{"id":127472,"date":"2018-03-06T06:30:37","date_gmt":"2018-03-05T22:30:37","guid":{"rendered":"\/\/m.iemloyee.com\/?p=127472"},"modified":"2018-03-07T08:48:02","modified_gmt":"2018-03-07T00:48:02","slug":"corrosion-science%ef%bc%9aal2o3%e5%af%b9sic%e9%99%b6%e7%93%b7%e6%8a%97%e6%b0%a7%e5%8c%96%e6%80%a7%e7%9a%84%e5%bd%b1%e5%93%8d","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=127472","title":{"rendered":"Corrosion Science\uff1aAl2O3\u5bf9SiC\u9676\u74f7\u6297\u6c27\u5316\u6027\u7684\u5f71\u54cd"},"content":{"rendered":"

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

SiC\u56e0\u5176\u70ed\u81a8\u80c0\u7cfb\u6570\u4f4e\uff0c\u5bfc\u70ed\u7cfb\u6570\u9ad8\uff0c\u70ed\u7a33\u5b9a\u6027\u4f18\u5f02\u548c\u6297\u6c27\u5316\u6027\u597d\u7b49\u4f18\u826f\u7684\u6027\u80fd\u800c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u9ad8\u6e29\u542b\u6c27\u73af\u5883\u4e0b\u4f5c\u4e3a\u4fdd\u62a4\u6d82\u5c42\u6750\u6599\u3002\u5305\u57cb\u7194\u6e17\u4f5c\u4e3aSiC\u6d82\u5c42\u7684\u5236\u5907\u65b9\u6cd5\u4e4b\u4e00\uff0c\u4f7f\u6d82\u5c42\u548c\u57fa\u6750\u4e4b\u95f4\u5f62\u6210\u7262\u56fa\u7684\u754c\u9762\u7ed3\u5408\uff0c\u5e76\u5f62\u6210\u68af\u5ea6\u6d82\u5c42\u3002\u5305\u57cb\u7194\u6e17\u539f\u6599\u7531Si\uff0c\u77f3\u58a8\u548cAl2<\/sub>O3<\/sub>\u7ec4\u6210\u3002\u7136\u800c\uff0c\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u5f88\u5c11\u62a5\u9053Al2<\/sub>O3<\/sub>\u5bf9SiC\u6297\u6c27\u5316\u6027\u7684\u5f71\u54cd\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u897f\u5317\u5de5\u4e1a\u5927\u5b66\u674e\u8d3a\u519b\u6559\u6388<\/strong>\uff0c\u4ed8\u524d\u521a\u6559\u6388<\/strong>\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005<\/strong>\uff09\u5728Corrosion Science<\/strong>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201cInfluence of Al2<\/sub>O3<\/sub> on the oxidation resistance of SiC ceramic: First-principle study and experiment<\/strong>\u201d\u7684\u6587\u7ae0\u3002\u7814\u7a76\u4eba\u5458\u901a\u8fc7\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u548c\u6c27\u5316\u5b9e\u9a8c\u7814\u7a76\u4e86Al2<\/sub>O3<\/sub>\u5bf9SiC\u9676\u74f7\u6297\u6c27\u5316\u6027\u80fd\u7684\u5f71\u54cd\u3002\u7814\u7a76\u4e86CO\u6216O2<\/sub>\u5206\u5b50\u6269\u6563\u5230\u63ba\u6742Al\u7684SiO2<\/sub>\u4e2d\u7684\u5c40\u90e8\u5316\u5b66\u6027\u8d28\uff0c\u5e76\u901a\u8fc7\u5177\u6709\/\u4e0d\u5177\u6709Al2<\/sub>O3<\/sub>\u7684SiC\u9676\u74f7\u7684\u6c27\u5316\u884c\u4e3a\u6765\u5b9a\u6027\u5730\u9a8c\u8bc1\u3002Al2<\/sub>O3<\/sub>\u63ba\u6742SiC\u9676\u74f7\u7684\u6c27\u5316\u8fc7\u7a0b\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff0c\u4e14Al2<\/sub>O3<\/sub>\u7684\u5f15\u5165\u5bf9SiC\u9676\u74f7\u7684\u6297\u6c27\u5316\u6027\u6709\u8d1f\u9762\u5f71\u54cd\uff0c\u4f46\u5176\u8d1f\u9762\u5f71\u54cd\u662f\u6709\u9650\u7684\u3002\u672c\u6587\u7b2c\u4e00\u4f5c\u8005\u4e3a\u535a\u58eb\u751f\u7a0b\u6625\u7389<\/strong>\u3002<\/p>\n

\u3010\u56fe\u6587\u89e3\u8bfb\u3011<\/strong><\/p>\n

\u8868\u4e00 \u5177\u6709\u95f4\u9699CO\u5206\u5b50\u7684SiO2<\/sub>\u548cAl-SiO2<\/sub>\u4e2dC-O\u548cAl-O\u952e\u7684Mulliken\u952e\u5e03\u5c45\u548c\u957f\u5ea6<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\nBond population(bond length\/\u00c5)<\/td>\n<\/tr>\n
\u00a0<\/td>\nSiO2<\/sub><\/td>\nAl-SiO2<\/sub><\/td>\n<\/tr>\n
C-O2<\/td>\n1.19(1.15)<\/td>\n1.11(1.20)<\/td>\n<\/tr>\n
C-O1<\/td>\n-0.04(2.71)<\/td>\n0.52(1.39)<\/td>\n<\/tr>\n
Al-O<\/td>\n–<\/td>\n0.46(1.68)<\/td>\n<\/tr>\n
\u00a0<\/td>\n–<\/td>\n\u00a0 0.47(1.68)<\/td>\n<\/tr>\n
\u00a0<\/td>\n–<\/td>\n\u00a00.45(1.71)<\/td>\n<\/tr>\n
Al-O1<\/td>\n–<\/td>\n0.1(2.01)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u56fe\u4e00 \u542b\u95f4\u9699CO\u5206\u5b50\u7684SiO2<\/sub>\u548cAl-SiO2<\/sub>\u7684PDOS\u66f2\u7ebf<\/strong><\/p>\n

\"\"<\/p>\n

(a<\/strong>) SiO2<\/sub><\/p>\n

(b<\/strong>) Al-SiO2<\/sub><\/p>\n

\u56fe\u4e8c \u5177\u6709\u95f4\u9699O2<\/sub>\u5206\u5b50\u7684Al-SiO2<\/sub>-VO\u7684PDOS\u66f2\u7ebf<\/strong><\/p>\n

\"\"<\/p>\n

\u00a0O-O\u952e\u7684\u7a33\u5b9a\u6027\u4e0b\u964d\uff0cO\u548cSi sp\u8f68\u9053\u4e4b\u95f4\u5b58\u5728\u5bbd\u6742\u4ea4\uff0cO\u4e0eAl\u952e\u5408<\/p>\n

\u56fe\u4e09 \u5177\u6709\u95f4\u9699CO\u5206\u5b50\u7684Al-SiO2<\/sub>-VO\u7684PDOS\u66f2\u7ebf\u00a0<\/strong><\/p>\n

\"\"<\/p>\n

\u8be5\u56fe\u663e\u793a\u4e86CO\u5206\u5b50\u6269\u6563\u5230O\u7a7a\u4f4d\u540eSi\u539f\u5b50\uff0cC\u539f\u5b50\uff0cO\u539f\u5b50\u548cAl\u539f\u5b50\u7684\u7535\u5b50\u6001\u3002\u5f62\u6210\u4e86\u66f4\u7a33\u5b9a\u7684C-O\u952e\uff0cC-Si\u952e\u5408\uff0cAl-O\u952e\u5408\u3002<\/p>\n

\n \u56fe\u56db Al-SiC\u9676\u74f7\u6837\u54c1\u7684\u5fae\u89c2\u7ec4\u7ec7\u548c\u76f8\u7ec4\u6210<\/strong><\/p>\n

\"\"<\/p>\n

\u00a0(a<\/strong>) \u8868\u9762\u80cc\u6563\u5c04\u56fe\u50cf\uff0c\u63d2\u56fe\u4e3aXRD\u66f2\u7ebf<\/p>\n

(b-e<\/strong>) \u70b91,2,3,4\u7684EDS\u5206\u6790<\/p>\n

\u56fe\u4e94 Al-SiC\u9676\u74f7\u6837\u54c1TEM\u5206\u6790\u00a0<\/strong><\/p>\n

\"\"<\/p>\n

(a<\/strong>) \u660e\u573a\u50cf\uff0cSAED\uff0cEDS\u5206\u6790<\/p>\n

(b<\/strong>) \u533a\u57dfA\u7684HRTEM\u56fe\u50cf<\/p>\n

\u56fe\u516d \u6c27\u5316\u540eAl-SiC\u9676\u74f7\u6837\u54c1\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

(a<\/strong>) XRD<\/p>\n

(b<\/strong>) 1773K\u6c27\u531611h\u540eSiC\u548cAl-SiC\u9676\u74f7\u5b54\u5206\u5e03<\/p>\n

(c<\/strong>) EDS<\/p>\n

(d<\/strong>) Al-SiC\u9676\u74f7\u6c27\u5316\u540e\u7684Al\u5206\u5e03<\/p>\n

\u56fe\u4e03 \u6c27\u5316\u540e\u5f0f\u6837\u7684TEM\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

\u00a0(a<\/strong>) SiC<\/p>\n

\n (b<\/strong>) Al-SiC<\/p>\n

\u6761\u4ef6\uff1a1773K\u6c27\u531611h<\/p>\n

\u56fe\u516b SiC\u548cAl-SiC \u9676\u74f7\u6c27\u5316\u540e\u7684\u8d28\u91cf\u53d8\u5316\u00a0<\/strong><\/p>\n

\"\"<\/p>\n

Al-SiC\u9676\u74f7\u8d28\u91cf-\u6c27\u5316\u65f6\u95f4\u51fd\u6570\u53ef\u4ee5\u62df\u5408\u4e3a\u4e09\u6bb5\u7ebf\u6027\u51fd\u6570\uff0c\u5bf9\u5e94\u6c27\u5316\u7684\u4e09\u4e2a\u9636\u6bb5<\/p>\n

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

Al2<\/sub>O3<\/sub>\u63ba\u6742SiC\u9676\u74f7\u7684\u6c27\u5316\u8fc7\u7a0b\u5206\u4e3a\u4e09\u4e2a\u9636\u6bb5\u3002 \u9996\u5148\uff0cAl\u539f\u5b50\u6269\u6563\u5230\u751f\u6210\u7684SiO2<\/sub>\u4e2d\uff0c\u5e76\u53d6\u4ee3Si\u539f\u5b50\u5f62\u6210-Al-O-Si-\u73af\u3002 \u7136\u540e\uff0c\u7531\u4e8e\u5728Al-O\u952e\u4e2d\u7684O\u539f\u5b50\u548cCO\u5206\u5b50\u4e4b\u95f4\u7684\u53cd\u5e94\uff0c\u73af\u88ab\u635f\u574f\uff0c\u5bfc\u81f4CO2<\/sub>\u5206\u5b50\u548cO\u7a7a\u4f4d\u5f62\u6210\u3002 \u6700\u540e\uff0c\u4e00\u65e6O2<\/sub>\u6216\u53e6\u4e00\u4e2aCO\u5206\u5b50\u63a5\u8fd1O\u7a7a\u4f4d\uff0c\u5c06\u5f62\u6210\u7535\u5b50\u6216\u7535\u5b50\u73af\u4ee5\u6062\u590dSiO2<\/sub>\u7684\u7f51\u7edc\u7ed3\u6784\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aInfluence of Al2<\/sub>O3<\/sub> on the oxidation resistance of SiC ceramic: First-principle study and experiment <\/a><\/strong>(Corros.Sci., 08 Feb, 2018, DOI: 10.1016\/j.corsci.2018.02.009)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u91d1\u5c5e\u5b66\u672f\u7ec4liunian\u6295\u7a3f\uff0c\u6750\u6599\u725b\u7f16\u8f91\u6574\u7406\u3002<\/p>\n

\u6750\u6599\u4eba\u7f51\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\u7f16\u8f91\u90e8<\/u><\/a>\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\u3002<\/p>\n

\u6750\u6599\u6d4b\u8bd5\u3001\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/b><\/strong>\u6d4b\u8bd5\u8c37<\/b><\/u><\/strong><\/a>\uff01<\/b><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

\u3010\u5f15\u8a00\u3011 SiC\u56e0\u5176\u70ed\u81a8\u80c0\u7cfb\u6570\u4f4e\uff0c\u5bfc\u70ed\u7cfb\u6570\u9ad8\uff0c\u70ed\u7a33\u5b9a\u6027\u4f18\u5f02\u548c\u6297\u6c27\u5316\u6027\u597d\u7b49\u4f18\u826f\u7684\u6027\u80fd\u800c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u9ad8\u6e29\u542b\u6c27\u73af\u5883\u4e0b\u4f5c\u4e3a\u4fdd\u62a4\u6d82\u5c42\u6750\u6599\u3002\u5305\u57cb\u7194\u6e17\u4f5c\u4e3aSiC\u6d82\u5c42\u7684\u5236\u5907\u65b9\u6cd5\u4e4b…<\/p>\n","protected":false},"author":4237,"featured_media":127480,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[36],"class_list":["post-127472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jiedu","tag-ceramic"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/127472"}],"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\/4237"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=127472"}],"version-history":[{"count":10,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/127472\/revisions"}],"predecessor-version":[{"id":128857,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/127472\/revisions\/128857"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/media\/127480"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=127472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=127472"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=127472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}