摘要
将电磁成形技术用于粉末材料致密度研究中,以PZT粉末为研究对象,对其进行低电压电磁压制成形。分析了线圈匝数和放大器锥角等因素对压坯和制品致密度的影响。试验结果表明:增加放电线圈匝数能够提高陶瓷坯体和制品的致密度;当放大器锥角为45°时,陶瓷粉末的压制密度和烧结密度最大。低电压电磁压制成形方法比静力压制成形方法更能细化制品组织并提高某些压电性能。
Electromagnetic forming was applied to the powder material compaction, and PZT powder was compacted with low-voltage electromagnetic compaction. The effects of structure of the coils and taper of the amplifier on the green density and sintered density of ceramic powder PZT were analyzed. The experimental results indicate the relative density increases when the numbers of the coils are increased. When the taper of the amplifier is 45°, the density will be the best. This method can improve the piezoelectric properties and thin the microstructure, compared with the static compaction.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2006年第19期2063-2066,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目(50375114)
塑性成形模拟及模具技术国家重点实验室开放基金资助项目(05-03)
关键词
低电压
电磁压制
PZT粉末
密度
low-voltage
electromagnetic forming
PZT powder
density
