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Stress Development during Constrained Sintering of Alumina/Glass/Alumina Sandwich Structure
Author(s) -
Tzeng ShinYu,
Jean JauHo
Publication year - 2002
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.1151-2916.2002.tb00093.x
Subject(s) - materials science , sintering , composite material , stress (linguistics) , shrinkage , ultimate tensile strength , enhanced data rates for gsm evolution , shear (geology) , shear stress , telecommunications , philosophy , linguistics , computer science
Stress development during the constrained sintering of a sandwich structure of alumina/glass/alumina has been studied. Stress distribution in the glass layer was calculated using a finite element method. The shear stress exhibited a maximum at the edge of the alumina/glass interface. The in‐plane tensile stress, formed during constrained sintering, decreased from the interface of the alumina/glass to the middle of the glass in the z ‐direction, but increased from the edge to the center of glass in the x − y direction. This in‐plane tensile stress reduces the driving force of densification, resulting in a larger x − y shrinkage and higher densification in the middle of the glass.