Phase transitions in PLZT ceramics observed by in-situ Raman spectroscopy

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	Phase transitions in PLZT ceramics observed by in-situ Raman spectroscopy
	Zhang, ; Liu, Ying ; Liu, Yi-Xuan ; Cheng, X ; Zhang, Y ; Zhang S(张飒) ; Cheng X(程璇) ; Zhang Y(张颖)
刊名	http://dx.doi.org/10.3724/SP.J.1077.2014.13374
	2014
关键词	Ferroelectric ceramics Phase transitions Raman spectroscopy Solid state reactions
英文摘要	The PLZT ceramics (atomic ratio Zr/Ti≈52/48, doped with small amounts of La) were prepared by conventional solid state reaction technique and identified to be pure perovskite phase by XRD. To observe the phase transition in the PLZT ceramics, the in-situ Raman spectra were measured at different temperatures. Accordingly, the variations of characteristic Raman shifts and intensities of the modes with temperatures were obtained. It is confirmed that two types of phase transitions near morphotropic phase boundary (MPB) occurred at 0°C from rhombohedral to tetragonal and at 350°C from tetragonal to cubic, in the temperature range from -200°C to 600°C. What's more, the phase transitions for rhombohedral from low. to high-temperature phases and mixed phases may take place near -150°C and 250°C, respectively.
语种	英语
出版者	SCIENCE PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89674]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhang,,Liu, Ying,Liu, Yi-Xuan,et al. Phase transitions in PLZT ceramics observed by in-situ Raman spectroscopy[J]. http://dx.doi.org/10.3724/SP.J.1077.2014.13374,2014.
APA	Zhang,.,Liu, Ying.,Liu, Yi-Xuan.,Cheng, X.,Zhang, Y.,...&张颖.(2014).Phase transitions in PLZT ceramics observed by in-situ Raman spectroscopy.http://dx.doi.org/10.3724/SP.J.1077.2014.13374.
MLA	Zhang,,et al."Phase transitions in PLZT ceramics observed by in-situ Raman spectroscopy".http://dx.doi.org/10.3724/SP.J.1077.2014.13374 (2014).