Science · 1963 · 358 citations · 8 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsCrystal StructureSolid State PhysicsAlloysMetal MaterialsMetalsPhase TransitionsSolid-state Phase TransitionsX-ray CrystallographyBody-centered Cubic LatticeHexagonal Close-packed LatticeHexagonal Close-packed StructureHigh-pressure CrystallographyHigh-pressure Phase TransformationsHigh-pressure Phase TransitionsPressure-induced Phase TransitionsX-ray Diffraction Analysis
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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