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Nierite |
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Kohatsu I, McCauley J W |
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Materials Research Bulletin 9 (1974) 917-920 |
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Re-examination of the crystal structure of alpha-Si3N4 |
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Locality: synthetic |
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7.766 7.766 5.615 90 90 120 P31c |
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atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Si1 .5130 .4305 .658 .96 .0080 .0058 .0081 .0032 .0014 .00059 |
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Si2 .1680 .9150 .4504 .99 .0080 .0071 .0064 .0038 .0038 -.00047 |
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N1 .6124 .9592 .4343 .0018 .0043 .0241 -.0003 .0028 .0067 |
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N2 .3199 .0046 .7045 .0016 .0014 .0213 -.0017 .0026 .0012 |
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N3 2/3 1/3 .6015 .0024 .0024 .0074 .0012 0 0 |
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N4 0 0 .4520 .98 .0064 .0064 .0179 .0032 0 0 |
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| Download AMC data (View Text File) Download CIF data (View Text File) Download diffraction data (View Text File) View JMOL 3-D Structure
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Nierite |
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Yang P, Fun H-K, Rahman I A, Saleh M I |
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Ceramics International 21 (1995) 137-142 |
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Two phase refinements of the structures of a-Si3N4 and B-Si3N4 made from rice |
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husk by Rietveld analysis |
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Locality: synthetic |
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Sample: Alpha phase |
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Note: changed N4 location to match reported bond distances |
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7.7650 7.7650 5.6275 90 90 120 P31c |
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atom x y z Biso |
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Si1 .5106 .0815 .1904 .73 |
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Si2 .1658 .2520 -.0168 .54 |
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N1 0 0 -.029 .26 |
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N2 1/3 2/3 .634 .3 |
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N3 .3488 -.0383 -.022 .8 |
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N4 .3092 .3546 .230 .1 |
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| Download AMC data (View Text File) Download CIF data (View Text File) Download diffraction data (View Text File) View JMOL 3-D Structure
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