纺织高校基础科学学报2016，Vol.29Issue(1)：66-71,6.DOI:10.13338/j.issn.1006-8341.2016.01.011
掺镧锆钛酸铅铁电阴极电子发射
(Pb,La)(Zr,Ti)O3 ferroelectric cathodes electron emission
摘要
Abstract
In order to study the electron emission characteristics and lifetime of the ferroelectric cathode,(Pb0.9 1 La0.09 )(Zr0.6 5 Ti0.3 5 )0.9 7 7 5 O3 (PLZT 9/65/35 )ferroelectric ceramic materials were prepared by conventional solid-phase synthesis process and silver electrodes patterns of ferroelectric cathodes were made by the silk screen printing technique craft.The relationship between the emission current excited by high-voltage pulses with a repetition frequency of 38Hz and launches was studied.The macro and micro structure of the cathode sample before and af-ter the experiments was recorded by taking pictures and scanning electron microscopy.The ex-periment results indicate that lifetime of PLZT 9/65/35 ferroelectric cathode exceeds 4 × 10 6 shots.The main reasons for the damage of cathode samples are the corrosion effect of surface plasmas formed in the process of strong electron emission.关键词
陶瓷/铁电阴极/电子发射Key words
ceramics/ferroelectric cathode/electron emission分类
信息技术与安全科学引用本文复制引用
王秋萍,张英堂,成鹏飞,凤飞龙..掺镧锆钛酸铅铁电阴极电子发射[J].纺织高校基础科学学报,2016,29(1):66-71,6.基金项目
The National Natural Science Foundation of China-NSAF (51277138,11204227) （51277138,11204227）
Doctoral Funds of Xi′an Polytechnic University(BS1436) （BS1436）
