Figure 8 .

The sketch map of the growth process of tungsten whisker-like structure. (a)The liquid phase formed by Ni or Fe segregation; (b) tungsten fluid phase; (c-d) nuclear of tungsten formed by the agglomeration of tungsten atoms; (e-f) the growth of tungsten whisker-like structure.

Ma et al. Nanoscale Research Letters 2012 7:325   doi:10.1186/1556-276X-7-325
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