节点文献
自蔓延高温合成La0.67Sr0.33MnO3-δ粉体的研究
Study on Synthesis of La0.67Sr0.33MnO3-δ Powder by SHS Method
【摘要】 采用自蔓延高温合成 (SHS)技术合成了 L a0 .6 7Sr0 .33Mn O3-δ粉体。研究了 KMn O4 含量、压坯密度对燃烧反应及退火温度对粉体性能的影响 ,并用 XRD、SEM对粉体的性能进行了表征 ,结果表明 :KMn O4 用量为 0 .3时 ,反应完全且晶粒大小均匀 ;反应的原料混合物压坯密实度的降低可使燃烧温度有所增大 ;最佳退火温度为 110 0℃。
【Abstract】 The La 0.67 Sr 0.33 MnO 3- δ powder was synthesized using the SHS method. The effect of the KMnO4 content,density of the body and the temperature of annealing on the properties of the powder were investigated. XRD and SEM were used to characterize the powder. The results showed that when the relative content of KMnO4 is 0.3,the reaction is completed and the size of the grains is almost homogeneous. Furthermore,reduction in the body′s density may lead to the increase in the combustion temperature. The ideal temperature of annealing is 1 100 ℃.
【Key words】 SHS method； KMnO4 content； relative density of body； annealing temperature；
- 【文献出处】 武汉理工大学学报 ,Journal of Wuhan University of Technology , 编辑部邮箱 ,2004年05期
- 【分类号】TB44
- 【被引频次】4
- 【下载频次】70