Anisotropic alignment of nickel particles in a magnetic field for electronically conductive adhesives applications

Sancaktar E., Dilsiz N.

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, vol.11, no.2, pp.155-166, 1997 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11 Issue: 2
  • Publication Date: 1997
  • Doi Number: 10.1163/156856197x00273
  • Journal Name: JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.155-166
  • Keywords: anisotropic conductive adhesive, magnetic alignment, resin viscosity, electric conduction, nickel filaments, nickel fibers, nickel flakes, critical volume fraction, FILMS
  • Gazi University Affiliated: No

Abstract

Anisotropically conductive adhesives were developed by magnetic alignment of conductive nickel particles in a non-conductive epoxy matrix. Conductivity occurs in the direction of the magnetic field applied to the adhesive film. The effects of magnetic and conducting nickel filler type (i.e. powders, filaments, flakes, and fibers), resin viscosity, and the magnitude of aligning magnetic field on the electrical properties of the resulting anisotropic adhesive were investigated. The electrical resistance of the anisotropic adhesive was measured using the four-point probe method. The resistance of the filled adhesive decreased with increasing viscosity and the intensity of the magnetic field.