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首页> 外文期刊>Chemistry Letters >Low-temperature Sintering of Yttria-stabilized Zirconia Using Bismuth-Vanadium Oxide as a Sintering Aid at 800 degrees C
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Low-temperature Sintering of Yttria-stabilized Zirconia Using Bismuth-Vanadium Oxide as a Sintering Aid at 800 degrees C

机译:氧化铋钒作为烧结助剂在800摄氏度下对氧化钇稳定的氧化锆的低温烧结

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摘要

The effect of the addition of copper-doped bismuth-vanadium oxide to yttria-stabilized zirconia (YSZ) on the sinterability and electrical conductivity, especially in reducing atmospheres, has been investigated. When Bi2Cu0.1V0.9O5.35 was used as a sintering aid, the sintering temperature could be reduced to 800 degrees C, whereas the conventional sintering process requires temperatures above 1300 degrees C. Although the conductivity of YSZ with 1.5 mol % Bi2Cu0.1V0.9O5.35 was slightly lower than that of pure YSZ sintered at 1300 degrees C, no Po-2 dependence was observed under reducing conditions (e.g., Po-2 = 10(-5)-10(-2)4 atm), which indicates that the electrolyte is applicable to solid-oxide fuel cells.
机译:研究了在氧化钇稳定的氧化锆(YSZ)中添加铜掺杂的铋钒氧化物对可烧结性和电导率的影响,特别是在还原性气氛中。当使用Bi2Cu0.1V0.9O5.35作为烧结助剂时,烧结温度可以降低到800摄氏度,而传统的烧结工艺则需要1300摄氏度以上的温度。尽管YSZ的电导率为1.5 mol%Bi2Cu0.1V0 .9O5.35略低于在1300摄氏度下烧结的纯YSZ,在还原条件下(例如Po-2 = 10(-5)-10(-2)4 atm)没有观察到Po-2依赖性,这表明该电解质适用于固体氧化物燃料电池。

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