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HRTEMÏÔʾÐγɺ˿ǽṹµÄºËÓë¿ÇµÄ½Ó´¥±ß½ç£¬¶þÑõ»¯îÑÓë̼»¯Îٵľ§½çÓнϷ¢ÓýµÄ¹²¸ñ½á¹¹£¬´óÃæ»ýµÄȱÏÝ£¨ÏßȱÏݺ͵ãȱÏÝ£©£¬µ¼ÖÂÁ½Õß¾ù´æÔÚ¾§¸ñ»û±ä¡£ÇÒ½áºÏXPS·ÖÎö½á¹ûÖÐÐγɺ˿ǽṹÖÐTiÔªËØµÄ»¯Ñ§Î»ÒƵõ½ÑéÖ¤£¬ÍƲâWCºÍTiO2½çÃæ¿ÉÄÜÒÔTi-O-W¼üµÄÐÎʽÏà½áºÏ¡£ ´ÓÑ»··ü°²·¨²âÊÔ¶Ô¼×´¼µÄµçÑõ»¯ÐÐΪ¿ÉÒÔÃ÷ÏÔ¿´³ö£¬¾ßÓк˿ǽṹµÄ̼»¯ÎÙ/¶þÑõ»¯îÑÄÉÃ׸´ºÏ²ÄÁϵç´ß»¯ÐÔÄÜÃ÷ÏÔ¸ßÓÚûÐγɺ˿ǽṹµÄÑùÆ·¡£Ðγɺ˿ǽṹµÄÁ½¸öÑùÆ·W/Ti=1:3Ã÷ÏÔ±ÈW/Ti=1:1µÄ̼»¯ÎÙº¬Á¿ÉÙ£¬µ«Æä·ÇÕû±È»îÐÔÏàWC1-xµÄµ¥Î»»îÐÔλÊýÒª¶àÓÚWC£¬×ۺϽá¹ûÊÇÁ½Õß»îÐÔÏàËÆ¡£´Ó¾¼ÃÐ§Òæ¿´ÖƱ¸ÎÙÔ´±ÈW/Ti=1:3¡¢·´Ó¦Ê±¼äΪ5СʱΪºË¿Ç½á¹¹Ì¼»¯ÎÙ/¶þÑõ»¯îÑÄÉÃ׸´ºÏ²ÄÁÏ×î¼ÑµÄÖÆ±¸¹¤ÒÕ¡£ [ Last edited by saral on 2011-4-17 at 08:46 ] |
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sltmac(½ð±Ò+1): лл½»Á÷~~~ 2011-04-17 09:23:23
sltmac(½ð±Ò+30): 2011-04-22 12:22:07
sltmac(½ð±Ò+10): »¶Ó³£À´~~~ 2011-04-22 12:22:16
ringzhu: ÓÐÈËÖÕÓÚ»»Í·ÏñÁË¡£¡£¡£¡£ 2011-04-22 17:57:25
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sltmac(½ð±Ò+30): 2011-04-22 12:22:07
sltmac(½ð±Ò+10): »¶Ó³£À´~~~ 2011-04-22 12:22:16
ringzhu: ÓÐÈËÖÕÓÚ»»Í·ÏñÁË¡£¡£¡£¡£ 2011-04-22 17:57:25
| HRTEM showed the formation of nuclear contact boundary between the shell of the core-shell structure ,in which titanium dioxide and tungsten carbide grain boundaries had a more coherent structure with large area of defects (line defects and point defects), leading to the distortion in both existing lattice,which was verified through XPS analysis results and the chemical shift of Ti in the formed core-shell structure, suggesting that the interface of WC and TiO2 may be combined in the form of Ti-OW. |

2Â¥2011-04-17 08:55:35
jfly
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ringzhu: ¸ÒÎÊÄãÕâ¸ö·ÒëµÄÊÇ£¿ 2011-04-24 19:43:56
| Based on the Ñ»··ü°²·¨²âÊÔ¶Ô¼×´¼µÄµçÑõ»¯ÐÐΪ, it is concluded that µç´ß»¯ÐÔÄÜ of ̼»¯ÎÙ/¶þÑõ»¯îÑÄÉÃ׸´ºÏ²ÄÁÏ with ºË¿Ç½á¹¹ is significantly greater than those without ºË¿Ç½á¹¹. In the two sample which have ºË¿Ç½á¹¹, the one with W/Ti=1:3 has less ̼»¯ÎÙ than the one with W/Ti=1:1. On the other hand, Æä(?)·ÇÕû±È»îÐÔÏàWC1-xµÄµ¥Î»»îÐÔλÊýÒª¶àÓÚWC. Combining these two effects, the »îÐÔs of the two sample are close. Considering economic factors, the best conduction for producing ºË¿Ç½á¹¹Ì¼»¯ÎÙ/¶þÑõ»¯îÑÄÉÃ׸´ºÏ²ÄÁÏ is the combination of a ÎÙÔ´±ÈW/Ti equals to 1:3 and a ·´Ó¦Ê±¼ä equals to 5 hours. |
3Â¥2011-04-24 03:11:11
jfly
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- ·ÒëEPI: 1
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¡¾´ð°¸¡¿Ó¦Öú»ØÌû
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Based on the Ñ»··ü°²·¨²âÊÔ¶Ô¼×´¼µÄµçÑõ»¯ÐÐΪ, it is concluded that µç´ß»¯ÐÔÄÜ of ̼»¯ÎÙ/¶þÑõ»¯îÑÄÉÃ׸´ºÏ²ÄÁÏ with ºË¿Ç½á¹¹ is significantly greater than those without ºË¿Ç½á¹¹. In the two samples which have ºË¿Ç½á¹¹, the one with W/Ti=1:3 has less ̼»¯ÎÙ than the one with W/Ti=1:1. On the other hand, Æä(?)·ÇÕû±È»îÐÔÏàWC1-xµÄµ¥Î»»îÐÔλÊýÒª¶àÓÚWC. Combining these two effects, the »îÐÔs of the two sample are very close. Considering economic factors, the best conduction for producing ºË¿Ç½á¹¹Ì¼»¯ÎÙ/¶þÑõ»¯îÑÄÉÃ׸´ºÏ²ÄÁÏ is the combination of a ÎÙÔ´±ÈW/Ti equals to 1:3 and a ·´Ó¦Ê±¼ä equals to 5 hours. |
4Â¥2011-04-24 03:12:41














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