应《网络安全法》要求，自2017年10月1日起，未进行实名认证将不得使用互联网跟帖服务。为保障您的帐号能够正常使用，请尽快对帐号进行手机号验证，感谢您的理解与支持！

24小时热门版块排行榜    

小木虫论坛-学术科研互动平台 » 材料区 » 晶体 » 基础理论 » 求由Al，Mg，B三种元素组成的合金的晶体结构
北京石油化工学院2026年研究生招生接收调剂公告
51/1返回列表
查看: 1703  |  回复: 6
只看楼主 @他人 存档 新回复提醒 (忽略) 收藏    在APP中查看
当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

gcz952849979

金虫 (小有名气)

[求助] 求由Al，Mg，B三种元素组成的合金的晶体结构

求由Al，Mg，B三种元素组成的合金的晶体结构，至少含有其中两种元素
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐，对您同样有帮助:
1楼 2013-11-05 14:01:54
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

gcz952849979

金虫 (小有名气)
引用回帖:
5楼: Originally posted by xhtangxh at 2013-11-05 15:58:58
Mg-Al二元合金：

1.
Card Information
Names:        beta-Aluminum Magnesium
Formula:        Al Mg
PDF Number:        3-877
Quality:        questionable
Subfiles:        inorganic alloy CP  EDU
Cell and Symmetry Information
Sy ...

请问这是那上面查阅的，怎么通过您给出的查看具体的每种晶体，除了看此参考文献（由于文献太老了，可能下载不到了），感谢您的答复。
赞一下 回复此楼
6楼2013-11-06 10:59:38
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 7 个回答

xhtangxh

木虫 (著名写手)

有木有虫

【答案】应助回帖

感谢参与，应助指数 +1
三元合金：

1.
Card Information
Names:        Aluminum Boron Magnesium
Formula:        Mg0.5 Al B14
PDF Number:        39-437
Quality:        calculated
Subfiles:        inorganic alloy NBS
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imam     (no.  74)
a:        5.8480        b:        8.1150        c:        10.3130
Z:        4
Instrument Information
Radiation:        CuKa1        Wavelength:        1.5405981       
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.23
Comments and Additional Information
General:        Pattern calculated by using atomic parameters from the Inorganic Structure Data File, Federal Republic of Germany.
Literature References
General:        Wong-Ng, W., McMurdie, H., Paretzkin, B.,Hubbard, C., Dragoo, A., NBS (USA). ICDD Grant-in-Aid            (1988)
Unit Cell:        Matkovic, V., Economy, J. Acta Crystallogr., Sec. B   26   616 (1970)

2.
Card Information
Names:        Aluminum Boron Magnesium
Formula:        Mg0.78 Al0.75 B14
PDF Number:        39-459
Quality:        calculated
Subfiles:        inorganic alloy NBS
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imam     (no.  74)
a:        5.8480        b:        8.1120        c:        10.3120
Z:        4
Instrument Information
Radiation:        CuKa1        Wavelength:        1.5405981       
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.23
Comments and Additional Information
General:        Pattern calculated by using atomic parameters from the Inorganic Structure Data File, Federal Republic of Germany.
Literature References
General:        Wong-Ng, W., McMurdie, H., Paretzkin, B.,Hubbard, C., Dragoo, A., NBS (USA). ICDD Grant-in-Aid            (1987)
Unit Cell:        Higashi, I., Ito, T. Acta Crystallogr., Sec. B   39   239 (1970)

3.
Card Information
Names:        Magnesium Aluminum Boron
        Magnesium aluminium boride
Formula:        Mg0.78 Al0.75 B14
PDF Number:        75-1262
Quality:        calculated
Subfiles:        inorganic alloy COR FIZ
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imcm     (no.   0)
a:        5.84800        b:        8.11200        c:        10.31200
Density (Dm):        2.600        Density (Dx):        2.586        Z:        4
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.22
Comments and Additional Information
ICSD Number:        030728
Temperature factor:        ATF
TI        Refinement of the structure of Mg Al B14
WY        j2 i h3 c (IMAM)
AF        N3O3P56
Literature References
General:         Calculated from ICSD using POWD-12++            (1997)
Structure:        Higashi, I., Ito, T. J. Less-Common Met.   92   239 (1983)

4.
Card Information
Names:        Aluminum Magnesium Boron
        Aluminum magnesium boride
Formula:        Al0.5 Mg0.5 B2
PDF Number:        89-3178
Quality:        calculated
Subfiles:        inorganic alloy FIZ
Cell and Symmetry Information
System:        hexagonal        Space Group:        P6/mmm   (no. 191)
a:        3.047        c:        3.366
Density (Dx):        2.900        Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        2.27
Comments and Additional Information
ICSD Number:        043838
TT        No R value given.
TT        At least one TF missing.
TI        Double borides of aluminum and magnesium
WY        d a (P6/MMM)
AF        NO2
Literature References
General:         Calculated from ICSD using POWD-12++            (    )
Structure:        Vekshina, N.V., Markovskii, L.Y., Kondrashev,Y.D., Voevodskaya, T.K. Zh. Prikl. Khim. (Leningrad)   44   970 (1971)
赞一下 回复此楼
2楼2013-11-05 15:04:02
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

xhtangxh

木虫 (著名写手)

有木有虫

【答案】应助回帖

B-Mg二元合金：

1.
Card Information
Names:        Boron Magnesium
Formula:        Mg B12
PDF Number:        8-263
Quality:        questionable
Subfiles:        inorganic alloy
Cell and Symmetry Information
System:        unknown       
Instrument Information
Radiation:        FeKa         Wavelength:        1.9373          
Instrument(d):        Debye-Scherrer       
Instrument(I):        visual estimate        I type:        unknown
Comments and Additional Information
General:        Phase C occurs over 1200 C.
Analysis:        Theoretical composition (wt.%): Mg 15.5, B 84.5.
Quality:        O assigned becasue unindexed and composition uncertain.
General:        Phase C.
Literature References
General:        Markovskij, Kondrasev, Kapumovskaja. Zh. Obshch. Khim.   23   433 (1955)

2.
2.1
Card Information
Names:        Magnesium Boron
        Magnesium boride
Formula:        Mg1.93 B14
PDF Number:        89-1534
Quality:        calculated
Subfiles:        inorganic alloy FIZ
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imcm     (no.   0)
a:        5.970        b:        8.125        c:        10.480
Density (Dm):        2.590        Density (Dx):        2.590        Z:        4
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.27
Comments and Additional Information
ICSD Number:        086397
RM        X-ray diffraction (powder)
Temperature factor:        ITF
TI        Crystal structure of magnesium heptaboride Mg2 B14
WY        j2 h3 e c (IMAM)
Analysis:        Mg2.01 B14
AF        NO7
Literature References
General:         Calculated from ICSD using POWD-12++            (    )
Structure:        Guette, A., Barret, M., Naslain, R.,Hagenmuller, P., Tergenius, L.E., Lundstrom,T. J. Less-Common Met.   82   325 (1981)

2.2
Card Information
Names:        Magnesium Boron
        Magnesium boride
Formula:        Mg0.97 B7
PDF Number:        89-3776
Quality:        calculated
Subfiles:        inorganic alloy FIZ
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imma     (no.  74)
a:        5.970        b:        10.480        c:        8.125
Density (Dm):        2.590        Density (Dx):        2.590        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:        0.33
Comments and Additional Information
ICSD Number:        044441
TT        At least one TF missing.
TI        Crystal structure of magnesium heptaboride
WY        j2 h3 e d (IMMA)
AF        NO7
Literature References
General:         Calculated from ICSD using POWD-12++            (    )
Structure:        Guette, A., Barret, M., Naslain, R.,Hagenmuller, P., Tergenius, R.-E.,Lundstroem, T. J. Less-Common Met.   82   325 (1981)

2.3
Card Information
Names:        Boron Magnesium
Formula:        B7 Mg
PDF Number:        65-4960
Quality:        calculated
Subfiles:        inorganic alloy NST
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imam     (no.  74)
a:        5.970        b:        8.125        c:        10.480
Density (Dm):        2.590        Density (Dx):        2.590        Z:        8
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.27
Comments and Additional Information
MC        N AL7821       1526
RM        Rietveld refinement
Temperature factor:        IB=B,Mg
EN        Mg2
Literature References
General:         Calculated from NIST using POWD-12++            (    )
Structure:        A.Guette,M.Barret,R.Naslain,P.Hagenmuller,L.-.Tergenius &   T.Lunstrom J. Less-Common Met.   82   325 (1981)

3.
Card Information
Names:        Boron Magnesium
Formula:        Mg B6
PDF Number:        15-298
Quality:        questionable
Subfiles:        inorganic alloy
Cell and Symmetry Information
System:        unknown       
Instrument Information
Radiation:        CuKa         Wavelength:        1.5418           Filter:        Ni
Instrument(d):        unknown       
Instrument(I):        visual estimate        I type:        unknown
Comments and Additional Information
General:        Phase occurs between 900 and 1250 C.
General:        Theoretical composition (wt.%): Mg 27.2, B 72.8.
Quality:        O assigned because unindexed.
Literature References
General:        Durhart. Ann. Chim. (Rome)    7   339 (1962)

4.
4.1
Card Information
Names:        Boron Magnesium
Formula:        B4 Mg
PDF Number:        15-299
Quality:        unknown
Subfiles:        inorganic alloy
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Pnam     (no.  62)
a:        5.464        b:        7.472        c:        4.428
Density (Dm):        2.490        Density (Dx):        2.482        Z:        4
Instrument Information
Radiation:        CuKa         Wavelength:        1.5418           Filter:        Ni
Instrument(d):        unknown       
Instrument(I):        visual estimate        I type:        unknown
Comments and Additional Information
Colour:        Black
General:        Naslain states Debye-Scherrer pattern agrees with data of Durhart.
Literature References
General:        Durhart. Ann. Chim. (Rome)    7   339 (1962)
Unit Cell:        Naslain et al. J. Solid State Chem.    8    68 (1973)

4.2
Card Information
Names:        Magnesium Boron
        Magnesium boride
Formula:        Mg B4
PDF Number:        73-1014
Quality:        calculated
Subfiles:        inorganic alloy COR FIZ
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Pnam     (no.  62)
a:        5.46400        b:        7.47200        c:        4.42800
Density (Dm):        2.495        Density (Dx):        2.482        Z:        4
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.78
Comments and Additional Information
ICSD Number:        023460
Temperature factor:        ATF
TI        Structure cristalline de tetraborure de magnesium
WY        d c3 (PNAM)
AF        NO4
Literature References
General:         Calculated from ICSD using POWD-12++            (1997)
Structure:        Guette, A., Naslain, R., Galy, J. C. R. Seances Acad. Sci., Ser. C  275    41 (1972)

5.
5.1
Card Information
Names:        Boron Magnesium
Formula:        Mg B2
PDF Number:        38-1369
Quality:        star
Subfiles:        inorganic alloy CP  NBS
Cell and Symmetry Information
System:        hexagonal        Space Group:        P6/mmm   (no. 191)
a:        3.0864        c:        3.5215
Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.5405981        Filter:        Graph
Instrument(d):        diffractometer        Cut Off:        17.7        Standard:        W
Instrument(I):        diffractometer        I type:        peak heights
Comments and Additional Information
Source:        The sample was obtained from Alfa Products/Thiokol Ventron Division, Danvers, Massachusetts, USA.  It contained a very small amount of magnesium d=2.440 (I<3) and unidentified reflections at d=3.15, 1.22, 0.943, 0.861 and 0.835 with I<2.
Colour:        Dark grayish brown
Structure:        The structure was determined by Jones and Marsh (1).
Temperature:        Mean temperature of data collection was 23.8 C.
Pattern:        To replace 00-006-0640.
Analysis:        SEM with Energy Dispersive Spectrometer (EDS) indicated no impurity.
Literature References
General:        Wong-Ng, W., McMurdie, H., Paretzkin, B.,Hubbard, C., Dragoo, A., NBS (USA). ICDD Grant-in-Aid            (1987)
Unit Cell:        Wong-Ng, W., McMurdie, H., Paretzkin, B.,Hubbard, C., Dragoo, A. Powder Diffraction    3    54 (1988)
Structure:        1. Jones, M., Marsh, R. J. Am. Chem. Soc.   76  1434 (1954)

5.2
Card Information
Names:        Boron Magnesium
Formula:        B2 Mg
PDF Number:        65-3383
Quality:        calculated
Subfiles:        inorganic alloy NST
Cell and Symmetry Information
System:        hexagonal        Space Group:        P6/mmm   (no. 191)
a:        3.0840        c:        3.5220
Density (Dm):        2.667        Density (Dx):        2.629        Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        2.42
Comments and Additional Information
MC        N AL4907       1525
Temperature factor:        IB=Mg,B
Pattern:        See PDF 01-074-0982.
Literature References
General:         Calculated from NIST using POWD-12++            (    )
Structure:        L.Markovskii Dokl. Akad. Nauk SSSR  100  1095 (1955)

5.3
Card Information
Names:        Magnesium Boron
        Magnesium boride
Formula:        Mg B2
PDF Number:        74-982
Quality:        calculated
Subfiles:        inorganic alloy COR FIZ
Cell and Symmetry Information
System:        hexagonal        Space Group:        P622     (no. 177)
a:        3.0834        c:        3.5213
Density (Dm):        2.620        Density (Dx):        2.630        Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        2.29
Comments and Additional Information
ICSD Number:        026675
TT        At least one TF missing.
TI        The Preparation and Structure of Magnesium Boride, Mg B2
Pattern:        See PDF 03-065-3383 and 00-038-1369.
OC        Cell from  Acta Crystallogr., 6  870 (1953): 3.084, 3.522, Dm=2.667.
WY        d a (P6/MMM)
AF        NO2
Literature References
General:         Calculated from ICSD using POWD-12++            (1997)
Structure:        Jones, M.E., Marsh, R.E. J. Am. Chem. Soc.   76  1434 (1954)
赞一下 回复此楼
3楼2013-11-05 15:23:34
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

xhtangxh

木虫 (著名写手)

有木有虫

【答案】应助回帖

B-Al二元合金：

1.
Card Information
Names:        beta-Aluminum Boron
Formula:        Al B12
PDF Number:        12-639
Quality:        indexed
Subfiles:        inorganic alloy CP
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Imma     (no.  74)
a:        12.34        b:        12.63        c:        10.16
Density (Dm):        2.600        Density (Dx):        2.600        Z:        15
Instrument Information
Radiation:        CuKa1        Wavelength:        1.5405           Filter:        Ni
Instrument(d):        unknown       
Instrument(I):        diffractometer        I type:        unknown
Comments and Additional Information
General:        Space group determined from single-crystal data.
Melting Point:        2200 C in helium
Lines:        Plus 26 additional reflections to 1.2132.
General:        Matkovich et al., call the phase Al3 B48 C2 [ J. Am. Chem. Soc., 86  2337 (1964)].
General:        Becher and Neidhard say <0.2 Si causes the formation of this beta-type structure [ Acta Crystallogr., Sec. B , 24  280 (1968)].
Literature References
General:        Kohn, Eckart. Anal. Chem.   32   296 (1960)

2.
Card Information
Names:        alpha-Aluminum Boron
Formula:        Al B12
PDF Number:        12-640
Quality:        indexed
Subfiles:        inorganic alloy CP
Cell and Symmetry Information
System:        tetragonal        Space Group:        P43212   (no.  96)
a:        10.16        c:        14.28
Density (Dm):        2.557        Density (Dx):        2.540        Z:        14.4
Instrument Information
Radiation:        CuKa1        Wavelength:        1.5405           Filter:        Ni
Instrument(d):        unknown       
Instrument(I):        diffractometer        I type:        unknown
Comments and Additional Information
General:        Space group determined from single-crystal data.
Melting Point:        2150 C in helium
Unit Cell:        Yannoni,  Diss. Abstr., 22  1032 (1961) reports: a=10.17, c=14.28, D=2.55, Z=15.6-16.0 for Al B11.
Unit Cell:        Serebryanskii, Epel'baum,  J. Struct. Chem. (USSR), 2 692 (1961) reports: a=10.15, c=14.29, D=2.62 for alpha-Al B12.
Lines:        Plus 12 reflections to 1.1209.
Pattern:        To replace 00-016-0278.
General:        PSC: tP216 for filled cell.
Literature References
General:        Kohn, Eckart. Anal. Chem.   32   296 (1960)

3.
Card Information
Names:        gamma-Aluminum Boride
Formula:        Al B12
PDF Number:        65-5975
Quality:        calculated
Subfiles:        inorganic alloy NST
Cell and Symmetry Information
System:        orthorhombic        Space Group:        P212121  (no.  19)
a:        16.623        b:        17.540        c:        10.180
Density (Dx):        2.549        Z:        29
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.05
Comments and Additional Information
MC        A 50412  ST787      0
Temperature factor:        TF was not given, B set to 1.000 for calc.
Preparation:        see J.A. Kohn and D.W. Eckart, Z.Kristal.,116(1961)134
Structure:        Kagome nets and the interleaving triangular net frame with truncated tetrahedral holes
RM        Real composition is Al27.88B352.
TI        Icosahedral boron framework. The structure of gamma-AlB12
Literature References
General:         Calculated from NIST using POWD-12++            (    )
Structure:        Hughes, R.E, Leonowicz, M.E., Lemley, J.T.,Tai, L.-T. J. Am. Chem. Soc.   99  5507 (1977)

4.
Card Information
Names:        Aluminum Boron
Formula:        Al13.35 B176
PDF Number:        65-4736
Quality:        calculated
Subfiles:        inorganic alloy NST
Cell and Symmetry Information
System:        tetragonal        Space Group:        P43212   (no.  96)
a:        10.161        c:        14.283
Density (Dm):        2.650        Density (Dx):        2.548        Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.11
Comments and Additional Information
MC        N AL3269       220
Temperature factor:        IB=B,Al
EN        Al(2) z=.3030
Literature References
General:         Calculated from NIST using POWD-12++            (    )
Structure:        J.S.Kasper,M.Vlasse & R.Naslain J. Solid State Chem.   20   281 (1977)

5.
Card Information
Names:        Aluminum Boron
        aluminium boride
Formula:        ( Al0.942 B10 )5.2
PDF Number:        72-47
Quality:        calculated
Subfiles:        inorganic alloy COR FIZ
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Bbmm     (no.  63)
a:        8.88100        b:        9.10000        c:        5.69000
Density (Dm):        2.537        Density (Dx):        2.501        Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.19
Comments and Additional Information
ICSD Number:        015354
TT        Calcul. formula slightly deviates from input.
TT        Calc. density unusual but tolerable.
TT        At least one TF implausible.
Temperature factor:        ITF
TI        Crystal structure analysis of Al B10 by the convolution molecule method
WY        h2 g2 f4 c b (BBMM)
Analysis:        Al B10
AF        NO18
Literature References
General:         Calculated from ICSD using POWD-12++            (1997)
Structure:        Will, G. Acta Crystallogr.   23  1071 (1967)

6.
Card Information
Names:        Aluminum Boron
        Aluminium boride
Formula:        Al B31
PDF Number:        80-621
Quality:        calculated
Subfiles:        inorganic alloy COR FIZ
Cell and Symmetry Information
System:        rhombohedral        Space Group:        R-3m     (no. 166)
a:        10.965        c:        23.868
Density (Dx):        2.411        Z:        10
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated        Cut Off:        17.7       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.24
Comments and Additional Information
ICSD Number:        068424
Temperature factor:        ITF
TI        Single-crystal X-ray diffraction study of Al B31 of the beta-rhombohedral boron structure
WY        i6 h10 c2 b (R3-MH)
AF        N10O309
Literature References
General:         Calculated from ICSD using POWD-12++            (1997)
Structure:        Higashi, I., Iwasaki, H., Ito, T., Lundstrom,T., Okada, S., Tergenius, L.-E. J. Solid State Chem.   82   230 (1989)

7.
Card Information
Names:        Boron Aluminum
Formula:        Al B10
PDF Number:        15-617
Quality:        unknown
Subfiles:        inorganic alloy
Cell and Symmetry Information
System:        orthorhombic        Space Group:        Bbmm     (no.  63)
a:        8.881        b:        9.100        c:        5.690
Density (Dm):        2.537        Z:        5.2
Instrument Information
Radiation:        CuKa         Wavelength:        1.5418           Filter:        Ni
Instrument(d):        unknown       
Instrument(I):        densitometer        I type:        unknown
Comments and Additional Information
General:        Pseudotetragonal.
General:        Single-crystal data taken.
General:        Eight or nine of the available 66 sites appear to be unoccupied.
General:        Structure similar to that for Al C4 B24.  [Will, G.,  Acta Crystallogr., Sec. B , 25  1219 (1969)].
Literature References
General:        Kohn et al. Z. Kristallogr., Kristallgeom., Kristallphys., Kristallchem.  111    53 (1958)
Unit Cell:        Will, G. Acta Crystallogr.   23  1071 (1967)

8.
Card Information
Names:        Aluminum Boron
Formula:        Al B10
PDF Number:        22-2
Quality:        questionable
Subfiles:        inorganic alloy
Cell and Symmetry Information
System:        rhombohedral        Space Group:        R        (no.   0)
a:        7.835        c:        15.91
Z:        9
Instrument Information
Radiation:                     Wavelength:                        
Instrument(d):        unknown       
Instrument(I):        unknown        I type:        unknown
Comments and Additional Information
Unit Cell:        Rhombohedral cell: a=6.97, alpha=68.4 degrees.
Preparation:        Formed by heating Al B10 at 950 C in He atmosphere.
General:        High temperature form.
Literature References
General:        Will. Z. Kristallogr., Kristallgeom., Kristallphys., Kristallchem.  128   156 (1969)

9.
Card Information
Names:        Aluminum Boron
Formula:        Al B2
PDF Number:        39-1483
Quality:        star
Subfiles:        inorganic alloy CP  NBS
Cell and Symmetry Information
System:        hexagonal        Space Group:        P6/mmm   (no. 191)
a:        3.0054        c:        3.25276
Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.5405981        Filter:        Graph
Instrument(d):        diffractometer        Cut Off:        17.7        Standard:        Si
Instrument(I):        diffractometer        I type:        peak heights
Comments and Additional Information
Source:        The sample was provided by the National Bureau of Standards, Maryland, USA.
Structure:        alpha-Al2 O3 was present as a minor phase impurity. The structure of Al B2 was determined by Marcantonia and Mondolfo (1).
Pattern:        To replace 00-009-0154.
Temperature:        The mean temperature was 25 C.
Literature References
General:        Wong-Ng, W., McMurdie, H., Paretzkin, B.,Hubbard, C., Dragoo, A., NBS (USA). ICDD Grant-in-Aid            (1988)
Unit Cell:        Wong-Ng, W., McMurdie, H., Paretzkin, B.,Hubbard, C., Dragoo, A. Powder Diffraction    3   180 (1988)
Structure:        1. Marcantonio, J., Mondolfo, L. J. Inst. Met.   98    23 (1970)

10.
Card Information
Names:        Aluminum Boron
Formula:        Al27.87 B352
PDF Number:        65-1354
Quality:        calculated
Subfiles:        inorganic alloy NST
Cell and Symmetry Information
System:        orthorhombic        Space Group:        P212121  (no.  19)
a:        16.623        b:        17.540        c:        10.180
Density (Dm):        2.560        Density (Dx):        2.549        Z:        1
Instrument Information
Radiation:        CuKa1        Wavelength:        1.54060         
Instrument(d):        calculated       
Instrument(I):        calculated        I type:        peak heights
I/Icor:        0.05
Comments and Additional Information
MC        N AL1225       216
Temperature factor:        IB=Al,B
Literature References
General:         Calculated from NIST using POWD-12++            (    )
Structure:        R.E.Hughes,M.E.Leonowicz,J.T.Lemley & L.-T.Ta J. Am. Chem. Soc.   99  5507 (1977)
赞一下 回复此楼
4楼2013-11-05 15:48:34
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 7 个回答
普通表情 龙 兔 虎 猫
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 环境工程297分求调剂一志愿杭高院 +3 GENJIOW 2026-03-31 3/150 2026-03-31 12:49 by 上岸快快
[考研] 南京大学化学调剂 +11 景随风 2026-03-29 16/800 2026-03-31 10:14 by herarysara
[考研] 282求调剂 不挑专业 求收留 +3 Yam. 2026-03-30 4/200 2026-03-31 10:04 by cal0306
[考研] 材料学硕333求调剂 +18 北道巷 2026-03-24 18/900 2026-03-31 09:56 by luoyongfeng
[考研] 一志愿西交288化工专硕求调剂 +4 好运好运接接 2026-03-24 4/200 2026-03-31 09:18 by 西京学院土木工�
[考研] 环境工程 085701，267求调剂 +11 minht 2026-03-29 11/550 2026-03-31 08:21 by sunshine0013
[考研] 277跪求调剂 +8 1915668 2026-03-27 12/600 2026-03-30 21:01 by dophin1985
[考研] 359求调剂 +5 王了个楠 2026-03-25 5/250 2026-03-30 19:36 by 源_2020
[考研] 105500药学求调剂，一志愿山东大学药学，348分 +3 gr哈哈哈 2026-03-28 3/150 2026-03-30 18:56 by 源_2020
[考研] 材料专硕 085600求调剂 +7 BBQ233 2026-03-30 7/350 2026-03-30 17:44 by oooqiao
[考研] 329求调剂，一志愿西北工业大学，材料工程（085601） +5 小小机灵虫 2026-03-29 11/550 2026-03-30 15:02 by Wang200018
[考研] 298求调剂 +3 什么是胖头鱼 2026-03-30 5/250 2026-03-30 14:41 by 青海小西牛
[考研] 求化学调剂 +11 wulanna 2026-03-28 11/550 2026-03-30 10:59 by 探123
[考研] 348求调剂 +6 小懒虫不懒了 2026-03-28 6/300 2026-03-30 10:29 by Evan_Liu
[考研] 复试调剂 +3 raojunqi0129 2026-03-28 3/150 2026-03-28 15:27 by 落睿可思
[考研] 266分，求材料冶金能源化工等调剂 +7 哇呼哼呼哼 2026-03-27 9/450 2026-03-28 12:22 by zllcz
[有机交流] 高温高压反应求助 10+4 chibby 2026-03-25 4/200 2026-03-27 21:08 by BT20230424
[考研] 303求调剂 +6 蓝山月 2026-03-25 6/300 2026-03-25 22:47 by 418490947
[考研] 【2026考研调剂】制药工程 284分 求相关专业调剂名额 +4 袁奂奂 2026-03-25 8/400 2026-03-25 14:32 by lbsjt
[考研] 一志愿北化315 求调剂 +3 akrrain 2026-03-24 3/150 2026-03-24 19:35 by 了了了了。。
信息提示
关闭
请填处理意见
关闭