摘要
根据新的压电-导电原理和焦耳定律,将压电陶瓷粉体复合到传统的氯化丁基橡胶阻尼材料中,制作出了性能更好的新型阻尼材料。实验结果表明,复合材料中的压电陶瓷能将机械能转化为电能,并通过微电路耗散出去。因此,通过压电效应-焦耳定律、氯化丁基橡胶的粘弹性阻尼及陶瓷粉体、乙炔碳黑粒子和橡胶分子之间的粒间摩擦、界面摩擦,复合材料可有效地阻尼外界的振动能。
On the basis of the new piezoelectric effect and conductive mechanism and Joule＇s law, the novel damping composites with better performance is prepared with piezoelectric ceramic powder compounded into traditional mechanical damping chloro-butyl rubber. The experimental results showed that the piezoelectric ceramic component of the composite materials could convert mechanical energy into electrical enengy and this electrical energy was dissipated by a conductive microcircuit. The composite materials therefore effectively dissipated the input mechanical energy via the claming provided by piezoelectric effect and Joule＇s law, as well as the conventional viscoelastic damping provided by chloro-butyl rubber and interparticle friction or boundary friction provided by ceramic powder, acetylene black grains and rubber molecules.
出处
《压电与声光》
CSCD
北大核心
2006年第4期461-463,共3页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10276031)
关键词
氯化丁基橡胶
压电效应
焦耳定律
复合材料
阻尼
chloro-butyl rubber
piezoelectric effect
Joule＇s law
composite materials
damping
