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Generation of Cracklike Voids during Sintering of Al 2 O 3 ‐10ZrO 2 Ceramics and Their Prevention by Presintering with Low Pressure (2 MPa)
Author(s) -
Oh KyungSik,
Kim DohYeon,
Cho SeongJai
Publication year - 1996
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.1151-2916.1996.tb08795.x
Subject(s) - sintering , materials science , agglomerate , ceramic , high pressure , composite material , metallurgy , thermodynamics , physics
During sintering of Al 2 O 3 ‐10ZrO 2 ceramics, cracklike voids were formed due to the differential in densification between agglomerates and the matrix. The small external pressure (2 MPa) applied during presintering at 1200°C prevented the formation of these cracklike voids. The results are explained in relation to the microstructural development during the initial stage of sintering.