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Literature searched through 1981. Dr. Abriata is the ASM/NBS Data Program Category Editor for binary zirconium alloys.
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Abriata, J.P., Bolcich, J.C. The Nb−Zr (Niobium−Zirconium) system. Bulletin of Alloy Phase Diagrams 3, 34–44 (1982). https://doi.org/10.1007/BF02873409
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DOI: https://doi.org/10.1007/BF02873409