摘要
采用甘氨酸-硝酸盐法(GNP)和溶胶凝胶法分别合成了Sm_(0.1)Nd_(0.1)Ce_(0.8)O_(1.9)(SNDC)和La_2Mo_2O_9(LAMOX)粉末,并用常压烧结的方法制备了不同比例的SNDC和LAMOX复合材料,通过XRD和SEM等手段表征了不同复合比例样品的物相和表面形貌并测试了烧结样品的电导率。结果表明,复合样品的电导率在相变点前后随着复合量增加变化趋势相反,其中LAMOX含量为20mol%的样品在550℃时的电导率能达到0.01 S/cm,高于同温度下SNDC电导率。
Glycine-nitrate process(GNP) and sol-gel method were used to synthesize Sm_(0.1)Nd_(0.1)Ce_(0.8)O_(1.9)(SNDC) and La_2Mo_2O_9(LAMOX) powders, respectively. Different ratios of SNDC/LAMOX composites were fabricated through pressureless sintering. XRD and SEM were used to characterize the phase and morphology of the samples with different composition. The conductivity of samples were tested. The result shows an reverse trend with La_2 Mo_2 O_9 amount near the phase transformation point. The conductivity of the sample with 20 mol% LAMOX reaches 0.01 S/cm at 550 ℃, higher than that of SNDC at the same temperature.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2018年第S1期344-347,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51323001)