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The Effect of Anisotropic Shrinkage in Tape‐Cast Low‐Temperature Cofired Ceramics on Camber Development of Bilayer Laminates
Author(s) -
Chiang MengJu,
Jean JauHo,
Lin ShihChang
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04392.x
Subject(s) - materials science , shrinkage , composite material , ceramic , bilayer , anisotropy , sintering , tape casting , porosity , membrane , genetics , physics , quantum mechanics , biology
The effect of anisotropic shrinkage in a tape‐cast low‐temperature cofired ceramics (LTCC) on the camber development of bilayer laminate is investigated. The bilayer laminate cambers toward the direction with low‐powder‐packing density, which also exhibits a larger shrinkage rate. This result is in agreement with that predicted by using the viscous analogy for the constitutive relationships of a porous sintering compact. To produce thin, camber‐free substrates, laminates stacked by more than three‐layer tapes with alternating 90° rotation are needed.