Study of the Aurivillius phases Bi_4Sr_(n-3)Ti_nO_(3n+3) (n = 4, 5) synthesized by mechanochemical activation

P. Ferrer; J.E. Iglesias; A.P. Ayala; I. Guedes; A. Castro

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Study of the Aurivillius phases Bi_4Sr_(n-3)Ti_nO_(3n+3) (n = 4, 5) synthesized by mechanochemical activation

机译：力学化学活化合成Bi_4Sr_（n-3）Ti_nO_（3n + 3）（n = 4、5）Aurivillius相的研究

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The mechanochemical activation method allows one to obtain the Aurivillius phases Bi_4SrTi_4O_(15) and Bi_4Sr_2Ti_5O_(18) with a significant decrease in the temperature of synthesis and reaction time, as compared to the solid-state method, by supplying mechanical energy to the initial reagents. The method leads to homogeneous, activated precursors, whose particle size is reduced to around 250 nm. Further thermal annealing makes crystallinity and particle size to increase. The products are characterized by Raman spectroscopy, X-ray diffraction, thermal analysis and scanning electron microscopy.

机译：通过机械化学活化方法，通过向初始试剂提供机械能，与固态方法相比，可以在合成温度和反应时间显着减少的情况下获得Aurivillius相Bi_4SrTi_4O_（15）和Bi_4Sr_2Ti_5O_（18）。。该方法产生均质的活化前体，其粒径减小至约250 nm。进一步的热退火使结晶度和粒度增加。产品通过拉曼光谱，X射线衍射，热分析和扫描电子显微镜进行表征。

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来源
《Solid State Communications》 |2005年第12期|p.621-626|共6页
作者
P. Ferrer; J.E. Iglesias; A.P. Ayala; I. Guedes; A. Castro;
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作者单位

Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
A. Ferroelectrics; B. Mechanochemical activation; C. Raman spectroscopy; E. X-ray;

机译：A.铁电;B.机械化学活化;C．拉曼光谱;E. X光;

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2. Processing and dielectric properties of Bi_4Sr_(n-3)Ti_nO_(3n+3) (n = 3, 4 and 5) ceramics obtained from mechanochemically activated precursors [J] . P. Ferrer, M. Alguero, J.E. Iglesias Journal of the European Ceramic Society . 2007,第13a15期

机译：从机械化学活化的前驱体获得的Bi_4Sr_（n-3）Ti_nO_（3n + 3）（n = 3、4和5）陶瓷的加工和介电性能
3. HREM studies of intergrowths in Sr_2[Sr_(n-1)Ti_nO_(3n+1)] Ruddlesden-Popper phases synthesized by mechanochemical activation [J] . Teresa Hungria, Ian MacLaren, Hartmut Fuess, Materials Letters . 2008,第17a18期

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Study of the Aurivillius phases Bi_4Sr_(n-3)Ti_nO_(3n+3) (n = 4, 5) synthesized by mechanochemical activation

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