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- W2354498148 abstract "The preparation process of Al2O3 thin film is represented by the sol-gel method,in which Al(NO3)3·9H2O is used as precusor,water and HNO3 as solvent and peptizing agent,respectively. Dip-coating and vacuum impregnation methods are used to coat γ-AlOOH sol solution on three-dimensional silicon carbide sintered at different temperature to form Al2O3 thin film. X-ray diffraction(XRD),infrared spectrometry(IR),scanning electronic microscope(SEM) are used to study the microstructure and phase constitution of the film. The investigation clearly shows that the thin film which prepared from γ-AlOOH sol solution added 0.22mol/L HNO3 with vacuum impregnation method,is coated on three-dimensional silicon carbide perfectly. The grain of Al2O3 increases with the sintering temperature increasing. The thin film is full density at 900℃,and the glass microstructure is observed. The thermal shock resistance of the Al2O3 thin film increases with the sintering temperature increasing." @default.
- W2354498148 created "2016-06-24" @default.
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- W2354498148 date "2009-01-01" @default.
- W2354498148 modified "2023-09-24" @default.
- W2354498148 title "Research of Al_2O_3 Film on the Surface of 3D-SiC Ceramics by Sol-gel Method" @default.
- W2354498148 hasPublicationYear "2009" @default.
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