Synthesis and microwave absorption studies of ferrite paint |
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| Authors: | S M Abbas R P R C Aiyar OM Prakash |
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| Affiliation: | (1) Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, 400 076 Mumbai, India;(2) ACRE, Indian Institute of Technology, 400 076 Mumbai, India |
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| Abstract: | A new hexaferrite composition, BaCo
x
Si
x+y
Fe12−2x−y
O19 (x=0·90;y=0·05), in fine (∼μ size) powder form, is prepared. Ferrite paint formulations are made by dispersing this powder in different
weight proportions in an epoxy resin. X-band (8–12 GHz) microwave absorption behaviour of the paint coatings of different
thicknesses is studied. Remarkably high value, ≥10 dB, of signal absorption at 9·5 GHz is observed for a coating thickness
of 0·60 mm with a ferrite fill factor of 57 wt%.
Most of this work, in a poster form, was presented at the 8th AGM of MRSI, BARC, Mumbai, February 10–12, 1997. The paper was
adjudged the best for poster paper award |
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| Keywords: | Hexaferrite microwave absorption ferrite paint |
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