Question

Given the crystal structure of Zn is HCP (a = 266.49 pm, c = 494.68 pm):...

Given the crystal structure of Zn is HCP (a = 266.49 pm, c = 494.68 pm):

(a) Determine the slip system(s) based on the given information.

(b) Estimate the Peierls-Nabarro Stress for given that G = 43 GPa, and ?=0.25.

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Answer #1

1) Since Zinc has a HCP structure. So no of slip system for a HCP structure is = 3.

2) G = 43 GPa, v = .25,. a = 266.49pm,. c = 494.68pmPeierls stress (Tp) (-2ra X 2 G ll-u l-v) Top = 1.257 GPq P

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