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Production of Si 3 N 4 /Glass Composites for LTCC Substrate by Aqueous Tape Casting Process
Author(s) -
Liu Shichao,
Ye Feng,
Hu Shengqing,
Liu Qiang,
Yang Haixia,
Zhang Biao
Publication year - 2015
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12438
Subject(s) - materials science , tape casting , composite material , slurry , porosity , dielectric , aqueous solution , shrinkage , substrate (aquarium) , green body , shear thinning , rheology , casting , sintering , chemistry , oceanography , optoelectronics , geology
In this work, Si 3 N 4 /glass sheets were prepared by aqueous tape casting, and the preparation process and properties of green and sintered tapes were discussed thoroughly. The effect of Si 3 N 4 content on the rheological behavior of the slurries was investigated, and the results showed that the viscosity of the slurry increased with the solid loading and all the slurries exhibited shear‐thinning behavior within the entire range of shear rate. Green tapes were fabricated successfully by aqueous tape casting which have excellent properties such as uniform pore distribution, low porosity, and high bulk density. The sintered samples exhibited low shrinkage, and low dielectric constant and loss.