MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Densification of TiO2 Nanopowders by Magnetic Pulsed Compaction
H. S. KimJ. G. LeeC. K. RheeU. H. JooS. J. Hong
Author information
JOURNALS FREE ACCESS

2010 Volume 51 Issue 3 Pages 578-581

Details
Abstract

In this study, sintered bodies of TiO2 nanopowders were fabricated by the combined application of magnetic pulsed compaction (MPC) and subsequent sintering and then, their density and shrinkage were investigated. The optimum mixing conditions of polyvinyl alcohol, water, and TiO2 nanopowder for compaction were found to be 2–3 mass% PVA, 15–20 mass% water, and 70–85 mass% of TiO2 powder in the sintered bulks. High pressure and rapid compaction using magnetic pulsed compaction (MPC) enhanced the density with the increasing MPC pressure up to 0.7 GPa and significantly reduced the shrinkage rate (about 15% in this case) of the sintered bulks compared to the general process (about 18%).

Information related to the author
© 2010 The Japan Institute of Metals and Materials
Previous article
feedback
Top