New Invention Profile
| Publication No: | IN202411009601 [India] | Application No: | IN202411009601 |
| Title: | Process for preparation of ferrite-based treated graphite composite and application thereof | ||
| Publication Date: | 22-08-2025 | File Date: | 12-02-2024 |
| Inventor(s): | Mamata Mohapatra; Sushree Pattnaik; Bhavya Elayidathu Veedu; Raveendranath Unnikrishnan Nair; Santosh Deb Barma; Ashok Kumar Sahu; Balamati Choudhury; Om Ranjan | ||
| IPC Classification: | B01J27/24, C02F1/30, C02F1/72 | ||
| Abstract: | The present invention relates to electromagnetic interference (EMI) shielding composition exhibits a total shielding effect greater than 16-20 dB comprising carbon source and transition metal-based spinel ferrite, wherein the carbon source and transition metal-based spinel ferrite in a ratio ranging from 30-40 wt% to 70-60 wt%. More particularly, the present invention relates to bulk production of carbon source selected from treated graphite and transition metal-based spinel ferrite selected from cobalt zinc ferrite for using as an electromagnetic interference (EMI) shielding material in the X band, which encompasses microwave radiation frequencies ranging from 8 GHz to 12 GHz. The present innovation provides an enhanced EMI shielding composition comprising treated graphite as carbon source and cobalt zinc ferrite as transition metal-based spinel ferrite in the ratio of 30-40:70-60 wt % having attenuation shielding effectiveness (SEA) in the order of 16-20dB. |
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CSIR-Institute of Minerals and Materials Technology[CSIR-IMMT]
: dir[at]immt[dot]res[dot]in
:91-674-2567126, 2379401
:https://www.immt.res.in
: dir[at]immt[dot]res[dot]in
:91-674-2567126, 2379401
:https://www.immt.res.in
Industrial Applications
Electromagnetics [Physics]
Magnetism [Physics]