containing 28-35 vol% and 24-29 vol%alumina, respectively, were prepared by ball milling for this work.Approximate equations, derived from the Dougherty-Krieger-equation, logηr,=αφand logηr=αφ+(α/2φm)φ2, are both fitted to the data measured quite well.

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