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Jhansi Kokkiligadda
Jhansi KokkiligaddaCopper
Asked: June 12, 20202020-06-12T12:48:27+05:30 2020-06-12T12:48:27+05:30In: Numericals (All papers)

Calculate the volume change associated with the change in crystal structure.

Pure iron goes through a polymorphic change from BCC to FCC upon heating at 912°C.

(a) Calculate the volume change associated with the change in crystal structure from BCC to FCC if at 912°C the BCC unit cell had a lattice constant a = 0.293 nm and the FCC unit cell a lattice constant a’=0.363 nm. Make sure to explain clearly the different steps you have undertaken to come up with the solution.

(b) What consequences this change of volume could have? Give an example where this change of volume is important to consider.

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    1. AakashSingh Copper
      2020-06-12T18:14:35+05:30Added an answer on June 12, 2020 at 6:14 pm

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