摘要
采用共沉淀法制备了细的Ce0.8Y0.2O1.9(YDC)粉末,并将其应用于钴掺杂的YDC电解质材料。研究了钴元素对材料烧结性能和电性能的影响。结果表明,钴元素显著增加了材料的密度(烧结温度在1000℃时,其密度超过理论密度的98%)和电导率(750℃时0.99S/m),同时还发现小于1μm尺寸的晶粒具有高的电导率。
Fine Ce0. 8 Y0. 2 O1.9 （Y D C） powders were prepared by chemical co-precipitation. The cobah-doped YDC electrolytes were prepared by a solid state reaction route. The effect of cobalt ions on the sinterability and electrical conductivity was investigated. Cobalt ions increase the density （over 98% theoretical density at sintering temperature of 1000℃） and electrical conductivity （0. 99 S/m at 750℃in air）. The results also reveal that a smaller grain size （less than 1μm） correlates with a higher conductivity.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2012年第16期38-41,共4页
Materials Reports
基金
美国Gulf Coast Hazardous Substance Research Center课题项目(R828598C778)
关键词
电解质氧化物化学合成共沉淀密度
电导率烧结温度
electrolyte, oxide, chemical synthesis, co-precipitation, density, electrical conductivity, sinteringtemperature
