Fabrication of Ni - NiO composites from water based slurries

Mario Mora 2Rodrigo Moreno 1Antonio Javier Sanchez-Herencia 1

1. Consejo Superior de Investigaciones Cientificas ICV (ICV-CSIC), Kelsen nº5, Madrid 28049, Spain
2. Instituto de Ciencia de Materiales de Aragon CSIC. Universidad de Zaragoza, Zaragoza 50018, Spain

Abstract

In order to fabricate tapes of NiO and Ni-NiO composites, water based slurries that employed mixtures of those powders are prepared with a solid content of 37 vol%. The compositional ratio of Ni-NiO vary from 100 to 40 % of Ni  and 10 wt% of a latex emulsion is added as a binder in all the cases. Rheological characterization is performed in pure and binder containing slurries showing that viscosity of slurries increases with the NiO content. Green density of tapes decreases as the NiO relative content increases. Samples are sintered in air in order to fabricate NiO tapes or under flowing atmosphere to fabricate Ni-NiO composites. The 50Ni/50NiO slurry is selected to dipping experiment on traditional ceramic tiles in order to evaluate the capability to fabricate buffer coating for superconductors..

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Presentation: Oral at E-MRS Fall Meeting 2008, Symposium I, by Antonio Javier Sanchez-Herencia
See On-line Journal of E-MRS Fall Meeting 2008

Submitted: 2008-05-20 00:47
Revised:   2009-06-07 00:48
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