摘要
以ZrO_2、Pb_3O_4和TiO_2为原料(Nb_2O_5为掺杂剂),采用柱面冲击波装置合成了Pb(Zr_(0.95)Ti_(0.05)) O_3(PZT95/5)粉体,并对粉体活性及其烧结性能进行了研究。XRD及SEM分析表明,利用冲击波的高温高压作用可以合成单一钙钛矿相PZT95/5粉体,并使得粉体发生了晶粒细化与晶格畸变,这有利于增强粉体活性,促进低温活化烧结。该粉体在1100℃的低温下即可烧结成瓷;在1200℃烧结3h,陶瓷体致密度达到最大,约7．79g/cm^3,且晶粒尺寸相近,分布均匀。中国工程物理研究院流体物理研究所冲击波物理与爆轰波物理实验室。
Pb （Zr0.95 Ti0.05 ） 03 （PZT95 / 5） powder was synthesized from the mixture of Pb3 04, ZrO2 and TiO2 （wit h Nb2O5 as dopant） by using a cylindrical shock-loading device, and the activity and sintering characteristics of PZT95/5 powder were studied. The analyses of XRD and SEM indicate that, the single-phase perovskite PZT95/ 5 powder can be successfully prepared with the effects of high temperature and high pressure of shock wave. The grain refinement and lattice distortion were observed in shock synthesis PZT95/5 powder, which can enhance the activity of powder and promote low temperature activated sintering of PZT95/5 ceramic. The ceramic can be sinered at 1100℃ ,and the hightest density of 7.79g/cm^3 with the microstructure of equal grains and homogeneous distribution was obtained when ceramic sintered at 1200℃ for 3h.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第4期525-528,共4页
Journal of Functional Materials
基金
国家自然科学基金(10476023)
四川省科技厅科学基金(03JY-017)
