Evolution of Discontinuity in Particle Orientation in Ceramic Tape Casting
Evolution of Discontinuity in Particle Orientation in Ceramic Tape Casting
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DOI：
10.1111/j.1551-2916.2008.02605.x
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发表时间：
2008-10
影响因子：
3.9
通讯作者：
Napat Chantaramee;S. Tanaka;Tsutomu Takahashi;K. Uematsu
中科院分区：
文献类型：
--
作者：
Napat Chantaramee;S. Tanaka;Tsutomu Takahashi;K. Uematsu
Flow-induced particle orientation has been studied using aqueous slurry containing slightly anisometric particles (α-Al 2 O 3 ). A detailed description of particle alignment in green tape was quantified with a cross-polarized light microscope. Correlations among the exerted pressure in terms of H slurry /L, dimensionless flow profile, and particle packing structure were presented. Pressure-driven flow with a large H slurry /L value was found to promote a nonuniform particle packing structure (Type-I) observed through the tape thickness, while shear-driven flow was found to induce a relatively uniform packing structure, as the long axes of particles were mainly aligned in the casting direction (Type-II).
