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Electron Microscopy Study of Tin Whisker Growth

Journal Article · · Journal of Materials Research
OSTI ID:15005604
The growth of tin whiskers formed on sputtered tin layers deposited on brass was studied using electron microscopy. The occurrence of whiskers appeared to be largely independent of the macroscopic stress state in the film; rather it was microscopic compressive stresses arising from the formation of an intermetallic phase that appeared to be the necessary precursor. Whisker morphology was a result of whether nucleation had occurred on single grains or on multiple grains. In the latter case, the whiskers had a fluted or striated surface. The formation of whiskers on electron transparent samples was demonstrated. These samples showed the whiskers were monocrystalline and defect free, and that the growth direction could be determined.
Research Organization:
Pacific Northwest National Lab., Richland, WA (US), Environmental Molecular Sciences Lab. (US)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
15005604
Journal Information:
Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 3 Vol. 18
Country of Publication:
United States
Language:
English

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