Atomic Packing Factor for Bcc

The bcc and fcc with their higher densities are both quite common in nature. In case of body-centred cubic BCC arrangement there is an additional iron atom in the centre of each cube.

Answered Define Atomic Packing Factor Atomic Packing Factor Of Fcc Unit Cell Is More Than That Of Bcc Justify In 2022 Unit Cell Atom Fractions

The packing density also known as the atomic packing factor APF is essentially the fraction of the volume of atoms that occupy a crystal structure.

. Examples of bcc include iron chromium tungsten and niobium. FCC and HCP are both close-packed with a 74 atomic packing factor 12 nearest neighbors and the same interstitial sites. The most direct difference between FCC and HCP crystals is in the atomic arrangements.

The cP lattice has an APF of about 0524 the cI lattice an APF of about 0680 and the cF lattice an APF of about 0740. In the face-centred cubic FCC arrangement there is one additional iron atom. Atomic packing factor APF is the fraction of volume that is occupied by atoms.

However HCP only has 3 slip systems while FCC has 12 slip systems which lead to very different mechanical properties.

Unit Cell Chemistry Atomic Radius Density Edge Length Calculations Unit Cell The Unit Atom

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Answered Define Atomic Packing Factor Atomic Packing Factor Of Fcc Unit Cell Is More Than That Of Bcc Justify In 2022 Unit Cell Atom Fractions

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