The Effect of Mn on the Electrical Properties of the High Curie Temperature (Ba,Pb)TiO3

• Main Authors: Chen, Shih Hsiung, 陳世雄
• Other Authors: Chen,Ying Chung
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/63492072010245026696

碩士 === 國立中山大學 === 電機工程研究所 === 82 === The La-doped Barium-Lead Tintanate specimens used forthis inves- tigation were prepared by solid stste technique.The sintering proceeded in air and the high-Curie-point PTCR ceramics were pre -pare.Frequency-depenent complex impedances were measured in (Ba ,Pb)TiO3.The increase in the grain boundary resistanceis due to the increas in doping Mn.The average grain size was obtaind from SEM to ensure a meas value for the grain size.The realative per- mittivity measured at room temperature and high temperature.We can calculate the surfce energy states Ns.Increasing the Mn con- centration resulted resulted in the increased with Ns.