Na transforms from bcc to hcp when temperature is 23K. Assuming the density remains fixed and the c/a ratio is ideal calculate the hcp lattice spacing a given that the cubic lattice spacing a = 4.23Å in the cubic phase.

Na transforms from bcc to hcp when temperature is 23K. Assuming the density remains fixed and the c/a ratio is ideal calculate the hcp lattice spacing a given that the cubic lattice spacing a = 4.23Å in the cubic phase.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

The Space Lattice and Unit Cells

Every matter consists of atoms, molecules, and ions. If these atoms, molecules, and ions (micro-particles) are represented in a three-dimensional space-occupying certain specific points in space, then these arrangements are termed as space lattices and the specific points which are being occupied by atoms, molecules and ions are termed as lattice points. The atoms, molecules, and ions at the lattice points are generally grouped in a regular fashion and repeat periodically at the three-dimensional space.

Question

(5) Na transforms from bcc to hep when temperature is 23K. Assuming the density remains fixed and the
c/a ratio is ideal calculate the hep lattice spacing a given that the cubic lattice spacing a = 4.23Å in
the cubic phase.

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