Revealing the Pb Whisker Growth Mechanism from Al-Alloy Surface and Morphological Dependency on Material Stress and Growth Environment.

ABSTRACT: Spontaneous metallic Pb whisker formation from Pb and Bi containing Al-alloy's surfaces is a newly discovered phenomenon. The whiskers display unique formations, growth and morphology, which give the opportunity to be applied for specialized sensor and electronics applications. Within this work, the impact of environmental conditions (gas composition and moisture) is investigated and correlated with the modification of whisker evolution and growth dynamics. Furthermore, the residual stress state of the aluminum matrix using deep cryogenic treatment is modified and used to further increase whisker nucleation and growth by up to three- and seven-fold, respectively, supported by quantitative results. The results of this paper indicate the possibility to manipulate the whisker not only in term

SUBMITTER: Jovicevic-Klug M 

PROVIDER: S-EPMC8999954 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature