An XPS study on the degradation of lead magnesium niobate-based relaxor ferroelectrics during nickel electroplating

被引：26

作者：

Cao, JL ^{[1
]}

Li, LT ^{[1
]}

Gui, ZL ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2001年 / 11卷 / 04期

关键词：

D O I：

10.1039/b006953l

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Resistance degradation of Pb(Mg1/3Nb2/3)O-3-Pb(Zn1/3Nb2/3)O-3-PbTiO3 (PMZNT) relaxor ferroelectrics during nickel electroplating was investigated by resistivity measurement and X-ray photoelectron spectroscopy (XPS) through the appearance of changes in Nb 3d and Pb 4f spectra. It was found that the insulation resistance of the PMN-based ceramics decreased after electroplating. The XPS analysis showed that the ceramic materials had been reduced by hydrogen during electroplating and Nb4+ and metallic Pb were generated. As a result, oxygen vacancies and free electrons were created and, therefore, increased the conductivity of the ferroelectrics. It was also found that Nb5+ reduction was prior to Pb2+ reduction. On the basis of our experiments, two conduction mechanisms involved in the hydrogen-induced resistance degradation were established.

引用

页码：1198 / 1200

页数：3

共 19 条

[1] BARRIER LAYER MULTILAYER CERAMIC CAPACITOR PROCESSING - EFFECTS OF TERMINATION AND PLATING PROCESS PARAMETERS [J].