| SiC-Al2O3复合陶瓷涂层抗熔融贫煤侵蚀特性研究 |
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| 引用本文： | 程银健,陈九磅,王平,桂老虎.SiC-Al2O3复合陶瓷涂层抗熔融贫煤侵蚀特性研究[J].表面技术,2011(5):38-40. |
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| 作者姓名： | 程银健 陈九磅 王平 桂老虎 |
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| 作者单位： | 合肥工业大学材料科学与工程学院,合肥,230009;合肥科德电力表面技术有限公司,合肥,230088 |
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| 摘 要： | 采用浆料法制备SiC-A12O3复合陶瓷涂层,并添加少许ZrO2微粉.分别在1 300,1 400℃的高温炉中煅烧8h,研究了含灰分较大的贫煤在熔融状态下对涂层的侵蚀特性.采用SEM和EDS观察了煅烧后灰渣在涂层上的形貌,并对结焦的渣样进行了分析.实验结果表明:在1 300℃下煅烧后,含灰分较多的贫煤对SiC-Al2O...
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| 关 键 词： | 陶瓷涂层 侵蚀特性 SEM EDS 渗透 |
Anti-corrosion Characteristics of Molten Lean Coal on SiC-Al_2O_3 Composite Ceramic Coating |
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| CHENG Yin-jian,CHEN Jiu-bang,WANG Ping,GUI Lao-hu.Anti-corrosion Characteristics of Molten Lean Coal on SiC-Al_2O_3 Composite Ceramic Coating[J].Surface Technology,2011(5):38-40. |
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| Authors: | CHENG Yin-jian CHEN Jiu-bang WANG Ping GUI Lao-hu |
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| Affiliation: | CHENG Yin-jian1,CHEN Jiu-bang1,WANG Ping2,GUI Lao-hu1(1.Academy of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China,2.Hefei Kede Surface Technology Co.,Ltd,Hefei 230088,China) |
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| Abstract: | The SiC-Al2O3 composite ceramic coating was prepared by slurry method,adding a little ZrO2 micro powder.Then the coating was put into a high temperature muffle for 8 hours at 1 300 ℃ and 1 400 ℃.Experiment studied with lean coal which contains larger coal ash in the molten state,the erosion of the coating characteristics.By SEM and EDS the calcined ash feature of the coating was observed and the coke slag samples were analyzed by the line.The results show that: after calcination at 1 300 ℃,with more lean coal ash on the erosion of SiC-Al2O3 coating is not obvious,but a slight aggregation.After adding a little amount of ZrO2 micro powder coating improves performance against ash erosion;After calcination at 1 400 ℃,some ash is adhered to the surface of the coating,and has a phenomenon to penetrate the internal coating. |
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| Keywords: | ceramic coating corrosive characteristics SEM EDS penetration |
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