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Measurement of the Sintering Pressure in Ceramic Films
Author(s) -
CHENG TSUNGNAN,
RAJ RISHI
Publication year - 1988
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.1151-2916.1988.tb05860.x
Subject(s) - sintering , materials science , ceramic , isothermal process , composite material , ultimate tensile strength , stress (linguistics) , tape casting , metallurgy , thermodynamics , linguistics , philosophy , physics
An experimental technique is described to estimate the intrinsic sintering pressure in ceramic films. It involves measuring the time‐dependent axial strain of the film during isothermal sintering under a varying tensile load. The applied stress when the axial strain rate goes to zero gives the measurement of the sintering pressure. Such experiments with titania tapes fabricated by tape casting showed the intrinsic sintering pressure to lie in the range of 200 to 130 kPa for densities in the range of 85% to 95% of the theoretical density. The sintering pressure decreased with increasing density. These results are in agreement with measurements of sintering pressure in alumina and titania obtained from sinter‐forging experiments.