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[求助]
求XRD卡片中碳酸氧鉍的RIR值 已有1人參與
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用JADE處理XRD時(shí),有Bi和碳酸氧鉍兩種物質(zhì),想分析兩者的含量,卡片上只有Bi的RIR,碳酸氧鉍的沒(méi)有,哪位有碳酸氧鉍的RIR值?![]() |
木蟲(chóng) (著名寫(xiě)手)
有木有蟲(chóng)
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RIR值為14.18。 參見(jiàn): Card Information Names: Bismuth Carbonate Oxide Bismutite, syn Formula: Bi2 O2 C O3 PDF Number: 84-1752 Quality: calculated Subfiles: inorganic mineral FIZ Cell and Symmetry Information System: orthorhombic Space Group: Pna21 (no. 33) a: 5.46800 b: 27.32000 c: 5.46800 Density (Dx): 8.292 Z: 8 Instrument Information Radiation: CuKa1 Wavelength: 1.54060 Instrument(d): calculated Cut Off: 17.7 Instrument(I): calculated I type: peak heights I/Icor: 14.18 Comments and Additional Information ICSD Number: 202767 NT Rietveld profile refinement applied TT At least one TF implausible. Temperature factor: ITF Pattern: See PDF 00-041-1488 and ICSD 36245. TI Structural relationships between Bi2 O2 C O3 and beta-Bi2 O3 Literature References General: Calculated from ICSD using POWD-12++ (1997) Structure: Greaves, C., Blower, S.K. Mater. Res. Bull. 23 1001 (1988) |
木蟲(chóng) (著名寫(xiě)手)
有木有蟲(chóng)
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同種物質(zhì)不同的卡片號(hào)RIR值不一定相同,因?yàn)橥晃锵嗖煌幪?hào)的卡片可能對(duì)應(yīng)不同測(cè)試條件(如壓強(qiáng)、溫度)。JCPDS Nos. 41–1488與84-1752對(duì)應(yīng)同一物相,前者數(shù)據(jù)是實(shí)驗(yàn)測(cè)試獲得的,后者數(shù)據(jù)是根據(jù)前者數(shù)據(jù)用理論模型計(jì)算獲得的。 Bi的RIR值可以通過(guò)查與JCPDS No. 44–1246有相同空間群、同樣條件下測(cè)得的卡片獲得。 一般JCPDS 65輯、80~89輯的卡片會(huì)提供RIR值,計(jì)算時(shí)應(yīng)引用與實(shí)際測(cè)試條件一致或盡量接近的卡片中的RIR值。 |
木蟲(chóng) (著名寫(xiě)手)
有木有蟲(chóng)
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Bi的RIR值取23.02,參見(jiàn)以下卡片信息: Card Information Names: Bismuth Bismuth Formula: Bi PDF Number: 85-1329 Quality: calculated Subfiles: inorganic mineral alloy FIZ Cell and Symmetry Information System: rhombohedral Space Group: R-3m (no. 166) a: 4.546 c: 11.862 Density (Dm): 9.740 Density (Dx): 9.805 Z: 6 Instrument Information Radiation: CuKa1 Wavelength: 1.54060 Instrument(d): calculated Cut Off: 17.7 Instrument(I): calculated I type: peak heights I/Icor: 23.02 Comments and Additional Information ICSD Number: 064703 Temperature: REM TEM 25 C. RM REM M PDF 00-005-0519. Temperature factor: ITF TI The Crystal Structure of Bi and of solid solutions of Pb, Sn, Sb and Te in Bi OC Cell at 304 K: 4.54613(18), 11.86152(60) from Aust. J. Phys., 13 209-222 (1960). Cell from J. Appl. Crystallogr., 2 30-36 (1969) at 4.2 K: 4.5330(5), 11.797(1), at 78 K: 4.5350, 11.814. WY c (R3-MH) AF N Literature References General: Calculated from ICSD using POWD-12++ (1997) Structure: Cucka, P., Barrett, C.S. Acta Crystallogr. 15 865 (1962) |
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