Sol-Gel Processing and Characterization of PLZT Ferroelectric

• Main Authors: Yu-Fu Kuo, 郭有福
• Other Authors: Tseung-Yuen Tseng
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/06003006508319644804

碩士 === 國立交通大學 === 應用化學系 === 81 === Cracking-free transparaent ferroelectric polycrystalline PLZT 8/65/35thin films were prepared by spin-coating solution of complex alkoxides.The preparation of stock solution, firing conditions,and annealing of the films were described. The influence of DCCA formamide and acid catalysts on the micro- structures of the films are dicussed. The dielectric constants was about 700 when the sample sintered at 650.degree.C for 20 min. The remanent polarization and coercive filed were 36.7uC/ cm2 and 14.3kV/cm,respectively when the sample sintered at 600 .degree.C for 30 min.The effect of annealing time, heat rate, soaking temperature,and atmosphere on the film's properties were also studied by using various analysis techiques.