The effect of nanospike structures on direct bonding strength properties between aluminum and carbon fiber reinforced thermoplastics

Hikaru Abe, Joon Cheol Chung, Takaaki Mori, Atsushi Hosoi*, Kristine Munk Jespersen, Hiroyuki Kawada

*この研究の対応する著者

研究成果: Article査読

13 被引用数 (Scopus)

抄録

With recent design developments in the automotive industry, it has become necessary to join dissimilar materials such as aluminum and carbon fiber reinforced thermoplastics (CFRTPs). In this study, a nanospike structure is fabricated on the surfaces of aluminum plates and directly bonded to CFRTP laminates. The effect of the nanospike structure on the adhesion strength is evaluated by single-lap joint tests. It is found that the nanospike structure improves the adhesion strength. Furthermore, combining the nanospike structure with a silane coupling treatment results in failure in the aluminum part of the single-lap specimens with an overlap length of 12.5 mm, rather than in the joined region. The average adhesion strength of the single lap joint specimens with an overlap length of 5.0 mm is found to be 24.9 MPa. Scanning electron microscopy observations of the fracture surfaces of the joined region only showed cohesive failure. On the fracture surface of the CFRTP laminate, the matrix exhibits a hairy structure due to the presence of the nanospike structure in some regions and in other regions carbon fibers are exposed due to adherend failure. Thus, in addition to an improved joint strength, the results suggest that the nanostructure will also improve the fracture toughness by causing ductile failure of the matrix.

本文言語English
ページ(範囲)26-32
ページ数7
ジャーナルComposites Part B: Engineering
172
DOI
出版ステータスPublished - 2019 9 1

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料力学
  • 機械工学
  • 産業および生産工学

フィンガープリント

「The effect of nanospike structures on direct bonding strength properties between aluminum and carbon fiber reinforced thermoplastics」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル