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http://dx.doi.org/10.3740/MRSK.2008.18.8.411

Densification of TiO2 Nano Powder by Magnetic Pulsed Compaction  

Kim, Hyo-Seob (Division of Advanced Materials Engineering, Kongju National University)
Lee, Jeong-Goo (Nuclear Materials Research Division, Korea Atomic Energy Research Institute)
Rhee, Chang-Kyu (Nuclear Materials Research Division, Korea Atomic Energy Research Institute)
Koo, Jar-Myung (Division of Advanced Materials Engineering, Kongju National University)
Hong, Soon-Jik (Division of Advanced Materials Engineering, Kongju National University)
Publication Information
Korean Journal of Materials Research / v.18, no.8, 2008 , pp. 411-416 More about this Journal
Abstract
In this research, fine-structure TiO2 bulks were fabricated in a combined application of magnetic pulsed compaction (MPC) and subsequent sintering and their densification behavior was investigated. The obtained density of $TiO_2$ bulk prepared via the combined processes increased as the MPC pressure increased from 0.3 to 0.7 GPa. Relatively higher density (88%) in the MPCed specimen at 0.7 GPa was attributed to the decrease of the inter-particle distance of the pre-compacted component. High pressure and rapid compaction using magnetic pulsed compaction reduced the shrinkage rate (about 10% in this case) of the sintered bulks compared to general processing (about 20%). The mixing conditions of PVA, water, and $TiO_2$ nano powder for the compaction of $TiO_2$ nano powder did not affect the density and shrinkage of the sintered bulks due to the high pressure of the MPC.
Keywords
magnetic pulsed compaction$TiO_2$ nano powder; densification; shrinkage;
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1 A. Kumpmann, B. Gnther and H. -D. Kunze, Mater. Sci. Eng., A168, 165 (1993)   DOI   ScienceOn
2 S. J. Hong, G. H. Lee, C. K. Rhee, W. W. Kim and K. S. Lee, Mater. Sci. Eng., A449-451, 401 (2007)   DOI   ScienceOn
3 S. -C. Liao, K. -D. Pae and W. -E. Mayo, Mater. Sci. Eng., A204, 152 (1995)   DOI   ScienceOn
4 S. Zhao, X. Song, I. Zang and X. Liu, Mater. Sci. Eng., A473, 323 (2008)   DOI   ScienceOn
5 C. C. Jia, H. Tang, X. Z. Mei, F.Z. Yin and X.H. Qu, Mater. Lett., 59, 2566 (2005)   DOI   ScienceOn
6 B. H. Rabin, G. E. Korth and R. L. Williamson, J. Am. Ceram. Soc., 73, 2156(1990)   DOI
7 R. A. Andrievski, Int. J. Powder Met., 30, 59 (1994)
8 H. W. Lee, J. H. Lee, H. W. Jun and H. Moon, J. Kor. Ceram. Soc., (in Koran), 37, 1072 (2000)
9 J. -H. Song, J. -S. Lee, I. -S. Park and D. -Y. Lim, J. Kor. Ceram. Soc., (in Koran), 37, 625 (2000)
10 C. Qianwang, Q. Yitai, C. Zuyao, Z. Guien and Z. Yuheng, Mater. Sci. Eng., B31, 261 (1995)   DOI   ScienceOn
11 M. E. Washburn, Am. Ceram. Soc. Bull., 67(2), 356 (1998)