Evidence of 3D strain gradients associated with tin whisker growth

Research output: Contribution to journalArticle

Abstract

We have used Differential Aperture X-ray Microscopy (DAXM) to measure grain orientations and deviatoric elastic strains in 3D around a tin whisker. The results show strain gradients through the depth of the tin coating, revealing a higher strain deeper in the Sn layer. These higher strains are explained by the volume change occurring during growth of the intermetallic phase Cu6Sn5 at the interface between the Cu substrate and the Sn coating and at grain boundaries between Sn grains.

Details

Authors
Organisations
External organisations
  • European Synchrotron Radiation Facility
  • Ecole Nationale Supèrieure d'Arts et Mètiers (ENSAM), ParisTech
  • LGT Argouges
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Metallurgy and Metallic Materials
Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalScripta Materialia
Volume144
Issue numberFebruary 2018
StatePublished - 2018 Feb 1
Peer-reviewedYes