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4Â¥2009-07-15 10:12:04
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2Â¥2009-07-15 10:04:10
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zsgandy(½ð±Ò+10,VIP+0): 7-15 11:01
zsgandy(½ð±Ò+10,VIP+0): 7-15 11:01
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ÔÚµ±Ç°Êª·¨Ò±½ð¹¤ÒµÁìÓòÖУ¬Ç¦¼°Ç¦ºÏ½ð×÷ΪÄÑÈÜÐÔÑô¼«²ÄÁÏÈÔ±»¹ã·ºµÄÓ¦ÓÃÓÚµç½âCu¡¢ZnµÈµÄÉú²úÖУ¬µ«ÓÉÓÚǦµç¼«ÔÚµç½âÒºÖеÄÉÙÁ¿Èܽ⡢Òõ¼«Îö³ö¡¢Ò×Èä±ä¡¢µç×èÂÊ´óµÈȱµã£¬ÏûºÄÁËÑô¼«²ÄÁÏ£¬Ó°ÏìÁËÑô¼«Ê¹ÓÃÊÙÃü£¬¶øÇÒÈܽâÔÚÈÜÒºÖеÄǦ»áÔÚÒõ¼«ÉÏÎö³öʹ½ðÊôÖеÄǦÔÓÖÊÔö¸ß£¬½µµÍÁ˲úÆ·ÖÊÁ¿¡£Òò´Ë£¬Ëæ×ŵ±Ç°¾¼ÃÉç»á·¢Õ¹¶ÔÉú²úÉú»îÖнÚÄÜ¡¢½µºÄµÄÒªÇ󣬯ÈÇÐÒªÇóÖÆ±¸³öÒ»ÖÖ×ÛºÏÐÔÄÜÓÅÒìµÄÐÂÐ͵缫²ÄÁÏ£¬ÓÈÆäÊǽðÊô²ã×´¸´ºÏµç¼«²ÄÁÏ×îΪÈÝÒ×ʵÏÖÑо¿¿ª·¢¡£ Currently, in hydrometallurgy industries field, lead and lead alloy as insoluble anode material are still widely applied in electrolysis of Cu, Zn. But lead electrode dissolves a small portion of itself in electrolyte, and other disadvantages such as precipitation from cathode, easily changed, large resistivity, so that it consumes anode, as well as impacts anode life. Worse, lead dissolved in solution will be precipitated on cathode so as to cause lead impurity increase and reduce product quality. Thus, under condition of saving energy and reducing consumption to cater for current economic and social development, a new type of integrated performance electrode material is necessary urgently. In particular, laminated metal electrode composite materials are easily to research and develop. È»¶ø£¬ÏÖÔÚ¹úÄÚÍâ¹ØÓÚ½ðÊô²ã×´¸´ºÏµç¼«²ÄÁϱ¨µÀ²¢²»¶à¡£ËùÒÔ±¾¿ÎÌâ¡°µÚÈý×éÔª¸ÄÉÆAl¡¢Pb½çÃæ½áºÏ×´¿ö¼°Æä²ÄÁÏÐÔÄܵÄÑо¿¡±ÓдýÌî²¹¹úÄÚ¾ßÓÐ×ÔÖ÷֪ʶ²úȨµÄ²ã×´¸´ºÏµç¼«²ÄÁÏÑÐÖÆ¼¼Êõ¿Õ°×£¬¾ßÓлý¼«ÒâÒå¡£Ñо¿¹¤×÷¼°½á¹ûÖ÷Òª°üÀ¨£º However, reports about metal laminated composite electrode materials are rare at home and abroad. Therefore, this issue, "the third element to improve interface of Al, Pb and properties of material" can improve technologies of laminated composite electrode material in our country which possess independent intellectual property rights, and it shows positive significance. Researches and results as follows: |

3Â¥2009-07-15 10:08:58
monitor2885
ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)
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(1) »ùÓÚ¼ü²ÎÊýº¯ÊýÀíÂÛ¡¢µç¸ºÐÔ²îÀíÂÛ¡¢Ô×ӳߴç²î£¬·ÖÎöÁËÖÆ±¸Al-X-Pb²ã×´¸´ºÏ²ÄÁϵÄÈÈÁ¦Ñ§¿ÉÐÐÐÔ£¬²¢ÓÅ»¯³öÒ»ÖÖµÚÈý×éÔª¹ý¶ÉÎïÖÊSn£» (1)Based on key parameter function theory, electronegativity difference theory, atomic size difference, thermodynamic feasibility of Al-X-Pb laminated composite preparation was analyzed with optimization of a third transition element Sn; (2) Ó¦ÓÃAl¡¢Sn¡¢PbÈýÔª»ìºÏ¼ª²¼Ë¹×ÔÓÉÄܼÆËã·½·¨£¬Í¨¹ý½¨Á¢MATLABº¯Êý¼ÆËãÄ£ÐÍ£¬ÕÒµ½ÁËÖÆ±¸¹¤ÒÕζȷ¶Î§ÄÚµ±Al¡¢Sn¡¢Pb×é·Öµãº¬Á¿£¨at.%£©Îª£º0.42%£¬73.55%£¬26.03%£¬»ìºÏζÈΪ753.15Kʱ£¬Al¡¢Sn¡¢PbÈýÔª»ìºÏ¼ª²¼Ë¹×ÔÓÉÄÜ×îС,ԼΪ-5.33¡Á104J/mol£¬²¢ÓÃMATLAB»æÍ¼¹¤¾ßsurf()»æ³öÆä¶þÔªº¯ÊýͼÏñ½øÐÐÁËÑéËã,´ÓÀíÂ۵ĽǶÈ֤ʵÁ˲ã×´¸´ºÏÄ£Ð͵ÄÕýÈ·ÐÔ£» (2) Combined application of Gibbs free energy calculation method to Al, Sn, Pb mixture, and MATLAB function model, G of this mixture reach minimum within preparation process temperature when Al, Sn, Pb composition point content (at.%) was 0.42%, 73.55%, 26.03%, respectively, at temperature of 753.15K, which was about -5.33 ¡Á 104J/mol. And the MATLAB graphics tool in surf () was used to draw binary function in order to check. From a theoretical point of view, laminated composite model was confirmed. |

5Â¥2009-07-15 10:29:09














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