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Mechanical properties of the Ni filler metal layer in Si 3 N 4 joints measured by nanoindentation
Author(s) -
Miranzo P.,
Osendi M. I.,
Vergara I.
Publication year - 2004
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.1912
Subject(s) - nanoindentation , materials science , layer (electronics) , filler (materials) , composite material , metal , metallurgy
Nanoindentation experiments were done on Si 3 N 4 /Ni/Si 3 N 4 specimens bonded at different temperatures. Tests were carried out in both the ceramic adherent and the metal filler. Results from nanoindentation experiments done across the interlayer verify that a solution of Si atoms in the Ni interlayer did not modify the mechanical properties of the metal (elastic modulus and hardness). The increase in bonding temperature produced an increase in hardness in the metal interlayer but did not affect its elastic modulus. This hardening of the Ni interlayer was related to the decrease in the shear strength of these joints. Copyright © 2004 John Wiley & Sons, Ltd.