Journal
PHILOSOPHICAL MAGAZINE LETTERS
Volume 94, Issue 6, Pages 370-376Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500839.2014.913818
Keywords
crystal structure; body-centred cubic structure; transmission electron microscopy; metallic materials; face-centred cubic structure; hexagonal closed-packed structure
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Funding
- National Natural Science Foundation of China [51301207]
- China Postdoctoral Science Foundation [2013M531806]
- China Postdoctoral International Exchange Program
- Australian Research Council [DP120100510]
- Fundamental Research Funds for Central Universities [2011JQ021]
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Hafnium (Hf) is an important material for a wide range of applications including filaments, electrodes and control rods for nuclear reactors. Based on the equilibrium phase diagram, Hf exists in the form of a hexagonal closed-packed structure at temperature below 1743 degrees C or a body-centred cubic structure at temperature above 1743 degrees C. Here, we report the coexistence at ambient temperature of a hexagonal closed-packed structure, a body-centred cubic structure and a face-centred cubic structure with well-defined crystallographic orientation relationships in pure Hf produced by the iodide decomposition method.
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