05 SPS中压力对PZT陶瓷准同型相界（MPB）的影响

俎达;张宇轩;刘宇飞;吴楠楠;欧阳顺利;

• 1:内蒙古科技大学材料与冶金学院

• 2:内蒙古科技大学理学院

• 
  

摘要(Abstract)：

采用放电等离子烧结的方法制备了准同型相界(Morphotropic Phase Boundary, MPB)组分的Pb(Zr_(0.52)Ti_(0.48))O_3压电陶瓷，研究了放电等离子的压力对材料中菱面体相和四方相比例的影响.研究结果表明：当在30 MPa下采用放电等离子烧结制备PZT压电陶瓷时，晶体结构处于菱面体相和四方相的混合状态，并且最接近于准同型相界(MPB),其自发极化达到：P_s=75.265μC/cm^(-2),压电性能也是所有压力中最高的：d_(33)=136.9 pC/N.证明了压力对于晶体结构有一定的影响，可以调控处在准同型相界附近材料中的菱面体相和四方相的比例，进一步提升材料的性能.

关键词(KeyWords)： PZT陶瓷;准同型相界(MPB);拉曼光谱;放电等离子烧结

基金项目(Foundation): 国家自然科学基金资助项目(11964025,11564031);; 内蒙古自治区重大基础研究开放课题资助项目(0406091701)

作者(Authors): 俎达;张宇轩;刘宇飞;吴楠楠;欧阳顺利;

DOI: 10.16559/j.cnki.2095-2295.2023.01.005

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