(Bi2O3)(0.73)(Y2O3)(0.27) fine powders prepared by wet chemical precipitation method were cold isostatically pressed to form solid electrolyte tubes, and sintered at 900 degrees C for 10 h in the air. Their pumping oxygen characteristics in non-dehydrated Ar gas were investigated, where a ZrO2 (Y2O3 stabilized) oxygen sensor was used to measure the oxygen partial pressure Po-2. The results showed that the Po-2 Value reached magnitudes of 1x10(-20)-1x10(-10) Pa at the applied pumping oxygen voltage of 0.5 V, 1x10(-37)-1x10(-27) Pa at 1.0 V and 1x10(-53)-1x10(-47) Pa at 2.0 V within the temperature range from 550 to 650 degrees C. Moreover, no cracks were found in the tested solid electrolyte tubes. Thus, the Bi2O3-Y2O3 system might be used in solid electrolyte oxygen pump for purifying gases.
其他摘要
(Bi2O3)0.73(Y2O3)0.27 fine powders prepared by wet chemical precipitation method were cold isostatically pressed to form solid electrolyte tubes, and sintered at 900 ℃ for 10 h in the air. Their pumping oxygen characteristics in non-dehydrated Ar gas were investigated, where a ZrO2 (Y2O3 stabilized) oxygen sensor was used to measure the oxygen partial pressure Po2. The results showed that the Po2 value reached magnitudes of 1×10-20-1×10-10 Pa at the applied pumping oxygen voltage of 0.5 V, 1×10-37-1×10-27 Pa at 1.0 V and 1×10-53-1×10-47 Pa at 2.0 V within the temperature range from 550 to 650 ℃. Moreover, no cracks were found in the tested solid electrolyte tubes. Thus, the Bi2O3-Y2O3 system might be used in solid electrolyte oxygen pump for purifying gases.
Li Ying,Wang Changzhen. Investigation on pumping oxygen characteristics of (Bi2O3)(0.73)(Y2O3)(0.27) solid electrolyte[J]. JOURNAL OF RARE EARTHS,2008,26(3):337-340.
APA
Li Ying,&Wang Changzhen.(2008).Investigation on pumping oxygen characteristics of (Bi2O3)(0.73)(Y2O3)(0.27) solid electrolyte.JOURNAL OF RARE EARTHS,26(3),337-340.
MLA
Li Ying,et al."Investigation on pumping oxygen characteristics of (Bi2O3)(0.73)(Y2O3)(0.27) solid electrolyte".JOURNAL OF RARE EARTHS 26.3(2008):337-340.
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