±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 349  |  »Ø¸´: 2

attdey

ľ³æ (ÖøÃûдÊÖ)

[½»Á÷] ¡¾ÇóÖú¡¿ÇóÖú¾§Ìå½á¹¹ ÒÑÓÐ1È˲ÎÓë

ÄÄλͯЬ֪µÀÁù·½ B4C¾§ÌåµÄ¿Õ¼äȺºÍÔ­×Ó×ø±ê°¡  »­¾§Ìå½á¹¹Í¼Óà Ô½ÏêϸԽºÃ  £¬ÓÐ10µÄ½ð±ÒµÄÐÁ¿à·Ñ
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zbdfwq5777

ľ³æÖ®Íõ (ÎÄѧ̩¶·)

ÖÁ×ðɽÑò

ÎÄÏ׽ܳö¹±Ï×

B4C

¡ï ¡ï ¡ï
µÛ·ò(½ð±Ò+3):¸Ðл»ØÌû½»Á÷~ 2010-04-29 10:24
attdey(½ð±Ò+10):ллÁË ÄܸæËßÎÒÄãÊÇÔõô²éµ½µÄÂ𠣿 2010-04-29 20:05
*data for   ICSD #29093
Coll Code   29093
Rec  Date   1980/01/01
Mod  Date   2007/04/01
Chem Name   Boron(I) Carbide
Structured  B4 C
Sum         C1 B4
ANX         A4X
D(calc)     2.5
Title       The crystal structure of boron carbide
Author(s)   Clark, H.K.;Hoard, J.L.
Reference   Journal of the American Chemical Society
            (1943), 65, 2115-2119
            Zhurnal Fizicheskoi Khimii
            (1943), 17, 326-335
Unit Cell   5.61 5.61 12.14 90. 90. 120.
Vol         330.88
Z           9
Space Group R -3 m H
SG Number   166
Cryst Sys   trigonal/rhombohedral
Pearson     hR15
Wyckoff     h2 c b
Red Cell    RH 5.183 5.183 5.183 65.525 65.525 65.525 110.294
Trans Red   0.333 -0.333 -0.333 / -0.667 -0.333 -0.333 / 0.333 0.667 -0.333
Comments    Cell from 2nd reference: 5.63, 12.14, z(B1) was given as
            .36, cf, 23923
            AE: B1: B4 C54; B2: B5 C; Ca: B6 C2; C2: B6 C
            The structure has been assigned a PDF number (calculated
            powder diffraction data): 01-075-0424
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 35-798
            Structure type prototype : B4C
            Structure type : B4C
            X-ray diffraction from single crystal
            No R value given in the paper.
            At least one temperature factor missing in the paper.
Atom  #   OX   SITE      x           y           z           SOF      H
B    1  +1    18 h  0.1667      -.1667      0.26           1.         0   
B    2  +1    18 h  0.106       -.106       0.113          1.         0   
C    1  -4    6 c   0           0           0.385          1.         0   
C    2  -4    3 b   0           0           0.5            1.         0   
*end for    ICSD #29093
2Â¥2010-04-29 10:19:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zbdfwq5777

ľ³æÖ®Íõ (ÎÄѧ̩¶·)

ÖÁ×ðɽÑò

ÎÄÏ׽ܳö¹±Ï×

¡ï ¡ï ¡ï
µÛ·ò(½ð±Ò+3):¸Ðл»ØÌû½»Á÷~ 2010-04-29 10:24
3Â¥2010-04-29 10:19:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ attdey µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 265Çóµ÷¼Á +9 Сľ³æ085600 2026-04-06 9/450 2026-04-06 22:34 by chenzhimin
[¿¼ÑÐ] »¯¹¤Çóµ÷¼Á£¡ +17 RichLi_ 2026-04-06 17/850 2026-04-06 22:26 by qlm5820
[¿¼ÑÐ] 347²ÄÁÏר˶Çóµ÷¼Á +7 zj8215216 2026-04-06 7/350 2026-04-06 21:57 by dongzh2009
[¿¼ÑÐ] 318Çóµ÷¼Á +12 ykyhsa 2026-04-05 14/700 2026-04-06 17:46 by fuyu_
[¿¼ÑÐ] Ò»Ö¾Ô¸ ½­ÄÏ´óѧ 085602 »¯¹¤×¨Ë¶ 338·ÖÇóµ÷¼Á +15 ·³ÕСç÷ 2026-04-05 15/750 2026-04-06 09:27 by cql1109
[¿¼ÑÐ] 316Çóµ÷¼Á +5 yyxÏëµ÷¼Á 2026-04-05 5/250 2026-04-05 22:22 by ßÇßÇßÇßÇ9
[¿¼ÑÐ] 327Çóµ÷¼Á +4 ʰ¹âÈÎȾ 2026-04-05 4/200 2026-04-05 20:16 by ÄϺ½~ÍòÀÏʦ
[¿¼ÑÐ] 353Çóµ÷¼Á +10 MayUxw1 2026-04-03 10/500 2026-04-05 09:23 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 11408,335·Ö£¬±¾¿Æ211£¬Çóµ÷¼Á£¬¿Éתרҵ +5 öùÀæ´óöùÓã 2026-04-03 5/250 2026-04-04 22:49 by chongya
[¿¼ÑÐ] 320Çóµ÷¼Á +3 Ò»ÑùÔ² 2026-04-04 3/150 2026-04-04 22:29 by à£à£à£0119
[¿¼ÑÐ] 292·Ö£¬²ÄÁÏÓ뻯¹¤£¬ÉêÇëµ÷¼Á +22 ³ÌÇçÖ® 2026-04-01 26/1300 2026-04-04 22:03 by hemengdong
[¿¼ÑÐ] Çóµ÷¼Á +3 ũҵ¹¤³ÌÓëÐÅÏ¢¼ 2026-04-04 3/150 2026-04-04 12:19 by Éá¶øºóµÃ
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì×Ü·Ö358 +6 cs0106 2026-04-03 6/300 2026-04-04 11:20 by w_xuqing
[¿¼ÑÐ] 316Çóµ÷¼Á +14 ÖÛ×Ô¹£ 2026-04-01 18/900 2026-04-03 10:28 by linyelide
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-03-31 7/350 2026-04-02 23:16 by JourneyLucky
[¿¼ÑÐ] ÍÁľ304Çóµ÷¼Á +4 ÍÃͻͻͻ£¬ 2026-04-02 5/250 2026-04-02 21:16 by ÍÃͻͻͻ£¬
[¿¼ÑÐ] µ÷¼Á +3 ºÃºÃ¶ÁÊé¡£ 2026-04-01 6/300 2026-04-02 15:49 by liumengping
[¿¼ÑÐ] 266Çóµ÷¼Á +4 ѧԱ97LZgn 2026-04-02 4/200 2026-04-02 13:03 by yulian1987
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì£¬×Ü·Ö358 +4 cs0106 2026-04-01 4/200 2026-04-02 07:42 by ÉÐË®¸óÖ÷
[¿¼ÑÐ] 085404 22408 315·Ö +5 zhuangyan123 2026-03-31 6/300 2026-03-31 13:48 by limeifeng
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û