Light Scattering Properties for PLZT Transparent Ceramics of Different Zr/Ti Ratios
Lead lanthanum zirconate titanate (PLZT) transparent ceramics present an attractive electrically controlled light scattering performance with a high transmittance and large contrast ratio.PLZT ceramics of 8 mole% lanthanum with different Zr/Ti ratios (Zr/Ti=68/32,70/30,72/28) were prepared by the hot pressing method to figure out the influence of Zr/Ti ratios to the light scattering performance.X-ray diffraction patterns confirm that all the samples are perovskite structure with no secondary impurity phase detected.The SEM shows that all the samples tend to fracture transgranularly,exhibiting fully dense,uniform microstructures.All the three compositions show double tending slim hysteresis loops which is due to antiferroelectric phase coexisted.Besides,within the range of near-infrared to ultraviolet wavelength,all the PLZT samples show a high transmittance.While the Zr/Ti ratio increasing from 68/32 to 72/28,the transmittance reduced value RT of the sample decreases gradually (λ:632.8 nm).PLZT (8/68/32) sample shows a maximum RT,it promises a good application in optical modulators,goggles and so on.
PLZT Light Scattering Ferroelectric Materials Perovskite
Bin Xia Xiyun He Xinsen Zheng Pingsun Qiu Wenxiu Cheng Xia Zeng
Key Laboratory of Inorganic Functional Materials and Devices,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
1537-1540
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）