An Al_(2)O_(3)coating was prepared from aluminum isopropoxide as precursor on tungsten substrate.The dependences of crystalline and phase in Al_(2)O_(3)coating on temperature were studied.The results show the coatings...An Al_(2)O_(3)coating was prepared from aluminum isopropoxide as precursor on tungsten substrate.The dependences of crystalline and phase in Al_(2)O_(3)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 isα-Al_(2)O_(3).Compared to the uncoated specimens,the ones with coatings synthesized by sol-gel process provide excellent oxidation resistance at high temperature.展开更多
基金Beijing Municipal Commission of Education(0090005466010)
文摘An Al_(2)O_(3)coating was prepared from aluminum isopropoxide as precursor on tungsten substrate.The dependences of crystalline and phase in Al_(2)O_(3)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 isα-Al_(2)O_(3).Compared to the uncoated specimens,the ones with coatings synthesized by sol-gel process provide excellent oxidation resistance at high temperature.
