Structural design and bonding strength evaluation of Al/epoxy resin joint via interpenetrating phase layer

[Display omitted] The effect of the volume fraction of resin (Vr) on the bonding strength of Al/epoxy resin joints via interpenetrating phase layer (IPL) was investigated. The tensile strength reached maximum to be 38.3 MPa when Vr was 85%. Fracture occurred at either epoxy resin/IPL interface or Al...

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Bibliographic Details
Published in:Journal of materials processing technology 2018-12, Vol.262, p.11-18
Main Authors: Suzuki, Asuka, Arai, Yuta, Takata, Naoki, Kobashi, Makoto
Format: Article
Language:English
Subjects:
Aluminum
Anchor bonding
Bonded joints
Bonding strength
Epoxy resin
Epoxy resins
Evaluation
Functionally graded materials
Functionally gradient materials
Interpenetrating phase layer
Materials science
Porous metals
Separation
Structural design
Tensile strength
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Summary:[Display omitted] The effect of the volume fraction of resin (Vr) on the bonding strength of Al/epoxy resin joints via interpenetrating phase layer (IPL) was investigated. The tensile strength reached maximum to be 38.3 MPa when Vr was 85%. Fracture occurred at either epoxy resin/IPL interface or Al/IPL interface depending on Vr (Vr≦85%; epoxy resin/IPL interface, Vr≧85%; Al/IPL interface). Fractography revealed that the separation and the fracture of the epoxy resin occurred on the epoxy resin/IPL interface, and the separation and the fracture of Al occurred on the Al/IPL interface. These results can be explained by the strength of each interface estimated from rule of mixture. The effect of grading Vr on the bonding strength was also investigated. The tensile strength of joint with the functionally graded IPL structure was higher than that of joints with the homogenous IPL structures.
ISSN:0924-0136
1873-4774
DOI:10.1016/j.jmatprotec.2018.06.010