Physical properties of the Li-doped Silver Tantalum Niobate Ceramics

• Main Authors: Jian-han Lee, 李建翰
• Other Authors: Yung-Der Juang
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/13988782604628792929

碩士 === 國立臺南大學 === 材料科學系碩士班 === 99 === This research is composed of two parts. First, the ceramics of AgNbO3 sintered for 1000℃,1050℃,1100℃ and 1200℃ are investigated by XRD、SEM、DSC、dielectric constant and Raman scattering to evaluate. Second, the phase transition behavior ceramics of Ag1-xLixNb0.9Ta0.1O3 solid solution were sintered for Li concentration range 0≦x≦0.15. We investigate the phase transition behavior and dielectric properties of Li-doped with different concentration by using XRD、SEM、DSC、dielectric constant and Raman scattering. As a result, we can find the powder have excellent perovskite structure,with increasing lithium contents the vibrational mode is increase. M3-O1 and O2-T phase transition temperature is increase. The maximum value of the dielectric constant at x＝0.1 was 1273, and the dielectric loss value was controlled below 0.008.