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data for ICSD #102795 Coll Code 102795 Rec Date 2004/10/01 Chem Name Cromium Niobium (2/1) Structured Cr2 Nb Sum Cr2 Nb1 ANX NO2 D(calc) 7.71 Title Isothermal section of the Mo - Zr - Cr constitution diagram at 1500 C Author(s) Kornilov, I.I.; Alisova, S.P.; Budberg, P.B. Reference Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy (1965), 1(12), 2205-2207 Izvestiya Akademii Nauk SSSR, Metally (1969), 1969(3), 181-183 Journal of the Less-Common Metals (1986), 119, 297-305 Unit Cell 6.974 6.974 6.974 90. 90. 90. Vol 339.19 Z 8 Space Group F d -3 m S SG Number 227 Cryst Sys cubic Pearson cF24 Wyckoff d a Red Cell F 4.931 4.931 4.931 60 60 60 84.798 Trans Red 0.500 0.500 0.000 / 0.000 0.500 0.500 / 0.500 0.000 0.500 Comments Annealed at 1623 K, quenched Cell from 2nd ref. (Budberg & Alisova): 6.95 Cell from 3rd ref. (Blazina & Trojko): 6.991 The structure has been assigned a PDF number: 5-701 Structure type : Cu2Mg X-ray diffraction (powder) No R value given in the paper. At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Cr 1 +0 16 d 0.625 0.625 0.625 1. 0 Nb 1 +0 8 a 0 0 0 1. 0 *end for ICSD #102795 |
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