{"id":121584,"date":"2018-01-17T06:30:54","date_gmt":"2018-01-16T22:30:54","guid":{"rendered":"\/\/m.iemloyee.com\/?p=121584"},"modified":"2018-01-16T20:49:35","modified_gmt":"2018-01-16T12:49:35","slug":"%e5%90%8c%e6%b5%8e%e5%a4%a7%e5%ad%a6adv-mater-%e9%ab%98%e5%8e%8b%e7%94%b5%e6%80%a7%e8%83%bd%e6%97%a0%e9%93%85knn%e5%9f%ba%e7%bb%87%e6%9e%84%e9%99%b6%e7%93%b7","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=121584","title":{"rendered":"\u540c\u6d4e\u5927\u5b66Adv. Mater. : \u9ad8\u538b\u7535\u6027\u80fd\u65e0\u94c5KNN\u57fa\u7ec7\u6784\u9676\u74f7"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u538b\u7535\u6750\u6599\u662f\u4e00\u79cd\u5177\u6709\u7535\u80fd\u548c\u673a\u68b0\u80fd\u76f8\u4e92\u8f6c\u6362\u7684\u529f\u80fd\u6750\u6599\u3002\u538b\u7535\u9676\u74f7\u7531\u4e8e\u540c\u65f6\u5177\u6709\u6b63\u538b\u7535\u6548\u5e94\uff08\u5373\u538b\u7535\u9676\u74f7\u5728\u53d7\u5230\u5916\u529b\u4f5c\u7528\u65f6\u4f1a\u5728\u8868\u9762\u4ea7\u751f\u7535\u8377\uff09\u548c\u9006\u538b\u7535\u6548\u5e94\uff08\u5373\u538b\u7535\u9676\u74f7\u5728\u5916\u7535\u573a\u4f5c\u7528\u4e0b\u4f1a\u4ea7\u751f\u5f62\u53d8\uff09\u800c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6362\u80fd\u5668\u3001\u4f20\u611f\u5668\u3001\u9a71\u52a8\u5668\u548c\u80fd\u91cf\u6536\u96c6\u5668\u7b49\u7535\u5b50\u5668\u4ef6\u4e2d\u3002\u538b\u7535\u6750\u6599\u7684\u5e94\u7528\u904d\u53ca\u5f53\u4eca\u793e\u4f1a\u65e5\u5e38\u751f\u6d3b\u7684\u6bcf\u4e2a\u89d2\u843d\uff0c\u4eba\u4eec\u51e0\u4e4e\u6bcf\u5929\u90fd\u6709\u53ef\u80fd\u6d89\u53ca\u5230\u538b\u7535\u6750\u6599\u7684\u5e94\u7528\u3002\u6b8a\u4e0d\u77e5\u5728\u65e5\u5e38\u751f\u6d3b\u4e2d\u5f53\u4f60\u5728\u70b9\u71c3\u9999\u70df\u3001\u7164\u6c14\u7076\u6216\u8005\u70ed\u6c34\u5668\u65f6\uff0c\u5c31\u6709\u4e00\u79cd\u538b\u7535\u9676\u74f7\u5df2\u6084\u6084\u5730\u4e3a\u4f60\u670d\u52a1\u4e86\u4e00\u6b21\u3002\u538b\u7535\u9676\u74f7\u4e0d\u4ec5\u5728\u5de5\u4e1a\u548c\u6c11\u7528\u4ea7\u54c1\u4e0a\u7528\u9014\u5e7f\u6cdb\uff0c\u5728\u519b\u4e8b\u4e0a\u4e5f\u6709\u5927\u91cf\u7684\u5e94\u7528\u3002\u5728\u8fc7\u53bb\u51e0\u5341\u5e74\u4e2d\uff0c\u94c5\u57fa\u538b\u7535\u6750\u6599\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u538b\u7535\u6027\u80fd\u5360\u636e\u7740\u5e02\u573a\u7684\u4e3b\u8981\u4efd\u989d\uff0c\u7136\u800c\u4e3a\u4e86\u4fdd\u62a4\u73af\u5883\u4ee5\u53ca\u6ee1\u8db3\u4eba\u7c7b\u7684\u53ef\u6301\u7eed\u53d1\u5c55\u7406\u5ff5\uff0c\u63a2\u7d22\u5177\u6709\u9ad8\u6027\u80fd\u7684\u65e0\u94c5\u538b\u7535\u6750\u6599\u6210\u4e3a\u8be5\u9886\u57df\u8feb\u5207\u9700\u8981\u89e3\u51b3\u7684\u8bfe\u9898\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u540c\u6d4e\u5927\u5b66\u7fdf\u7ee7\u536b\u6559\u6388\uff0c\u6c88\u6ce2\u526f\u6559\u6388\u4e0e<\/strong>\u6fb3\u5927\u5229\u4e9a\u5367\u9f99\u5c97\u5927\u5b66\u5f20\u6811\u541b\u6559\u6388<\/strong>\u5408\u4f5c\uff0c\u901a\u8fc7\u91c7\u7528\u7ec7\u6784\u5316\u5de5\u827a\u4ee5\u53ca\u5bf9\u94cc\u9178\u94be\u94a0\uff08KNN\uff09\u57fa\u538b\u7535\u9676\u74f7\u6210\u5206\u7684\u8bbe\u8ba1\u548c\u70e7\u7ed3\u5de5\u827a\u7684\u4f18\u5316\u5236\u5907\u51fa\u5177\u6709\u9ad8\u7ec7\u6784\u5ea6\u7684KNN\u57fa\u538b\u7535\u9676\u74f7\uff0c\u5176\u538b\u7535\u7cfb\u6570d<\/em>33<\/sub>\u9ad8\u8fbe~700 pC\/N, \u673a\u7535\u8026\u5408\u7cfb\u6570k<\/em>p<\/sub>\u4e3a76%\uff0c\u7535\u81f4\u5e94\u53d8S<\/em>~0.3%\uff0c\u540c\u65f6\u8be5\u6750\u6599\u5177\u6709\u9ad8\u7684\u5c45\u91cc\u6e29\u5ea6\u548c\u76f8\u5bf9\u4f18\u5f02\u7684\u7535\/\u70ed\u6027\u80fd\u7a33\u5b9a\u6027\u3002\u8be5\u7814\u7a76\u53d1\u73b0\u9ad8\u7684\u538b\u7535\u6027\u80fd\u4e3b\u8981\u6765\u6e90\u4e8e\u4e09\u4e2a\u65b9\u9762\uff1a\uff08\u2160\uff09\u5145\u5206\u5229\u7528\u538b\u7535\u6676\u4f53\u7684\u5404\u5411\u5f02\u6027\u8bbe\u8ba1\u4e86\u5177\u6709<001>\u53d6\u5411\u7684\u6b63\u4ea4\uff08O\uff09\u548c\u83f1\u65b9\uff08R\uff09\u76f8\u5171\u5b58\u7684\u6676\u4f53\u7ed3\u6784\uff0c\u8be5\u7ed3\u6784\u5177\u6709\u6700\u5408\u9002\u7684\u5de5\u7a0b\u7574\u7ed3\u6784\uff0c\u5373\u8f83\u591a\u7684\u80fd\u91cf\u7b49\u4ef7\u7684\u6781\u5316\u77e2\u91cf\uff08P<\/em>s<\/sub>\uff09\u6570\u4ee5\u53ca\u6781\u5316\u77e2\u91cf\u548c\u5916\u7535\u573a\u65b9\u5411\u8f83\u5c0f\u7684\u5939\u89d2\u03b8<\/em>\u3002\uff08\u2161\uff09\u7ec7\u6784\u9676\u74f7\u5728\u5916\u7535\u538b\u4f5c\u7528\u4e0b\u4ea7\u751f\u7684\u9ad8\u7684\u6676\u683c\u7578\u53d8\u662f\u538b\u7535\u6027\u80fd\u63d0\u9ad8\u7684\u672c\u5f81\u8d21\u732e\u3002\u53e6\u5916\uff0c\u6781\u5316\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u65b0\u7684\u4e2d\u95f4\u76f8\u6709\u5229\u4e8e\u6781\u5316\u8fc7\u7a0b\u7684\u5b9e\u73b0\u3002\uff08\u2162\uff09TEM\u548cPFM\u8868\u5f81\u7684\u7ed3\u679c\u53d1\u73b0\u7ec7\u6784\u9676\u74f7\u4e2d\u7531\u4e8e\u6a21\u677f\u6676\u7c92\u7684\u5f15\u5165\u5bfc\u81f4\u7684\u7535\u7574\u5c3a\u5bf8\u7684\u51cf\u5c0f\uff08\u7eb3\u7c73\u7574\uff09\u6709\u5229\u4e8e\u7574\u58c1\u5728\u5916\u7535\u573a\u4f5c\u7528\u4e0b\u7684\u79fb\u52a8\u3002\u8be5\u7814\u7a76\u6210\u679c\u4e3a\u9ad8\u6027\u80fd\u65e0\u94c5\u538b\u7535\u9676\u74f7\u7684\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u6307\u5bfc\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cUltrahigh Piezoelectric Properties in Textured (K,Na)NbO3<\/sub>-Based Lead-Free Ceramics\u201d\u4e3a\u9898\u53d1\u8868\u5728\u4e86Advanced Materials\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe<\/strong>1. <\/strong>\u4e0d\u540c\u6a21\u677f\u542b\u91cf<\/strong>KNN<\/strong>\u57fa\u9676\u74f7\u7684\u76f8\u7ed3\u6784\u548c\u6027\u80fd<\/strong><\/p>\n (a) \u4e0d\u540cNN\u6a21\u677f\u542b\u91cf\u7684KNN\u57fa\u538b\u7535\u9676\u74f7\u7684\u5ba4\u6e29XRD\u56fe\uff1b<\/p>\n (b) \u4e0d\u540cNN\u6a21\u677f\u542b\u91cf\u7684KNN\u57fa\u538b\u7535\u9676\u74f7\u7684\u7ec7\u6784\u5ea6F,\u538b\u7535\u7cfb\u6570d33<\/sub>\u53ca\u5e73\u9762\u6a21\u5f0f\u673a\u7535\u8026\u5408\u7cfb\u6570kp<\/sub>\u7684\u5bf9\u6bd4\uff1b<\/p>\n (c) KNN-3T \u538b\u7535\u9676\u74f7\u7684\u91cd\u8981\u53c2\u6570d<\/em>33<\/sub>, k<\/em>p<\/sub>, T<\/em>c<\/sub>\u548c\u5176\u4ed6\u5178\u578b\u7684\u65e0\u94c5\u538b\u7535\u9676\u74f7\u4f53\u7cfb\u53ca\u94c5\u57fa\u538b\u7535\u9676\u74f7\u7684\u5bf9\u6bd4\uff1b<\/p>\n \u56fe<\/strong>2. <\/strong>\u4e0d\u540c\u6a21\u677f\u542b\u91cf\u7684\u9676\u74f7\u7684\u94c1\u7535\u548c\u7535\u81f4\u5e94\u53d8\u6027\u80fd<\/strong><\/p>\n (a) \u4e0d\u540cNN\u6a21\u677f\u542b\u91cf\u7684KNN\u57fa\u9676\u74f7\u7684P<\/em>–E<\/em>\u6ede\u56de\u66f2\u7ebf\uff1b<\/p>\n (b) \u4e0d\u540cNN\u6a21\u677f\u542b\u91cf\u7684KNN\u57fa\u9676\u74f7\u7684\u5355\u5411\u7535\u81f4\u5e94\u53d8\u66f2\u7ebf\uff1b<\/p>\n (c) \u538b\u7535\u9676\u74f7\u7684d<\/em>33<\/sub>\u4e0e\u76f4\u6d41\u6781\u5316\u7535\u573a\u5f3a\u5ea6\u7684\u5173\u7cfb\uff1b<\/p>\n (d) \u4f4e\u7684\u4ea4\u6d41\u7535\u573a\u5f3a\u5ea6\u548c\u538b\u7535\u7cfb\u6570\u7684\u5173\u7cfb\uff1b<\/p>\n \u56fe<\/strong>3. <\/strong>\u968f\u673a\u53d6\u5411\u548c\u7ec7\u6784\u9676\u74f7\u7684\u539f\u4f4d\u540c\u6b65\u8f90\u5c04<\/strong>XRD<\/strong>\u5206\u6790<\/strong><\/p>\n (a, b) \u968f\u673a\u53d6\u5411KNN-0T\u548c\u7ec7\u6784\u5316KNN-3T\u9676\u74f7\u7684(001)\/(100)\u548c(002)\/(200)\u6676\u9762\u7684\u539f\u4f4d\u540c\u6b65\u8f90\u5c04XRD\u56fe\u8c31\uff1b<\/p>\n (c) KNN-0T\u548cKNN-3T\u6837\u54c1\u7684(001)\u6676\u9762\u95f4\u8ddd\u53ca\u6676\u683c\u7578\u53d8\u5ea6\u968f\u6781\u5316\u7535\u573a\u5f3a\u5ea6\u7684\u53d8\u5316\uff1b<\/p>\n (d) \u5916\u7535\u573a\u4f5c\u7528\u4e0b\u4ece\u83f1\u65b9\u76f8\u7684[111]\u81ea\u53d1\u6781\u5316\u77e2\u91cf\u5230\u6b63\u4ea4\u76f8\u7684[101]\u81ea\u53d1\u6781\u5316\u77e2\u91cf\u7684\u53ef\u80fd\u7684\u6781\u5316\u7ffb\u8f6c\u8def\u5f84\u793a\u610f\u56fe\uff1b<\/p>\n \u56fe<\/strong>4. <\/strong>\u7ec7\u6784\u9676\u74f7\u7684<\/strong>TEM<\/strong>\u5206\u6790<\/strong><\/p>\n (a) \u7ec7\u6784\u9676\u74f7\u7684\u6676\u7c92\u7684\u4f4e\u500d\u7387TEM\u660e\u573a\u50cf\uff1b<\/p>\n (b-d) \u9676\u74f7\u4e2d\u4e0d\u540c\u6676\u7c92\u7684\u9009\u533a\u7535\u5b50\u884d\u5c04\u56fe\u8c31\uff1b<\/p>\n (e-f) \u4e0d\u540c\u7574\u7ed3\u6784\u4e2d\u5f97\u5230\u7684\u6c47\u805a\u675f\u7535\u5b50\u884d\u5c04\uff08CBED\uff09\u56fe\u8c31;<\/p>\n (g) \u7ec7\u6784\u9676\u74f7\u7684\u9ad8\u5206\u8fa8\u6676\u683c\u6761\u7eb9\u56fe\uff1b<\/p>\n (h-l) \u968f\u673a\u53d6\u5411\u548c\u7ec7\u6784\u9676\u74f7\u7684\u7574\u7ed3\u6784\u7684\u5bf9\u6bd4\uff1b<\/p>\n \u56fe<\/strong>5. <\/strong>\u968f\u673a\u53d6\u5411\u548c\u7ec7\u6784\u9676\u74f7\u7684<\/strong>PFM<\/strong>\u8868\u5f81<\/strong><\/p>\n (a-c) \u968f\u673a\u53d6\u5411KNN-0T\u9676\u74f7\u7684Phase\u56fe\u53ca\u7535\u7574\u5728\u76f4\u6d41\u7535\u538b\u4e0b\u7684\u7ffb\u8f6c\u56fe\uff1b<\/p>\n (d-f) \u7ec7\u6784KNN-3T\u9676\u74f7\u7684Phase\u56fe\u53ca\u7535\u7574\u5728\u76f4\u6d41\u7535\u538b\u4e0b\u7684\u7ffb\u8f6c\u56fe\uff1b<\/p>\n (g-h) KNN-0T\u548cKNN-3T\u9676\u74f7\u7684PFM\u76f8\u4f4d-\u7535\u538b\u548c\u632f\u5e45-\u7535\u538b\u56fe\uff1b<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u8be5\u7814\u7a76\u5229\u7528\u4e24\u6b65\u7194\u76d0\u6cd5\u5236\u5907\u7684\u7247\u72b6\u94cc\u9178\u94a0NN\u4f5c\u4e3a\u6a21\u677f\uff0c\u901a\u8fc7\u6a21\u677f\u542b\u91cf\u53ca\u70e7\u7ed3\u5de5\u827a\u7684\u4f18\u5316\u5236\u5907\u4e86\u9ad8<00l<\/em>>c<\/sub>\u53d6\u5411\u7684\u7ec7\u6784\u5316KNN\u57fa\u538b\u7535\u9676\u74f7\u3002\u5728KNN-3T\u538b\u7535\u9676\u74f7\u4e2d\u83b7\u5f97\u4e86\u9ad8\u7684\u538b\u7535\u6027\u80fd\uff0c\u5176\u538b\u7535\u7cfb\u6570d<\/em>33<\/sub>~700 pC\/N, \u7535\u81f4\u5e94\u53d8S<\/em>~0.3%\uff0c\u5c45\u91cc\u6e29\u5ea6T<\/em>c<\/sub>~242 o<\/sup>C\u3002\u9ad8\u7684\u538b\u7535\u6027\u80fd\u4e3b\u8981\u6765\u6e90\u4e8eR-O\u76f8\u6210\u5206\u7684<00l<\/em>>\u53d6\u5411\u7684\u6676\u4f53\u7684\u5408\u9002\u7684\u5de5\u7a0b\u7574\u7ed3\u6784\u3002\u53e6\u5916\uff0c\u539f\u4f4d\u540c\u6b65\u8f90\u5c04XRD\u7814\u7a76\u8868\u660e\u5927\u7684\u6676\u683c\u7578\u53d8\u5ea6\u662f\u538b\u7535\u6027\u80fd\u63d0\u9ad8\u7684\u672c\u5f81\u8d21\u732e\uff0c\u800c\u6781\u5316\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u65b0\u76f8\u4f5c\u4e3a\u6781\u5316\u7ffb\u8f6c\u7684\u201c\u6865\u6881\u201d\u6709\u5229\u4e8e\u6781\u5316\u8fc7\u7a0b\u7684\u5b9e\u73b0\u3002TEM\u548cPFM\u5206\u6790\u8868\u660e\u76f8\u6bd4\u4e8e\u968f\u673a\u53d6\u5411\u7684\u9676\u74f7, \u7ec7\u6784\u9676\u74f7\u4e2d\u5927\u91cf\u7684\u7eb3\u7c73\u7574\u5177\u6709\u51cf\u5c0f\u7684\u7574\u58c1\u80fd\u6709\u5229\u4e8e\u7574\u58c1\u5728\u5916\u7535\u573a\u4f5c\u7528\u4e0b\u7684\u79fb\u52a8\u4e5f\u662f\u9ad8\u538b\u7535\u6027\u80fd\u7684\u6765\u6e90\u3002\u672c\u7814\u7a76\u8868\u660e\u9ad8\u6027\u80fd\u7ec7\u6784\u5316KNN\u57fa\u538b\u7535\u9676\u74f7\u662f\u65e0\u94c5\u538b\u7535\u9676\u74f7\u5728\u673a-\u7535\u8f6c\u6362\u529f\u80fd\u5668\u4ef6\u5e94\u7528\u4e2d\u7684\u975e\u5e38\u597d\u7684\u9009\u62e9\u3002<\/p>\n \u6587\u732e\u94fe\u63a5<\/strong>\uff1aUltrahigh Piezoelectric Properties in Textured (K,Na) NbO3<\/sub>\u2010Based Lead\u2010Free Ceramics<\/a> (Adv. 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