Skip to main content
padlock icon - secure page this page is secure

Open Access Preparation and infrared/millimeter wave attenuation properties of magnetic expanded graphite by explosive combustion

Download Article:
(PDF 13,668.1 kb)
A composite based on magnetic iron particles and expanded graphite was prepared by an explosive combustion and blending method. It was then introduced into a smoke canister, and colloidal silicone rubber (RTV-615) was used as an infrared and millimeter wave absorber. The infrared shielding effectiveness was investigated by measuring the thermal extinction using the smoke canister for dynamic testing with a thermal imager in the 8–12 μm range. The millimeter wave absorbing properties were investigated by measuring the transmission loss in the 32–38 GHz microwave frequency range with a network analyzer using the free space method. The effects of structure, media material type (carbonyl iron powder and Fe3O4 and weight ratio on the infrared/millimeter wave attenuation properties of magnetic expanded graphite were also studied. The results showed that the magnetic expanded graphite had excellent infrared (8–12 μm) and millimeter wave (35 GHz) interference abilities and could be used as a new material for obscuring infrared and millimeter waves. For magnetic expanded graphite with a concentration of 2 mg/cm3, the thermal extinction reached 31 °C, and at a weight ratio (expanded graphite:magnetic iron particles) of 2:1 (3 mg/cm3 and a thickness of 1.5 mm, the minimum transmission loss value was –10.8 dB in the 32–38 GHz range.

26 References.

No Supplementary Data.
No Article Media
No Metrics


Document Type: Research Article

Publication date: February 1, 2016

More about this publication?
  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more