{"id":140077,"date":"2018-05-28T14:00:07","date_gmt":"2018-05-28T06:00:07","guid":{"rendered":"\/\/m.iemloyee.com\/?p=140077"},"modified":"2018-05-27T16:38:57","modified_gmt":"2018-05-27T08:38:57","slug":"%e7%be%8e%e5%9b%bd%e7%ba%bd%e7%ba%a6%e5%b7%9e%e7%ab%8b%e5%a4%a7%e5%ad%a6acta-mater-%ef%bc%9acu%ef%bc%88au%ef%bc%89%e5%90%88%e9%87%91%e8%a1%a8%e9%9d%a2%e5%81%8f%e6%9e%90%e5%bc%95%e8%b5%b7%e7%9a%84","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=140077","title":{"rendered":"\u7f8e\u56fd\u7ebd\u7ea6\u5dde\u7acb\u5927\u5b66Acta Mater.\uff1aCu\uff08Au\uff09\u5408\u91d1\u8868\u9762\u504f\u6790\u5f15\u8d77\u7684\u6709\u5e8f-\u65e0\u5e8f\u8f6c\u53d8"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

\u8868\u9762\u504f\u6790\u662f\u591a\u7ec4\u5206\u4f53\u7cfb\u4e2d\u666e\u904d\u5b58\u5728\u7684\u73b0\u8c61\uff0c\u5373\u4ea7\u751f\u548c\u5b83\u4eec\u81ea\u5df1\u4e00\u7ec4\u6027\u8d28\u7684\u3001\u5177\u6709\u79bb\u6563\u7ec4\u5206\u7684\u6750\u6599\u3002\u8868\u9762\u504f\u6790\u901a\u5e38\u662f\u7531\u70ed\u529b\u5b66\u9a71\u52a8\uff0c\u504f\u6790\u7684\u6027\u8d28\u53d6\u51b3\u4e8e\u5468\u56f4\u73af\u5883\u3002\u5728\u771f\u7a7a\u6216\u975e\u53cd\u5e94\u6761\u4ef6\u4e0b\uff0c\u5177\u6709\u8f83\u4f4e\u8868\u9762\u80fd\u7684\u5143\u7d20\u4e0e\u5916\u8868\u9762\u5206\u79bb\u3002\u53cd\u5e94\u73af\u5883\u4e2d\uff0c\u6c14\u4f53\u79cd\u7c7b\u76f8\u4e92\u4f5c\u7528\u6700\u5f3a\u70c8\u7684\u5408\u91d1\u6210\u5206\u8d8b\u4e8e\u5728\u8868\u9762\u5bcc\u96c6\u3002\u7814\u7a76\u8868\u9762\u504f\u6790\u662f\u5982\u4f55\u5f15\u8d77\u7ed3\u6784\u548c\u6210\u5206\u53d8\u5316\u7684\uff0c\u5bf9\u591a\u7ec4\u5206\u6750\u6599\u7684\u5fae\u89c2\u548c\u5b8f\u89c2\u6027\u80fd\u90fd\u6709\u91cd\u8981\u5f71\u54cd\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u7f8e\u56fd\u7ebd\u7ea6\u5dde\u7acb\u5927\u5b66\u5bbe\u6c49\u987f\u5206\u6821\u7684Guangwen Zhou<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u4f7f\u7528\u539f\u4f4d\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c\u548c\u539f\u5b50\u6a21\u62df\uff0c\u7814\u7a76\u4e86\u8fd8\u539f\u548c\u6c27\u5316\u73af\u5883\u4e2d\uff0cCu\uff08Au\uff09\u56fa\u6eb6\u4f53\u7684\u8868\u9762\u548c\u4e9a\u8868\u9762\u533a\u57df\u4e2d\uff0c\u539f\u5b50\u504f\u6790\u8bf1\u5bfc\u7ed3\u6784\u53d8\u5316\u3002\u5728H2<\/sub>\u6c14\u6c1b\u4e2d\uff0cAu\u504f\u6790\u8bf1\u5bfc\u3001\u5f62\u6210\u5177\u6709L10\u7ec8\u6b62\u8868\u9762\u5c42\u7684\u6709\u5e8f\u53cc\u539f\u5b50\u5c42\u539a\u5408\u91d1\u8868\u9762\u3002\u5207\u6362\u5230O2<\/sub>\u6c14\u6c1b\uff0c\u6700\u5916\u5c42\u7684\u8868\u9762\u53d1\u5c55\u4e3aAumissing\u884c\u91cd\u5efa\uff0c\u540c\u65f6\u7b2c\u4e8c\u5c42\u5185\u539f\u5b50\u4ea4\u6362\u53d1\u751f\u6709\u5e8f-\u65e0\u5e8f\u8f6c\u53d8\u3002\u5316\u5b66\u65e0\u5e8f\u5316\u7ed3\u6784\u4f20\u64ad\u5230\u6700\u5916\u8868\u9762\uff0c\u6c27\u5438\u9644\u8bf1\u5bfc\u7684Cu\u8868\u9762\u504f\u6790\u3002\u5c06\u91cd\u5efaL10\u7f3a\u5931\u884c\u8f6c\u6362\u6210\u975e\u91cd\u5efa\u7684\u542b\u6c27\u8868\u9762\u3002\u672c\u6587\u63d0\u4f9b\u4e86\u5408\u91d1\u54cd\u5e94\u4e8e\u73af\u5883\u523a\u6fc0\u7684\u8868\u9762\u548c\u6b21\u8868\u9762\u6f14\u53d8\u7684\u673a\u68b0\u7ec6\u8282\uff0c\u540c\u65f6\u63d0\u4f9b\u4e86\u76f8\u5173\u7684\u89c2\u5bdf\u6280\u672f\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201c<\/strong>Segregation induced order-disorder transition in Cu(Au) surface alloys<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Acta Materialia<\/strong>\u4e0a\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe<\/strong> 1 Cu-10 at.% Au<\/strong>\u8584\u819c\u6700\u5916\u5c42\uff08<\/strong>100<\/strong>\uff09\u6676\u9762\u7684\u7ed3\u6784\u8868\u5f81<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09Cu-10 at.% Au\u8584\u819c\u6700\u5916\u5c42\uff08100\uff09\u6676\u9762\u4e2d\u6709\u5e8f\u8d85\u6676\u683c\u7ed3\u6784\u7684\u5f62\u6210\u7684HRTEM\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff09[001]\u65b9\u5411\uff0cCuAu\uff08L10\uff09\u548cCu3<\/sub>Au\uff08L12\uff09\u539f\u5b50\u7ed3\u6784\u7684\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08c\uff09\u6709\u5e8f\u5408\u91d1\u8868\u9762\u7684\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08d\uff09\u57fa\u4e8e\uff08c\uff09\u6a21\u62df\u7684\uff08100\uff09\u6676\u4f53\u9762\u7684HRTEM\u56fe\u50cf\u3002<\/p>\n

\u56fe<\/strong> 2 <\/strong>\u968f\u65f6\u95f4\u53d8\u5316\u7684<\/strong>Cu-Au<\/strong>\u8868\u9762\u5408\u91d1\u4e2d\uff0c\u6c27\u5438\u9644\u8bf1\u5bfc\u7684\u6709\u5e8f<\/strong>–<\/strong>\u65e0\u5e8f\u8f6c\u53d8\u7684<\/strong>HRTEM<\/strong>\u56fe<\/strong><\/p>\n

\"\"<\/strong><\/p>\n

\uff08a\uff09\u5728H2<\/sub>\u6c14\u6d41\u4e2d\uff0cAu\u504f\u6790\u8bf1\u5bfc\u7684\u6709\u5e8f\u5408\u91d1\u8868\u9762\u7684HRTEM\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff09O2<\/sub>\u5bfc\u81f4\u6700\u4e0a\u9762\u7684\u8868\u9762\u7f3a\u5931\u884c\u91cd\u6784\uff0c\u5176\u4e2d\u6bcf\u7b2c\u56db\u884c\u539f\u5b50\u4e22\u5931\uff0c\u5728\u6700\u4e0a\u9762\u7684\u8868\u9762\u5904\u5f15\u8d77\u6709\u5e8f\u2192\u65e0\u5e8f\u8f6c\u53d8HRTEM\u56fe\uff1b<\/p>\n

\uff08c\uff09\u6700\u5916\u5c42\u6709\u5e8f\u2192\u65e0\u5e8f\u8f6c\u53d8\u7684HRTEM\u56fe\uff1b<\/p>\n

\uff08d\uff09\u586b\u5145\u6240\u6709\u8868\u9762\u7a7a\u4f4d\u884c\uff0c\u6700\u9876\u5c42\u4e2d\u7684\u987a\u5e8f\u2192\u65e0\u5e8f\u8f6c\u6362\u7684HTTEM\u56fe\u3002<\/p>\n

\u56fe<\/strong> 3 L10<\/strong>\u6709\u5e8f\u8868\u9762\u5408\u91d1\u7684<\/strong>DFT<\/strong>\u6a21\u62df<\/strong>O2<\/sub><\/strong>\u5438\u9644\u8bf1\u5bfc\u7ed3\u6784\u91cd\u7ec4\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u6c27\u5316\u8868\u9762\u7684DFT\u4f18\u5316\u7ed3\u6784\u56fe\uff1b<\/p>\n

\uff08b\uff09DFT\u4f18\u5316\u542b\u6c27\u7f3a\u5931\u884c\u91cd\u6784\u8868\u9762\u7684\uff08100\uff09\u8868\u9762\u4e0a\uff0c\u7f3a\u5931Cu\u7684[001]\u6676\u9762\u56fe\uff1b<\/p>\n

\uff08c\uff09\u5728\uff08100\uff09\u8868\u9762[001]\u4e0a\uff0c\u6bcf\u7f3a\u5c114\u884cAu\u7684\u7f3a\u6c27\u884c\u91cd\u5efa\u8868\u9762\u7684DFT\u4f18\u5316\u7ed3\u6784\u56fe\u3002<\/p>\n

\u56fe<\/strong> 4 <\/strong>\u4e9a\u8868\u9762\u533a\u57df\u5316\u5b66\u65e0\u5e8f\u7684<\/strong>DFT<\/strong>\uff0c<\/strong>Nebula<\/strong>\u548c<\/strong>KMC<\/strong>\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u7b2c\u4e8c\u5c42\u548c\u7b2c\u4e09\u5c42\u5316\u5b66\u4e0a\u4e0d\u540c\u7684\u7a7a\u4f4d\u56fe\uff08Au2_1\uff0cCu2_1\uff0cCu2_2\u548cCu3_1\u8868\u793aAu\u548cCu\u7a7a\u4f4d\u70b9\uff09\uff1b<\/p>\n

\uff08b\uff09NEB\u8ba1\u7b97\u5939\u5c42\u548c\u5c42\u5185\u539f\u5b50\u4ea4\u6362\u7684\u6269\u6563\u969c\u788d\u7684\u76f4\u65b9\u56fe\u3002\uff1b<\/p>\n

\uff08c-d\uff09\u5728KMC\u6a21\u62df\u524d\u540e\u7684\u7b2c\u4e8c\u5c42\u7684\u6295\u5f71\u56fe\u3002\uff08\u63d2\u56fe\u662f[001]\u65b9\u5411\u5e73\u884c\u4e8e\u7535\u5b50\u675f\u65b9\u5411\u7b2c\u4e8c\u5c42\u7684\u6a21\u62dfHRTEM\u56fe\u50cf\uff0c\u5982\u7eff\u8272\u7bad\u5934\u6240\u793a\uff09\u3002<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u672c\u6587\u7814\u7a76\u4e86O2<\/sub>\u5438\u9644\u5728Cu-10 at.\uff05Au\u56fa\u6eb6\u4f53\u7684\u8868\u9762\u548c\u4e9a\u8868\u9762\u533a\u57df\uff0c\u5f15\u8d77\u6709\u5e8f-\u65e0\u5e8f\u8f6c\u53d8\u8fc7\u7a0b\u3002\u6bcf\u4e2a\u539f\u5b50\u5c42\u4e2d\uff0c\u53d1\u751f\u4e0d\u540c\u7684\u8f6c\u6362\u8def\u5f84\u548c\u673a\u5236\u3002\u5728H2<\/sub>\u6c14\u6c1b\u4e2d\uff0cAu\u504f\u6790\u8bf1\u5bfcL10\u7ec8\u6b62\u8868\u9762\u7ed3\u6784\u7684\u4e24\u539f\u5b50\u5c42\u539a\u6709\u5e8fCu-Au\u8868\u9762\u5408\u91d1\u5f62\u6210\u3002\u5207\u6362\u5230O2<\/sub>\u6c14\u6c1b\u65f6\uff0c\u6700\u5916\u5c42\u8868\u9762\u53d1\u5c55\u6210Au\u7f3a\u5931\u884c\u91cd\u5efa\uff0c\u540c\u65f6\u5c42\u5185\u539f\u5b50\u4ea4\u6362\u7b2c\u4e8c\u5c42\u4e2d\uff0c\u53d1\u751f\u6709\u5e8f-\u65e0\u5e8f\u8f6c\u6362\u3002\u8fd9\u79cd\u5316\u5b66\u65e0\u5e8f\u8f6c\u53d8\uff0c\u7531O2<\/sub>\u5438\u9644\u5f15\u8d77\u7684Cu\u8868\u9762\u504f\u6790\u7e41\u884d\u5230\u6700\u5916\u8868\u9762\u3002\u8fd9\u5bfc\u81f4\u4e86L10\u7f3a\u5931\u884c\u91cd\u5efa\u5230\uff081\u00d71\uff09\u5145O2<\/sub>\u8868\u9762\u7684\u8f6c\u53d8\u3002\u672c\u6587\u63d0\u4f9b\u4e86\u54cd\u5e94\u73af\u5883\u523a\u6fc0\u7684\u8868\u9762\u548c\u4e9a\u8868\u9762\u7684\u52a8\u6001\u6f14\u5316\u7684\u673a\u68b0\u7ec6\u8282\u3002\u672c\u6587\u7684\u7814\u7a76\u65b9\u6cd5\u5bf9\u4e8e\u5404\u79cd\u6750\u6599\u4f53\u7cfb\uff0c\u6027\u80fd\u548c\u53cd\u5e94\uff0c\u5305\u62ec\u51b6\u91d1\u5b66\u3001\u7eb3\u7c73\u7ed3\u6784\u5408\u6210\u3001\u8150\u8680\u3001\u6c27\u5316\/\u8fd8\u539f\u548c\u975e\u5747\u76f8\u50ac\u5316\uff0c\u90fd\u5177\u6709\u76f8\u5f53\u91cd\u8981\u7684\u5b9e\u9645\u610f\u4e49\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Segregation induced order-disorder transition in Cu(Au) surface alloys<\/a><\/strong>\uff08Acta Materialia, 2018, DOI: 10.1016\/j.actamat. 2018.05.040\uff09\u3002<\/p>\n

\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com<\/a>\u3002<\/p>\n

\u6750\u6599\u4eba\u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1acailiaokefu\u3002<\/p>\n

\u6750\u6599\u725b\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n

\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/strong>\u6d4b\u8bd5\u8c37<\/strong><\/a>\uff01<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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