Premium
Self‐Constrained Sintering of a Multilayer Low‐Temperature‐Cofired Glass–Ceramics/Alumina Laminate
Author(s) -
Liao ChienHong,
Jean JauHo,
Hung YaoYi
Publication year - 2008
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.1551-2916.2007.02157.x
Subject(s) - materials science , shrinkage , composite material , cofiring , sintering , ceramic , porosity , layer (electronics) , atmospheric temperature range , tape casting , alumina ceramic , tile , capillary action , chemistry , physics , organic chemistry , meteorology , combustion
A self‐constrained low‐temperature‐cofired ceramic system with a multilayer structure of a low‐temperature cofirable CaO–B 2 O 3 –SiO 2 glass (CBSG) tape and a pure alumina tape has been developed. Because the densification temperature range required for the CBSG layer is much lower than that needed for pure alumina, its lateral shrinkage is inhibited by the presence of a nondensified alumina layer during cofiring. Porosity in the alumina layer is later filled by the capillary infiltration of free glass in the densified CBSG. This leads the linear shrinkage of the multilayer CBSG/alumina laminate to take place only in the Z direction with little shrinkage in the X – Y directions, which exhibits unique characteristics of self‐constrained densification.