Reports

Crystal Structures of Titanium, Zirconium, and Hafnium at High Pressures

Science  05 Apr 1963:
Vol. 140, Issue 3562, pp. 72-73
DOI: 10.1126/science.140.3562.72

Abstract

At high pressures, as determined by x-ray analysis, titanium and zirconium metal have a distorted, body-centered-cubic structure. This phase persists on pressure release. The normal hexagonal close-packed structures are recovered when the metals are heated. An electronic shift must occur in the transition. Hafnium metal showed no such transition.

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