Synthesis of Ba2TiOSi2O7 and Ba2TiOSi1.8Ge0.2O7 ferroelectric ceramics and the structure determination by Rietveld analysis
作者： Shiv Kumar Barbar , M. Roy
DOI: 10.1016/J.CERAMINT.2011.04.018
关键词:
摘要: Abstract Polycrystalline ceramic samples of pure fresnoite compound formula Ba 2 TiOSi O 7 and germanium (Ge 4+ ) doped 1.8 Ge 0.2 have been prepared by standard solid state reaction technique using high purity oxides carbonates. The was sintered at 1300 °C while the substituted into pellet form 1180 °C. formation single phase confirmed X-ray diffraction (XRD) structural parameters were refined Rietveld analysis. A good agreement between observed calculated pattern obtained from refinement noncentrosymmetric space group P 4 bm . bond distances along with angles atoms for both compounds as well position in unit cell which supports results. grain size investigated SEM micrographs. results are discussed detail.
elsevier.com
sci-hub.se 参考文章(24)
Yoshihiro Takahashi, Kenji Kitamura, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu, Second-order optical nonlinear and luminescent properties of Ba2TiSi2O8 nanocrystallized glass Applied Physics Letters. ,vol. 86, pp. 091110- ,(2005) , 10.1063/1.1879114
Masakazu Kimura, Yoshio Fujino, Tsutomu Kawamura, New piezoelectric crystal: Synthetic fresnoite (Ba2Si2TiO8) Applied Physics Letters. ,vol. 29, pp. 227- 228 ,(1976) , 10.1063/1.89045
Badri Rangarajan, Tom Shrout, Michael Lanagan, Crystallization Kinetics and Dielectric Properties of Fresnoite BaO–TiO2–SiO2 Glass–Ceramics Journal of the American Ceramic Society. ,vol. 92, pp. 2642- 2647 ,(2009) , 10.1111/J.1551-2916.2009.03255.X
John Melngailis, J. F. Vetelino, A. Jhunjhunwala, T. B. Reed, R. E. Fahey, E. Stern, Surface acoustic wave properties of fresnoite, Ba2Si2TiO8 Applied Physics Letters. ,vol. 32, pp. 203- 205 ,(1978) , 10.1063/1.89991
Yasuo Ochi, Fresnoite crystal structure in glass-ceramics Materials Research Bulletin. ,vol. 41, pp. 740- 750 ,(2006) , 10.1016/J.MATERRESBULL.2005.10.005
Masakazu Kimura, Elastic and piezoelectric properties of Ba2Si2TiO8 Journal of Applied Physics. ,vol. 48, pp. 2850- 2856 ,(1977) , 10.1063/1.324092
Nozomu Uchida, Satoshi Tanaka, Keizo Uematsu, Takumi Fujiwara, Takayuki Komatsu, Molecular orbital approach to the optical nonlinearities of fresnoite-type crystals Journal of The European Ceramic Society. ,vol. 27, pp. 531- 533 ,(2007) , 10.1016/J.JEURCERAMSOC.2006.04.105
Bin Zhu, Songmin Zhang, Geng Lin, Shifeng Zhou, Jianrong Qiu, Enhanced Multiphoton Absorption Induced Luminescence in Transparent Sm3+-doped Ba2TiSi2O8 Glass-ceramics Journal of Physical Chemistry C. ,vol. 111, pp. 17118- 17121 ,(2007) , 10.1021/JP0739061
M. C. Foster, D. J. Arbogast, R. M. Nielson, P. Photinos, S. C. Abrahams, Fresnoite: A new ferroelectric mineral Journal of Applied Physics. ,vol. 85, pp. 2299- 2303 ,(1999) , 10.1063/1.369541
Yoshihiro TAKAHASHI, Kenji KITAMURA, Satoru INOUE, Yasuhiko BENINO, Takumi FUJIWARA, Takayuki KOMATSU, Effect of heat-treatment temperature on optical properties of Ba 2TiSi2O8 nanocrystallized glasses Journal of the Ceramic Society of Japan. ,vol. 113, pp. 419- 423 ,(2005) , 10.2109/JCERSJ.113.419