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Improvement in the Oxidation Resistance of Tungsten by Sol-Gel Derived Al2O3 Coating |
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| Authors: | Fan Ailing Meng Lingsheng Huang Lang Ma Jie College of Materials Science and Engineering Beijing University of Technology Beijing China |
| Affiliation: | Fan Ailing1,Meng Lingsheng1,Huang Lang1,2,Ma Jie1 1 College of Materials Science and Engineering,Beijing University of Technology,Beijing 100124,China 2 Department of Safety and Environment,Xinyu Iron&Steel Group Co.Ltd,Xinyu 338001,China |
| Abstract: | An Al2O3 coating was prepared from aluminum isopropoxide as precursor on tungsten substrate.The dependences of crystalline and phase in Al2O3 coating on temperature were studied.The results show the coatings being compact,uniform and crack-free can be obtained by suitable experiment.The main phase of coating is α-Al2O3.Compared to the uncoated specimens,the ones with coatings synthesized by sol-gel process provide excellent oxidation resistance at high temperature. |
| Keywords: | sol-gel process tungsten filament Al2O3 coating |
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