Electrophoretic deposition of spherical carbonyl iron particles on carbon fibers as a microwave absorbent composite

Hamed Salimkhani*, Paria Palmeh, Aidin Bordbar Khiabani, Elnaz Hashemi, Saba Matinpour, Hadi Salimkhani, Mehdi Shahedi Asl

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Carbonyl iron (CIPs) micron size spherical particles were deposited on carbon fibers by electrophoretic deposition method (EPD). A well stabilized suspension of CIPs was prepared in acetone-ethanol media and two different stabilizer of Iodine and Trietanolamine (TEA) were used to investigate stability of suspension. X-ray Diffractometer (XRD) was employed to study structure of CIPs, CFs and CFs/CIPs composite. Field Emission Scanning Electron Microscopy (FE-SEM) images were taken to see the morphology of CFs and deposited particles. Dynamic Light Scattering (DLS) and zeta potential test were carried out to study the stability of particles and also to see the average particle size of powder. To investigate magnetic and reflection loss properties, Vibrating Sample Magnetometer (VSM) and Vector Network Analyzer (VNA) were used, respectively. Uniformly coated fibers were selected to make composites and results revealed that the best Reflection Loss (RL) was related to CFs coated for 20 minutes in a bath containing iodine with a layer thickness of 2 mm. Maximum recorded RL was found to be -13.8 dB at frequency of 9.22 GHz.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalSurfaces and Interfaces
Volume5
DOIs
Publication statusPublished - 1 Dec 2016
Externally publishedYes

Keywords

  • Carbon fibers
  • Carbonyl iron
  • Electrophoretic deposition
  • Microwave absorption

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