掺杂Zr对ATO纳米粉末性能的影响  

Effects of Zr Doping on Properties of ATO Nanometer Powder

作　　者：王小兰[1] 李历历[1] 段学臣[1] 

机构地区：[1]中南大学材料科学与工程学院,长沙410083

出　　处：《稀有金属与硬质合金》2004年第2期4-6,10,共4页Rare Metals and Cemented Carbides

摘　　要：采用Sol-Gel法制备了掺杂Zr的ATO纳米粉末,将未掺杂Zr的ATO粉末与已掺杂Zr的粉末进行了电阻、粒度大小、比表面积等方面的分析测量,并将这两种粉末进行了对比,结果发现掺杂Zr略使其电阻率增加,但能明显减小粒度,减少团聚。在电学性能等许可范围下掺杂适量的Zr将不失为一种减小粒度的途径。但通过计算粉末还是存在不少团聚体,所以解决团聚仍是今后进一步研究的问题。ATO nanometer-sized Zr-doped powder has been prepared by a sol-gel method.Analysis and comparison is made of the powder with or without Zr in respect of the resistivity,particle size,specific surface area.Results show that Zr-doped powder is characterized by larger resistivity,remarkably smaller particle size and less agglomerationIn the permissible range of electrical property character,proper Zr doping can reduce the particle size.The calculation results have shown that some aggregate remains in the powder,as is to be further studied for the solution.

关 键 词：掺杂Zr ATO 纳米粉末 电阻率 粒度 

分 类 号：TB383[一般工业技术—材料科学与工程]