有机载体挥发特性对PTC陶瓷铝电极性能的影响  

Influence of volatility of organic carrier on the performances of Al electrode of PTC ceramics

作　　者：陈小龙[1] 蒲永平[1] 吴胜红[2] 张宁[2] 赵新[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,陕西西安710021 [2]东莞市龙基电子有限公司,广东东莞523325

出　　处：《电子元件与材料》2010年第8期22-24,31,共4页Electronic Components And Materials

基　　金：教育部科学技术研究重点项目(No209126);陕西省教育厅科研专项基金资助项目(No112H011)

摘　　要：为了制备出满足铝电极性能要求的电极浆料,采用两种具有不同挥发特性的有机载体烧渗PTC铝电极,通过XRD和SEM研究了烧渗后铝电极的物相和微观形貌对电极性能的影响。结果表明:采用阶梯式挥发的有机载体制备的铝电极浆料,烧渗后的电极结构致密,假电阻小,|RAl-RIn-Ga|/RIn-Ga约为0.3%;抗老化性能优良,沸水中老化24h后,电阻变化率不超过2.3%,经400V交流电压冲击500h后,电阻变化率不超过1.0%。Two kinds of organic carriers with different volatile behaviour of Al electrode used for PTC ceremics were prepared in order to produce organic carriers that meet with the requirement of property of electrode paste.Influences of crystal phase and microstructure on the properties of fritted-Al electrode were investigated with XRD and SEM.The results show that the Al electrode paste that adopt stepped volatile organic carriers possesses dense structure after fritting,and dummy resistance is low,|RAl-RIn-Ga| /...

关 键 词：有机载体 挥发特性 PTC陶瓷 铝电极 

分 类 号：TM28[一般工业技术—材料科学与工程]