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s<sup>\u2212<\/sup><sup>1<\/sup>\uff0c\u968f\u540e\u663e\u8457\u964d\u4f4e\uff0c\u5373\u840e\u7f29\u901f\u7387\u7b26\u5408\u6bd4\u4f8bh\u221dR<sup>\u2212<\/sup><sup>n<\/sup>\uff0c\u5176\u4e2dR\u4e3a\u66f2\u7387\u534a\u5f84\u548cn\u662f\u4e00\u4e2a\u5927\u7684\u5f25\u6563\u7cfb\u6570\u3002\u6839\u636e\u7ecf\u5178\u7684\u66f2\u7387\u9a71\u52a8\u8868\u9762\u6269\u6563\u7406\u8bba\uff0cn\u5e94\u8be5\u7b49\u4e8e3\u3002\u4f46\u52a8\u529b\u5b66\u8499\u7279\u5361\u7f57(kMC)\u6a21\u62df\u663e\u793a\uff0c\u5728\u6e29\u5ea6\u4f4e\u4e8e\u8868\u9762\u7c97\u5316\u8f6c\u578b\u65f6\uff0c\u7531\u4e8e\u9762\u6210\u6838\u7684\u63a7\u5236\u52a8\u529b\u5b66\u4e0d\u80fd\u7528\u8fde\u7eed\u66f2\u7387\u9a71\u52a8\u7684\u8868\u9762\u6269\u6563\u7406\u8bba\u6765\u8ba1\u7b97\uff0c\u6240\u4ee5n\u53ef\u9ad8\u8fbe15\u3002\u4e5f\u53ef\u4ee5\u8868\u660e,\u5f53\u53d8\u5f62\u53d1\u751f\u5728\u5916\u90e8\u673a\u68b0\u5e94\u529b\u03c3\u4e0b\uff0c\u5bf9\u4e8e\u56fa\u5b9a\u5e94\u53d8\u7387\u548c\u6e29\u5ea6\uff0c\u8be5\u884c\u4e3a\u7b26\u5408\u03c3\u221dR<sup>n<\/sup>\uff0c\u6240\u4ee5Coble\u53d8\u5f62\u673a\u5236\u662f\u8d8a\u5c0f\u8d8a\u5f31\u3002\u5f53\u63a8\u79fb\u5851\u6027\u4f5c\u7528\u6d3b\u8dc3\u6781\u5c0f\u4f53\u65f6\uff0c\u5f3a\u70c8\u8d8b\u5411\u4e8e\u03c3\u221dR<sup>-\u03b1<\/sup>(\u03b1\u901a\u5e38\u662f0.5\u52301)\u7684Hall-Petch-like\u6781\u5c0f\u4f53\u5f62\u6210\u7684\u4ea4\u53c9\u662f\u975e\u5e38\u5f31\u7684\u6269\u6563Coble\u53d8\u5f62\u673a\u5236\u03c3\u221dR<sup>n<\/sup>\uff0c\u5f53R\u964d\u4f4e\u65f6\uff0c\u7531\u4e8e\u5927\u7684\u6b63\u6307\u6570n\uff0c\u8be5\u6781\u5c0f\u4f53\u5e94\u8be5\u662f\u5c16\u9510\u548c\u7a81\u51fa\u7684\u3002\u7b80\u5355\u5730\u8bf4\uff0c\u4f5c\u8005\u671f\u671b\u5f3a\u5ea6\u5728\u975e\u5e38\u5c0f\u7684\u6781\u7aef\u60c5\u51b5\u4e0b\u968f\u7740\u5c3a\u5bf8\u7684\u51cf\u5c0f\u800c\u6025\u5267\u4e0b\u964d\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-200372 aligncenter\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/04\/\u56fe\u72475-19.png\" alt=\"\" width=\"700\" height=\"145\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/04\/\u56fe\u72475-19.png 700w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/04\/\u56fe\u72475-19-300x62.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>\u5b9e\u9a8c\u8ba1\u7b97\u8bc1\u660e\u4e86\u8868\u9762\u5f20\u529b\u80fd\u5bf9Coble\u4f2a\u5f39\u6027\u7684\u91cd\u8981\u6027\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u7ed3\u8bba\u7684\u51c6\u786e\u6027\uff0c\u4f5c\u8005\u8fd8\u8fdb\u884c\u4e86\u7406\u8bba\u8ba1\u7b97\u6765\u8bc1\u5b9eCoble\u7684\u4f2a\u5f39\u6027\u3002\u539f\u5b50\u8ba1\u7b97\u6a21\u62dfAg\u7eb3\u7c73\u6676\u4f53\u65ad\u88c2\u7ed3\u7684\u5f62\u72b6\u5f1b\u8c6b\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u770b\u5230\uff0cAg\u7eb3\u7c73\u6676\u4f53\u7684\u5f62\u72b6\u6f14\u53d8\u4e3b\u8981\u662f\u5355\u4e2a\u5438\u9644\u539f\u5b50\u7684\u8fd0\u52a8\uff0c\u5e76\u4e0d\u662f\u539f\u5b50\u94fe\u6216\u8fd9\u539f\u5b50\u5c9b\u8fc7\u7a0b\uff0c\u5f62\u72b6\u7684\u6539\u53d8\u786e\u5b9e\u662f\u901a\u8fc7\u8f83\u5927\u66f2\u9762\u7387\u8868\u9762\u5c42\u7684\u539f\u5b50\u6d88\u878d\u548c\u66f2\u7387\u8f83\u5c0f\u8868\u9762\u5c42\u7684\u751f\u957f\u6765\u5b9e\u73b0\u7684\uff0c\u800c\u8868\u9762\u4ee5\u4e0b\u7684\u4e24\u5c42\u539f\u5b50\u59cb\u7ec8\u4fdd\u6301\u9ad8\u5ea6\u6676\u4f53\u72b6\u6001\uff1b\u5f62\u72b6\u53d8\u5316\u662f\u7531\u7eb3\u7c73\u6676\u4f53\u7684\u975e(111)\u6676\u9762\u4e0a\u7684\u539f\u5b50\u8fdb\u7a0b\u6765\u63a7\u5236\u7684\uff0c\u56e0\u4e3a(111)\u6676\u9762\u4e0a\u7684\u8fdb\u7a0b\u53d1\u751f\u5f97\u66f4\u5feb\u3002\u5355\u539f\u5b50\u5728\u4e0d\u540c\u8868\u9762\u8dc3\u8fc1\u7684\u6d3b\u5316\u80fd\u52bf\u5792\u6392\u5e8f\u4e3a:(110)<sub>out-channel<\/sub>&gt;(001)&gt;(110)<sub>in-channel<\/sub>&gt;(111)\u3002\u5728(111)\u6676\u9762\u7684\u8868\u9762\u4e0a\u4e5f\u89c2\u5bdf\u5230\u539f\u5b50-\u94fe\u6269\u6563\uff0c\u5e76\u4e0e\u5176\u4ed6\u5e73\u9762\u4e00\u8d77\u5f25\u6563\u5728\u8fb9\u7f18\uff0c\u800c\u5728\u5176\u4ed6\u5e73\u9762\u4e0a\u672a\u53d1\u73b0\u539f\u5b50\u94fe\u8fc7\u7a0b\u3002\u4e0a\u5347\u5438\u9644\u539f\u5b50\u7684\u963b\u788d\u58c1\u5792\u9ad8\u4e8e\u5bf9\u4e0b\u884c\u5438\u9644\u539f\u5b50\u7684\u963b\u788d\u58c1\u5792\uff0c\u8fd8\u6709\u5438\u9644\u539f\u5b50\u79bb\u5f00\u62d0\u89d2\u7684\u963b\u788d\u58c1\u5792\u9ad8\u4e8e\u90a3\u4e9b\u63a5\u8fd1\u4e00\u4e2a\u89d2\u843d\u7684\u5438\u9644\u539f\u5b50\u7684\u963b\u788d\u58c1\u5792\u3002\u56e0\u6b64,\u9ad8\u66f2\u7387\u7684\u5730\u533a\u5f80\u5f80\u8d8b\u5411\u4e8e\u5e73\u5730\uff0cGibbs-Thomson\u6548\u5e94\u7684\u8868\u73b0\u5728\u9a71\u52a8\u4f2a\u5f39\u6027\u5316\u5b66\u52bf\u3002\u5f53\u5438\u9644\u539f\u5b50\u5230\u8fbe\u4e0d\u5747\u5300\u8868\u9762\u65f6\uff0c\u4ed6\u4eec\u901a\u8fc7\u4e00\u7cfb\u5217\u8df3\u8dc3\u3001\u4ea4\u6362\u6216\u91d1\u5b57\u5854\u574d\u584c\u7684\u539f\u5b50\u4e8b\u4ef6\u5bf9\u7f3a\u9677\u8868\u9762\u91cd\u65b0\u6392\u5e8f\u3002\u201c\u65e0\u5751\u6d1e\u201d\u7684\u65b0\u8868\u9762\u968f\u540e\u964d\u4f4e\u4e86\u968f\u540e\u6269\u6563\u539f\u5b50\u7684\u969c\u788d\u3002\u7406\u8bba\u6a21\u62df\u8fd8\u8868\u660e\uff0cAg\u7eb3\u7c73\u6676\u4f53\u8868\u9762\u4e3b\u8981\u7531(111)\u548c(001)\u5e73\u9762\u7ec4\u6210\uff0c\u4ee5\u53ca\u5728\u89d2\u843d\u6216\u9732\u53f0\u9644\u8fd1\u7684\u7f3a\u9677\u70b9\u3002\u5728\u7c92\u5b50\u5c16\u7aef\u7684\u6676\u9762\u8868\u9762\u53d1\u73b0\u4e86\u8bb8\u591a\u5438\u9644\u539f\u5b50\u548c\u5c0f\u56e2\u7c07\u3002<\/p>\n<p>\u901a\u8fc7\u5b9a\u91cf\u4f30\u8ba1\u5ba4\u6e29Coble\u8d5d\u5f39\u6027,\u03c4\u7684\u65f6\u95f4\u6807\u5c3a\uff0c\u5e94\u7528\u4e24\u4e2a\u65b0\u5f00\u53d1\u7684\u52a0\u901f\u7406\u8bba\u8ba1\u7b97\u6a21\u62df\u65b9\u6848\u5728(001)\u6676\u9762\u7684\u6269\u6563\uff0c\u8fd9\u53ef\u80fd\u662f\u5f62\u72b6\u8fdb\u5316\u8fc7\u7a0b\u4e2d\u7684\u901f\u63a7\u6b65\u9aa4\u3002\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u5e73\u5747\u8f6c\u53d8\u65f6\u95f4\u7684\u5206\u5e03\u5728\u963f\u4f26\u5c3c\u4e4c\u65af\u56fe\u4e2d\u5448\u73b0\u51fa\u4e00\u6761\u76f4\u7ebf\u3002300~800 K\u4e4b\u95f4\u7684\u6269\u6563\u8fc7\u7a0b\u7684\u65f6\u95f4\u6807\u5c3a\u5728(111)\u6676\u9762\u4e0a\u5dee\u5f02\u4e0d\u5927\uff0c\u4f46\u5728(001)\u6676\u9762\u4e0a\u7684\u539f\u5b50\u6269\u6563\u65f6\u95f4\u6807\u5c3a\u76f8\u5dee50~60\u5e74\uff0c\u8fd9\u662f\u7531\u4e8e\u6d3b\u5316\u80fd\u66f4\u5927\u9020\u6210\u7684\u300210 nm\u94f6\u7c92\u5b50\u7684\u7113\u5728300 K\u548c800 K\u4e4b\u95f4\u5448\u7ebf\u6027\u5173\u7cfb\uff0c\u8bf4\u660e\u6e29\u5ea6\u53d8\u5316\u6ca1\u6709\u53d1\u751f\u76f8\u53d8\u3002\u56e0\u6b64\uff0c\u5927\u591a\u6570\u5728800 K\u65f6\u53d1\u751f\u7684\u6269\u6563\u8fc7\u7a0b\u53ef\u4ee5\u76f4\u63a5\u6309\u7167\u963f\u4f26\u5c3c\u4e4c\u65af\u7684\u65b9\u5f0f\u5916\u63a8\u5230300 K\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8e\u6a21\u62df\u51e0\u4f55\uff0c\u6211\u4eec\u5f97\u51fa\u5f62\u72b6\u8fdb\u5316\u6216\u5f62\u72b6\u677e\u5f1b\u7684\u65f6\u95f4\u5c3a\u5ea6\u5728\u5ba4\u6e29\u4e0b\u5e94\u8be5\u662f\u03c4= 0.01\u223c0.1 s\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-200373 aligncenter\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/04\/\u56fe\u72476-17.png\" alt=\"\" width=\"506\" height=\"405\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/04\/\u56fe\u72476-17.png 506w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/04\/\u56fe\u72476-17-300x240.png 300w\" sizes=\"(max-width: 506px) 100vw, 506px\" \/><\/p>\n<p>Coble\u4f2a\u5f39\u6027\u88ab\u5b9a\u4e49\u4e3a\u4e00\u4e2a\u4f4e\u4e8e\u4eba\u7c7b\u5b66\u89c2\u5bdf\u65f6\u95f4\u5c3a\u5ea6\u7684\u5f62\u72b6\u5f1b\u8c6b\u65f6\u95f4\u03c4\u3002\u6211\u4eec\u7684\u8ba1\u7b97\u7406\u8bba\u6a21\u62df\u8868\u660e\uff0c\u5373\u4f7f\u5728\u6ca1\u6709\u7535\u5b50\u675f\u7684\u60c5\u51b5\u4e0b\uff0c\u5ba4\u6e29\u4e0b10\u7eb3\u7c73\u4ee5\u4e0b\u7684\u94f6\u6676\u4f53\u4e5f\u4f1a\u53d1\u751fCoble\u4f2a\u5f39\u6027\u3002\u8ba1\u7b97\u6a21\u62df\u5668\u4e0a\u6267\u884c\u4e00\u4e2a\u901a\u7528\u7684\u7c7bFCC\u8d35\u91d1\u5c5e\u8868\u660e\u5728T=300 K\u4e0b\u76841728-\u539f\u5b50\u7eb3\u7c73\u6676\u4f53\u7684\u03c4\u7ea6\u4e3a100 s\u3002\u5728\u53e6\u4e00\u4e2a\u5b9e\u9a8c\u4e2d\uff0c\u5728\u4e24\u4e2a\u223c20 nm\u7684Au\u5c16\u7aef\u4e4b\u95f4\u5f62\u6210\u4e86\u4e00\u4e2a\u7eb3\u7c73\u95f4\u9699\uff0c\u7136\u540e\u653e\u7f6e\u56db\u4e2a\u6708\uff0c\u4e4b\u540e\u53d1\u73b0\u7eb3\u7c73\u95f4\u9699\u660e\u663e\u6269\u5927\u4e86\uff0c\u6700\u5927\u66f2\u7387\u7684\u4f4d\u7f6e\u5df2\u7ecf\u88ab\u62b9\u5e73\u4e86\u3002\u9274\u4e8eT<sub>melt<\/sub>(Au) = 1337 k &gt; T<sub>melt<\/sub>(Ag) = 1235 k, 10 nm\u4ee5\u4e0b\u7684Ag\u7eb3\u7c73\u6676\u4f53\u5e94\u8be5\u62e5\u6709\u6bd420 nm\u7684Au\u66f4\u5c0f\u7684\u03c4\u3002\u56e0\u6b64\uff0c\u8868\u9762\u6269\u6563\u786e\u5b9e\u4e25\u91cd\u5a01\u80c1\u4e86\u4f4e\u4e8e10\u7eb3\u7c73\u5c3a\u5ea6\u91d1\u5c5e\u7eb3\u7c73\u6676\u4f53\u5728\u5ba4\u6e29\u4e0b\u7684\u5f62\u72b6\u7a33\u5b9a\u6027\uff0c\u5373\u4f7f\u62e5\u6709\u76f8\u5bf9\u8f83\u9ad8\u7194\u70b9Ag\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n<p>\u6240\u4ee510 nm\u4ee5\u4e0b\u7684Ag\u7eb3\u7c73\u6676\u4f53\u7684\u53d8\u5316\u5c5e\u4e8eCoble\u4f2a\u5f39\u6027\u5f62\u53d8\u800c\u4e0d\u662f\u5851\u6027\u5f62\u53d8\uff0c\u8fd9\u5bf9\u63a2\u7a76\u5176\u4ed6\u5c0f\u5c3a\u5ea6\u7684\u91d1\u5c5e\u9897\u7c92\u7684\u53d8\u5316\u4e5f\u662f\u63d0\u4f9b\u4e86\u4e00\u5b9a\u7684\u53c2\u8003\u610f\u4e49\uff0c\u5bf9\u63a7\u5236\u7eb3\u7c73\u7535\u5b50\u5668\u4ef6\u7684\u7a33\u5b9a\u6027\u548c\u5bff\u547d\u53d1\u5c55\u4e86\u4e00\u4e2a\u65b0\u7684\u7814\u7a76\u65b9\u5411\u3002<\/p>\n<p>\u6587\u732e\u6765\u6e90\uff1aJun Sun , Longbing He , Yu-Chieh Lo , Tao Xu , Hengchang Bi , Litao Sun , Ze Zhang 5 ,Scott X. Mao and Ju Li et al. Liquid-like pseudoelasticity of sub-10-nm crystalline silver particles. Nature Materials 13, 1007 (2014).<\/p>\n<p>\u6587\u7ae0\u94fe\u63a5\uff1ahttps:\/\/www.nature.com\/articles\/nmat4105<\/p>\n<p>\u672c\u6587\u7531LLLucia\u4f9b\u7a3f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u77e5\u9053\u5ba4\u6e29\u4e0b\u7684\u91d1\u5c5e\u94f6\u90fd\u662f\u4ee5\u56fa\u5b9a\u7684\u5f62\u6001\u5b58\u5728\uff0c\u90a3\u50cf\u6db2\u6ef4\u4e00\u6837\u7684\u94f6\u662f\u5426\u5b58\u5728\u5462\uff1f\u4e8b\u5b9e\u8bc1\u660e\u4e16\u754c\u771f\u662f\u65e0\u5947\u4e0d\u6709\uff0c\u4ece\u672a\u52aa\u529b\u53bb\u63a2\u7d22\u7684\u8bdd\uff0c\u4f60\u5c31\u4e0d\u80fd\u53d1\u73b0\u4e0d\u4e00\u6837\u7684\u4e16\u754c\u7f8e\u3002\u5f53\u7136\uff0c\u53d1\u73b0\u7f8e\u7684&#8230;<\/p>\n","protected":false},"author":10213,"featured_media":200368,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[],"class_list":["post-200367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jiedu"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/200367"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/10213"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=200367"}],"version-history":[{"count":2,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/200367\/revisions"}],"predecessor-version":[{"id":200779,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/200367\/revisions\/200779"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/media\/200368"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=200367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=200367"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=200367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}