Processing optimization and sintering time dependent magnetic and optical behaviors of Aurivillius Bi5Ti3FeO15 ceramics
Processing optimization and sintering time dependent magnetic and optical behaviors of Aurivillius Bi5Ti3FeO15 ceramics
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Aurivilius Bi5Ti3FeO15 陶瓷的加工优化和烧结时间相关的磁和光学行为
DOI：
10.1063/1.4775800
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发表时间：
2013-01
影响因子：
3.2
通讯作者：
Chu, Junhao
中科院分区：
文献类型：
--
作者：
Sun, Lin;Wu, Jing;Ren, Qing;Xu, Wenfei;Yang, Jing;Meng, Xiangjian;Tang, Xiaodong;Duan, Chun-Gang;Chu, Junhao
采用传统固相反应法，通过优化Bi 2 O3的添加量和烧结时间，合成了Aurivillius Bi 5 Ti 3FeO 15（BTF）陶瓷。详细研究了它们的结构、磁性和光学性质。确定了Aurivillius BTF陶瓷的最佳烧结工艺为：3 wt. %过量的Bi 2 O3以补偿Bi在1050 °C下挥发240分钟（BTF-240 M）。从X射线衍射（XRD）和扫描电子显微镜数据的BTF陶瓷的显微结构和晶体结构的烧结时间的依赖性很小。然而，磁性和光学性能与烧结时间密切相关。这些BTF陶瓷的整体磁行为是超顺磁性（SPM），而存在反铁磁（AFM）相互作用的明确线索。然而，SPM行为是本征的还是由少量的尖晶石Fe_3O_4杂质相引起的，并不能从XRD检测中完全排除。
Aurivillius Bi5Ti3FeO15 (BTF) ceramics were synthesized using the conventional solid state reaction method by optimizing excess of Bi2O3 and sintering time. Their structures, magnetic, and optical properties were investigated in detail. The optimum process to sinter pure Aurivillius BTF ceramics was confirmed to be 3 wt. % excess Bi2O3 to compensate the Bi volatilization at 1050 °C for 240 min (BTF-240M). The microstructure and crystalline structure of the BTF ceramics had little dependence on the sintering time from the x-ray diffraction (XRD) and scanning electron microscopic data. Nevertheless, the magnetic and optical properties were closely related with the sintering time. The overall magnetic behavior of these BTF ceramics was superparamagnetic (SPM), whereas there were unambiguous clues for the existence of antiferromagnetic (AFM) interactions. However, whether the SPM behavior was intrinsic or arised from a tiny amount of spinel Fe3O4 impurity phase cannot be thoroughly ruled out in the XRD detect...
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影响因子：
4
作者：
Zhigao Hu;Y. W. Li;M. Zhu;Zhifeng Zhu;J. Chu
通讯作者：
Zhigao Hu;Y. W. Li;M. Zhu;Zhifeng Zhu;J. Chu
影响因子：
4
作者：
S. Vijayanand;H. S. Potdar;P. Joy
通讯作者：
S. Vijayanand;H. S. Potdar;P. Joy
影响因子：
1.7
作者：
P. G. Snyder;Y. Xiong
通讯作者：
P. G. Snyder;Y. Xiong
DOI：
10.1088/0953-8984/11/16/014
发表时间：
1999-04
期刊：
Journal of Physics: Condensed Matter
影响因子：
--
作者：
A. Srinivas;S. Suryanarayana;G. Kumar;Mahesh Kumar
通讯作者：
A. Srinivas;S. Suryanarayana;G. Kumar;Mahesh Kumar
影响因子：
3.7
作者：
A. Snedden;C. Hervoches;P. Lightfoot
通讯作者：
A. Snedden;C. Hervoches;P. Lightfoot