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【求助】求助金属铬的PDF卡片
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火星的氧气(金币+5): 2010-10-12 14:55:28
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PDF#19-0323: QM=Intermediate; d=Debye-Scherrer; I=Film/Visual Chromium Cr Radiation=MoKa Lambda=0.7107 Filter=Zr Calibration= d-Cutoff= I/Ic(RIR)= Ref= Kimoto, Nishida. J. Phys. Soc. Jpn., 22 744 (1967) Cubic - Powder Diffraction, Pm-3n (223) Z=8 mp= Cell=4.588 Pearson=cP8 (Cr3 Si) Density(c)=7.150 Density(m)=7.20A Mwt=52.00 Vol=96.58 F(19)=6.9(0.111,25) Ref= Ibid. Strong Line: 2.05/X 1.87/8 2.30/6 1.44/5 1.23/5 1.27/4 1.02/4 1.00/4 0.91/4 0.85/4 NOTE: Melting point transforms to b.c.c. at 450 C (probably metastable at ~20 C). Produced by evaporation and condensation of Cr in high purity (99.9%) argon at low pressures. Thin film. Probably stabilized by impurity. *Not permitted by space group. d(A) I(f) I(v) h k l n^2 2-Theta Theta 1/(2d) 2pi/d 2.300 60.0 50.0 2 0 0 4 39.133 19.567 0.2174 2.7318 2.049 100.0 94.0 2 1 0 5 44.164 22.082 0.2440 3.0665 1.873 80.0 82.0 2 1 1 6 48.567 24.284 0.2670 3.3546 1.611 10.0 12.0 2 2 0 8 57.128 28.564 0.3104 3.9002 1.441 50.0 67.0 3 1 0 10 64.626 32.313 0.3470 4.3603 1.387 10.0 14.0 3 1 1 11 67.471 33.735 0.3605 4.5301 1.327 30.0 44.0 2 2 2 12 70.967 35.483 0.3768 4.7349 1.274 40.0 60.0 3 2 0 13 74.402 37.201 0.3925 4.9319 1.226 50.0 78.0 3 2 1 14 77.848 38.924 0.4078 5.1249 1.145 35.0 59.0 4 0 0 16 84.557 42.278 0.4367 5.4875 1.022 40.0 75.0 4 2 0 20 97.824 48.912 0.4892 6.1479 1.002 40.0 77.0 4 2 1 21 100.482 50.241 0.4990 6.2706 0.978 20.0 39.0 3 3 2 22 103.835 51.918 0.5109 6.4206 0.911 40.0 84.0 4 3 0 25 115.458 57.729 0.5488 6.8970 0.853 40.0 90.0 5 2 0 29 129.032 64.516 0.5860 7.3634 0.834 30.0 69.0 5 2 1 30 134.652 67.326 0.5989 7.5266 0.811 30.0 71.0 4 4 0 32 143.192 71.596 0.6159 7.7398 0.787 10.0 24.0 5 3 0 34 155.856 77.928 0.6348 7.9766 0.769 40.0 100.0 6 0 0 36 --- --- 0.6496 8.1632 0.746 30.0 77.0 6 1 1 38 --- --- 0.6702 8.4225 |
2楼2010-10-12 10:52:58
