{"id":111841,"date":"2017-11-15T14:00:25","date_gmt":"2017-11-15T06:00:25","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=111841"},"modified":"2017-11-14T19:33:42","modified_gmt":"2017-11-14T11:33:42","slug":"acta-mater-%ef%bc%9a-mn1axn%e7%9b%b8%e5%9c%a8%e7%a6%bb%e5%ad%90%e8%be%90%e5%b0%84%e8%af%b1%e5%af%bc%e9%98%b6%e6%ae%b5%e8%bd%ac%e5%8f%98%e6%97%b6x%e5%92%8cn%e5%9b%a0%e5%ad%90%e7%9a%84%e4%bd%9c","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=111841","title":{"rendered":"Acta Mater.\uff1a Mn+1AXn\u76f8\u5728\u79bb\u5b50\u8f90\u5c04\u8bf1\u5bfc\u9636\u6bb5\u8f6c\u53d8\u65f6X\u548cn\u56e0\u5b50\u7684\u4f5c\u7528"},"content":{"rendered":"

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

Mn+1<\/sub>AXn<\/sub>, \u4e09\u5143\u5c42\u72b6\u7684\u78b3\u5316\u7269\u6216\u6c2e\u5316\u7269\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u6027\u80fd\u5f15\u8d77\u5e7f\u6cdb\u5173\u6ce8\u3002\u5176\u4e2dM\u4ee3\u8868\u8fc7\u6e21\u5143\u7d20, A\u4ee3\u8868\u2162A\u6216\u2163A\u65cf\u5143\u7d20, X\u4ee3\u8868C\u5143\u7d20\u6216N\u5143\u7d20, n=1\u30012\u62163\u3002\u6839\u636en\u503c\u5206\u522b\u53d61\u30012\u30013,\u5219Mn+1<\/sub>AXn<\/sub>\u53ef\u4ee5\u5206\u4e3a3\u4e2a\u7cfb\u5217:211\u7cfb,\u5982Ti2<\/sub>SC;312\u7cfb, \u5982Ti3<\/sub>SiC2<\/sub>; 413\u7cfb, \u5982Ti4<\/sub>AlN3<\/sub>\u3002\u672c\u6587\u4eceMn+1<\/sub>AXn<\/sub>\u76f8 (Ti2<\/sub>AlN, Ti2<\/sub>AlC, \u548c Ti4<\/sub>AlN3<\/sub>)\u51fa\u53d1, \u5229\u7528\u79bb\u5b50\u8f90\u5c04, \u7814\u7a76\u4e86\u5176\u76f8\u8bf1\u5bfc\u8f6c\u53d8\u8fc7\u7a0b\u3002<\/p>\n

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

\u5317\u4eac\u5927\u5b66\u6559\u6388\u738b\u5b87\u94a2<\/strong>\u901a\u8fc7TEM\u548cGIXRD\u663e\u5fae\u955c\u89c2\u6d4b, \u53d1\u73b0\u5bc6\u6392\u516d\u65b9\u7ed3\u6784(hcp)\u4e2d\u75311 MeV Au+<\/sup>\u79bb\u5b50\u8f90\u5c04\u53d1\u751f\u76f8\u8bf1\u5bfc\u8f6c\u53d8\u4ece\u800c\u751f\u6210 Mn+1<\/sub>AXn<\/sub>\u76f8(\u672c\u6587\u4e3b\u8981\u7814\u7a76Ti2<\/sub>AlN, Ti2<\/sub>AlC\u548c Ti4<\/sub>AlN3<\/sub>)\u3002\u5e76\u4e14\u5728\u4e00\u7cfb\u5217\u79bb\u5b50\u5f71\u54cd\u4e0b, \u89c2\u6d4b\u5230\u6bcf\u5e73\u65b9\u5398\u7c73\u91cc\u9762\u67091\u00d71014<\/sup> \u5230 2\u00d71016<\/sup> \u4e2a\u79bb\u5b50\u3002\u5e76\u4e14\u901a\u8fc7TEM\u56fe\u50cf\u548c\u9009\u533a\u5206\u6790(SAED)\u89c2\u6d4b\u5230\u8f90\u5c04\u540e\u7ed3\u6784\u53d1\u751f\u8bf1\u5bfc\u8f6c\u53d8\u7684\u8fdb\u5316\u8fc7\u7a0b\u3002\u7ecf\u8fc7\u6240\u5f97\u76f8\u56fe\u50cf\u7684\u76f8\u4e92\u5bf9\u6bd4\u548cEDP\u7684\u6a21\u62df, \u5bf9\u4e8e\u76f8\u8f6c\u53d8\u4e2d\u7684\u539f\u5b50\u5c3a\u5ea6\u673a\u5236\u5df2\u7ecf\u8fdb\u884c\u5b9a\u4e49\u3002\u79bb\u5b50\u8f90\u7167\u5f15\u8d77\u7684Ti\/Al\u53cd\u4f4d\u7f3a\u9677\u548c\u6269\u5c55\u4f4d\u9519\u7684\u5f62\u6210, \u5bfc\u81f4\u4e86\u521d\u59cb\u7684hcp\u5728\u8bf1\u5bfc\u9636\u6bb5\u4e2d, \u4e2d\u95f4\u76f8\u03b3-\u76f8\u5411fcc\u76f8\u7684\u8f6c\u53d8\u3002\u5728\u540c\u6837\u8f90\u5c04\u6761\u4ef6\u4e0b\u7684Ti2<\/sub>AlC\u4e0eTi4<\/sub>AlN3<\/sub>\u7684\u5f62\u6210\u884c\u4e3a\u8fdb\u884c\u5b9e\u9a8c\u6570\u636e\u548c\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u8fdb\u884c\u6bd4\u8f83\u3002\u5728\u8f90\u5c04\u6761\u4ef6\u4e2dMn+1<\/sub>AXn<\/sub>\u76f8\u4e2dX\u548cn \u7684\u6570\u503c\u53d8\u5316\u5bf9\u5176\u8f6c\u53d8\u884c\u4e3a\u8fc7\u7a0b\u8fdb\u884c\u4e86\u6df1\u5ea6\u9610\u8ff0\u3002\u76f8\u5bf9\u4e8e\u8f90\u5c04\u53d1\u751f\u8bf1\u5bfc\u8f6c\u53d8, \u91d1\u5c5e\u5728Ti-Al-X (X=C, N)\u4f53\u7cfb\u4e2d\u7684\u8106\u65ad\u673a\u5236(\u6839\u636e\u5176\u6210\u952e\u7279\u70b9\u548cMAX\u76f8\u7684\u7ec4\u6210), Ti2<\/sub>AlC\u76f8\u6bd4\u8f83\u4e8eTi2<\/sub>AlN(\u7531\u4e8e\u6bd4\u8f83\u5f3a\u7684Ti-Al \u5171\u4ef7\u952e\u7ed3\u5408, Ti4<\/sub>AlN3<\/sub> \u76f8\u5bf9\u4e8e\u8f90\u5c04\u8bf1\u5bfc\u76f8\u7684\u8f6c\u53d8\u6bd4Ti2<\/sub>AlN\u66f4\u6709\u62b5\u6297\u5916\u754c\u7684\u80fd\u529b)\u7684\u8f90\u5c04\u8bf1\u5bfc\u76f8\u8f6c\u53d8\u6765\u8bb2\u6709\u8f7b\u5fae\u7684\u4e0d\u654f\u611f\u6027\u3002\u5728\u8f90\u5c04\u8bf1\u5bfc\u56fa\u4f53\u6eb6\u89e3\u76f8\u4e2d, \u7531\u4e8e\u4f4eAl\u542b\u91cf\u548c\u4f4e\u9634\u79bb\u5b50\u7a7a\u7f3a\u7387, \u6240\u4ee5Ti4<\/sub>AlN3<\/sub>\u76f8\u6bd4Ti2<\/sub>AlN\u76f8\u66f4\u5177\u6709\u62b5\u6297\u8f90\u5c04\u8bf1\u5bfc\u76f8\u8f6c\u53d8\u7684\u80fd\u529b\u3002<\/p>\n

\u8be5\u6210\u679c\u4ee5\u201cRole of the X and <\/strong>n<\/strong> factors in ion-irradiation induced phase<\/strong> transformations of Mn+1<\/sub>AXn<\/sub> phases<\/strong>\u201d\u4e3a\u9898\u4e8e2017\u5e7411\u67084\u65e5\u53d1\u8868Acta Materialia<\/strong>\u5728\u4e0a\u3002<\/p>\n

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

\u8868<\/strong>1.<\/strong>\u9762\u5fc3\u7acb\u65b9\u7ed3\u6784<\/strong> (Ti2AlN, Ti4AlN3<\/strong>\u548c<\/strong>TiN<\/strong>\uff09\u7684\u5355\u80de\u53c2\u6570<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1.<\/strong> \u6bc1\u574f\u9636\u6bb5\u6bcf\u4e2a\u539f\u5b50\u66ff\u6362\u7684\u4fa7\u9762\u6df1\u5ea6\u63cf\u7ed8<\/strong>(dpa)<\/strong>\u4e0e\u901a\u8fc7<\/strong>1MeV Au+<\/sup><\/strong>\u79bb\u5b50\u8f90\u5c04\u4e0b\u79bb\u5b50\u96c6\u4e2d\u79fb\u690d\u8bf1\u5bfc\u53cd\u5e94\u5728<\/strong>Ti2AlN, Ti2AlC <\/strong>\u548c<\/strong>Ti4AlN3<\/strong>\u5728<\/strong>1\u00d71016<\/sup> cm-2<\/sup><\/strong>\u4e2d\u7531 <\/strong>SRIM<\/strong>\u6240\u6d4b\u6240\u5f97\u6570\u636e<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2.<\/strong>\u6676\u80de\u4e2d\u7684\u539f\u5b50\u6676\u683c\u914d\u7f6e<\/strong>, HRTEM<\/strong>\u56fe\u50cf\u548c\u76f8\u5173\u7684<\/strong>SEAD<\/strong>\u56fe\u50cf<\/strong>(a-g<\/strong>\u662f<\/strong>Ti2AlN<\/strong>\uff0c<\/strong>n-h<\/strong>\u662f<\/strong>Ti4AlN3)<\/strong>\u3002<\/strong><\/p>\n

\"\"<\/p>\n

\u7535\u5b50\u5165\u5c04\u65b9\u5411\u5e73\u884c\u4e8e\uff0811-20\uff09\u65b9\u5411\u548c\uff081-100\uff09\u65b9\u5411\u7684\u56fe\u50cf\u5206\u522b\u4f4d\u4e8eHRTEM\u56fe\u50cf\u7684\u6700\u4e0a\u65b9\u548c\u6700\u4e0b\u65b9\u3002Ti \u548c Al\u7684\u9633\u79bb\u5b50\u5728 Ti2AlX(X=C, N) \u5e73\u884c\u4e8e\uff080001\uff09\u4e0a\u6309\u539f\u5b50\u987a\u5e8fABABAB\u6392\u597d, \u5728\u6b64\u5806\u579b\u5e8f\u4e2dAl\u539f\u5b50\u7531\u4e0b\u5212\u7ebf\u8868\u793a\u51fa\u6765\u3002\u5e0c\u814a\u5b57\u6bcd\u4ee3\u8868\u9634\u79bb\u5b50\u3002<\/p>\n

\u56fe<\/strong>3.<\/strong>\u539f\u59cb\u4e0e\u8f90\u5c04\u540e\u7684<\/strong>Ti2AlN(a), Ti2AlC (b) <\/strong>\u548c<\/strong> Ti4AlN3 (c)<\/strong>\u5728\u8303\u56f4\u4ece<\/strong>1\u00d71014<\/sup> cm-2 <\/sup>to 2\u00d71016<\/sup> cm-2<\/sup><\/strong>\u4e0d\u540c\u5f71\u54cd\u4e0b\u7684\u4ee3\u8868<\/strong>GIXRD<\/strong> \u56fe\u50cf<\/strong><\/p>\n

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

\u968f\u7740\u5f71\u54cd\u56e0\u7d20\u7684\u589e\u52a0\uff0c\u5bf9\u4e8e\u6240\u6709\u521d\u59cb\u76f8\u5728\u5f3a\u5ea6\u4e0a\u548c\u5149\u8c31\u8303\u56f4\u5185\u7684\u6700\u5927\u76f8\u5173\u884d\u5c04\u8868\u660e\u5176\u4ecehcp\u5230fcc\u7684\u8f6c\u53d8\u3002\u56fe\u4e2d\uff0c\u84dd\u8272\u4e09\u89d2\u5f62\u4ee3\u8868\u4e0e\u4e2d\u95f4\u03b3-Ti2<\/sub>AlN\u76f8\u76f8\u4e00\u81f4\u7684\u9876\u70b9\uff0c\u7ea2\u8272\u5706\u5f62\u4ee3\u8868 fcc\u9762\u5fc3\u7acb\u65b9\u76f8\u3002
\n <\/strong><\/p>\n

\u56fe<\/strong>4.<\/strong> \u8ba1\u7b97<\/strong> \u00a0(a) Ti2<\/sub>AlN<\/strong>\u548c<\/strong>(b) Ti2<\/sub>AlC<\/strong>\u6240\u5f97\u6001\u5bc6\u5ea6\u548c\u90e8\u5206\u6001\u5bc6\u5ea6<\/strong>\u3002<\/p>\n

\"\"<\/p>\n

\u6240\u6807\u7eff\u7ebf\u8868\u793a\u8d39\u7c73\u80fd\u7ea7\u5904\u7684\u6001\u5bc6\u5ea6\uff08DOS\uff09\u3002<\/p>\n

\u56fe5.<\/strong> Ti2<\/sub>AlN (a-d), \u00a0Ti2<\/sub>AlC (e-h) \u548cTi4<\/sub>AlN3<\/sub> (i-l) \u57281 MeV Au+<\/sup>\u57281\u00d71014 <\/sup>cm-2 <\/sup>(a, e, and i), 1\u00d71015<\/sup> cm-2<\/sup> (b, f, and j), 1\u00d71016<\/sup>cm-2<\/sup> (c, g, and k), and 2\u00d71016<\/sup> cm-2<\/sup> (d, h, and l)\u7684\u8f90\u5c04SAED \u56fe\u50cf \uff08\u4ee5\u4e0a\u51e0\u79cd\u56fe\u50cf\u90fd\u662f\u7531\u7535\u5b50\u5165\u5c04\u5149\u5e73\u884c\u4e8e(11-20), \u7eff\u8272\u7bad\u5934\u4ee3\u8868\u4e86\u65b0fcc\u7ed3\u6784\u7684\u6563\u70b9\uff0c\u7ea2\u8272\u7bad\u5934\u4ee3\u8868\u7740(-1100)\u4e0a\u7684\u91cd\u8981\u8870\u53d8\u6563\u5c04\u70b9\uff09\u3002<\/p>\n

\"\"<\/p>\n

\u3010\u5c55\u671b\u3011<\/strong><\/p>\n

\u672c\u6587\u4eceMn+1<\/sub>AXn<\/sub>\u76f8\u4e2d\u7684\u4e00\u90e8\u5206\u51fa\u53d1\u5bf9X\u548cn\u56e0\u7d20\u8fdb\u884c\u4e86\u79bb\u5b50\u8f90\u5c04\u7814\u7a76\u3002\u7814\u7a76\u7684\u5185\u5bb9\u6709\u9650\uff0c\u4e3a\u4e86\u5bfb\u6c42\u66f4\u52a0\u7b26\u5408\u7ecf\u6d4e\u578b\u793e\u4f1a\u7684\u65b0\u6750\u6599\uff0c\u4e2a\u4eba\u8ba4\u4e3a\u6b64\u6cd5\u53ef\u7ee7\u7eed\u7814\u7a76\u6df1\u5165\u63a2\u8ba8\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Role of the X and n <\/em>factors in ion-irradiation induced phase<\/a>Transformations of Mn+1<\/sub>AXn<\/sub> phase<\/a>(ActaMater,2017,DOI:10.1016\/j.actamat.2017.11.008)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u4ed8\u94b0\u7f16\u8f91\uff0c\u8d75\u98de\u9f99\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002\u00a0<\/p>\n

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

\u3010\u5f15\u8a00\u3011 Mn+1AXn, \u4e09\u5143\u5c42\u72b6\u7684\u78b3\u5316\u7269\u6216\u6c2e\u5316\u7269\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u6027\u80fd\u5f15\u8d77\u5e7f\u6cdb\u5173\u6ce8\u3002\u5176\u4e2dM\u4ee3\u8868\u8fc7\u6e21\u5143\u7d20, A\u4ee3\u8868\u2162A\u6216\u2163A\u65cf\u5143\u7d20, X\u4ee3\u8868C\u5143\u7d20\u6216N\u5143\u7d20, n=1…<\/p>\n","protected":false},"author":230,"featured_media":111851,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215,2],"tags":[2549,2481],"class_list":["post-111841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jiedu","category-keji","tag-2549","tag-fp"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/111841"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/230"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=111841"}],"version-history":[{"count":4,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/111841\/revisions"}],"predecessor-version":[{"id":112032,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/111841\/revisions\/112032"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/media\/111851"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111841"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}