Browse > Article
http://dx.doi.org/10.4150/KPMI.2010.17.2.101

Research on Synthesis and Sintering Behavior of Nano-sized (Pb, La)TiO3 Powders Using Mechano Chemical Process  

Lee, Young-In (Department of Fine Chemical Engineering, Hanyang University)
Goo, Yong-Sung (Department of Fine Chemical Engineering, Hanyang University)
Lee, Jong-Sik (Department of Fine Chemical Engineering, Hanyang University)
Choa, Yong-Ho (Department of Fine Chemical Engineering, Hanyang University)
Publication Information
Journal of Powder Materials / v.17, no.2, 2010 , pp. 101-106 More about this Journal
Abstract
In this study, we successfully synthesized a nano-sized lanthanum-modified lead-titanate (PLT) powder with a perovskite structure using a high-energy mechanochemical process (MCP). In addition, the sintering behavior of synthesized PLT nanopowder was investigated and the sintering temperature that can make the full dense PLT specimen decreased to below $1050^{\circ}C$ by using $Bi_2O_3$ powder as sintering agent. The pure PLT phase of perovskite structure was formed after MCP was conducted for 4 h and the average size of the particles was approximately 20 nm. After sintered at 1050 and $1150^{\circ}C$, the relative density of PLT was about 93.84 and 95.78%, respectively. The density of PLT increased with adding $Bi_2O_3$ and the specimen with the relative densitiy over 96% were fabricated below $1050^{\circ}C$ when 2 wt% of $Bi_2O_3$ was added.
Keywords
Lanthanum-modified lead-titanate; Perovskite structure; Ferroelectric ceramic; Sintering agent;
Citations & Related Records
연도 인용수 순위
  • Reference
1 B. Jaffe, R. S. Roth and S. Marzullo: J. Res. Nat. Bur. Stand., 56 (1955) 239.
2 T. Y. Kim and H. M. Jang: Appl. Phys. Lett., 77 (2000) 3824.   DOI   ScienceOn
3 R. Tickoo, R. P. Tandon, N. C. Mehra and P. N. Kotru: Mater. Sci. Eng. B-Soild, 94 (2002) 2.
4 J. Chen, X. Xing, R. Yu, J. Deng and G. Liu: J. alloys and compounds, 388 (2005) 309.
5 J. Fang, J. Wang, S. C. Ng, C. H. Chew and L. M. Gan: J. Materials Science, 34 (1999) 1943.   DOI
6 X. Junmin, J. Wan and T. Weiseng: J. alloys and compounds, 308 (2000) 139.   DOI   ScienceOn
7 B. D. Cullity: Elements of X-Ray Diffraction, 2nd ed., Addison-Wesley Pub. Co., Canada (1978).
8 H. Zhang, S. Jiang, K. Kajiyoshi and J. Xiao: J. Am. Ceram. Soc. 93 (2010) 750.   DOI   ScienceOn
9 G. H. Jonker and J. H. van Santen: Chem. Weekblad, 43 (1947) 672.
10 S. M. Park, M. S. Kim and C. T. Lee: J. Korean Ind. Eng. Chem., 11 (2000) 917 (Korean).