Anantharaman, M R; Mathew, George; Philip, Kurian(Wiley Subscription Services, Inc., A Wiley Company, September 22, 2010)
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Abstract:
Ultra fine nickel ferrite have been synthesized
by the sol-gel method. By heat treating different portions
of the prepared powder separately at different
temperatures, nano-sized particles of nickel ferrite with
varying particle sizes were obtained. These powders were
characterised by the X-ray diffraction and then incorporated
in the nitrile rubber matrix according to a specific
recipe for various loadings. The cure characteristics and
the mechanical properties of these rubber ferrite composites
(RFCs) were evaluated. The effect of loading and the
grain size of the filler on the cure characteristics and tensile
properties were also evaluated. It is found that the
grain size and porosity of the filler plays a vital role in
determining the mechanical properties of the RFCs
Anantharaman, M R; Soloman, M A; Philip, Kurian; Joy, P A(Wiley Periodicals, September 26, 2002)
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Abstract:
Fine particles of barium ferrite (BaFe12O19)
were synthesized by the conventional ceramic technique.
These materials were then characterized by the X-ray diffraction
method and incorporated in the natural rubber matrix
according to a specific receipe for various loadings of
ferrite. The rubber ferrite composites (RFC) thus obtained
have several applications, and have the advantage of molding
into complex shapes. For applications such as microwave
absorbers, these composites should have an appropriate
dielectric strength with the required mechanical and
magnetic properties. The N330 (HAF) carbon black has been
added to these RFCs for various loadings to modify the
dielectric and mechanical properties. In this article we report
the effect of carbon black on the mechanical and dielectric
properties of these RFCs. Both the mechanical and dielectric
properties can be enhanced by the addition of an appropriate
amount of carbon black
Description:
Journal of Applied Polymer Science, Vol. 89, 769–778 (2003)