利用平面装置冲击合成PZT95/5粉体的研究

Shock Synthesis of PZT 95/5 Powder by Planar Devices

利用平面冲击波加载装置,以Pb3O4、ZrO2和TiO2为原料,Nb2O5为掺杂剂,合成了粒度均匀的亚微米级PZT 95/5粉体。实验通过改变飞片的厚度来调节其击靶速度,从而获得不同的冲击条件,并且实验的冲击条件均达到了PZT 95/5的合成要求。X射线衍射(XRD)、扫描电子显微镜(SEM)分析表明,冲击合成后的样品存在明显的晶粒细化效应,同时产生了严重的晶格畸变和大量的晶格缺陷。

Homogeneous submicron PZT 95/5 powder was synthesized from the mixtures of Pb3O4, ZrO2 and TiO2 with Nb2 Os as an additive by a planar shock wave-loading device. The impact velocities of flyer plates on sample targets were adjusted by their thickness to obtain different shock conditions and to achieve the synthesis of PZT 95/5 powders in experiments. The analyses of XRD and SEM show that the shock-synthesized samples obviously became fine, and heavy distortion and many defects of lattices were formed in the process of shock compression.