%0 Journal Article
%A Yoon, S.
%A Dornseiffer, J.
%A Xing, Y.
%A Grüner, D.
%A Shen, Z.
%A Iwaya, S.
%A Pithan, C.
%A Waser, R.
%T Spark plasma sintering of nanocrystalline BaTiO3-powders: Consolidation behavior and dielectric characteristics
%J Journal of the European Ceramic Society
%V 31
%@ 0955-2219
%C Amsterdam [u.a.]
%I Elsevier Science
%M PreJuSER-15642
%P 1723 - 1731
%D 2011
%Z This work was supported by the Korea Research Foundation Grant funded by the Korean Government (KRF-2007-D00124). S. Yoon acknowledges support from COST Action 539 (COST-STSM-539-03589) of the European Union. NAMICS Corporation, Niigata (Japan) is gratefully acknowledged for financial support within a common collaboration project. The authors are grateful to Dr. Wessel Egbert for FE-SEM and to Dr. Detlev Hennings for helpful discussion and comments.
%X BaTiO3 nanopowders prepared by two different wet chemical routes, one based on microemulsion-mediated synthesis (M-BT) and the other one on the alkoxide-hydroxide method (A-BT) were consolidated by spark plasma sintering (SPS). The densification process, the linear shrinkage rates and the relative densities achieved were strongly dependant on the synthetic route. The results show that fully densified BaTiO3 ceramics with a grain size of about 200 nm can be obtained in both cases by controlling the sintering temperature during the SPS process. The study of dielectric properties revealed that M-BT derived ceramics show higher permittivity values compared to those obtained for A-BT. The influence of the barium/titanium ratio on the sintering behavior and the dielectric properties is discussed. (C) 2011 Elsevier Ltd. All rights reserved.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000291143400023
%R 10.1016/j.jeurceramsoc.2011.03.035
%U https://juser.fz-juelich.de/record/15642