"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Electromagnetic wave absorption properties of polymer derived SiCN ceramics doped with Co3C particles

S. WANG1,2, H. Y. GONG1,2,* , Y . ZHANG1,2, M. ZASHFAQ1,2, J. JING1,2

Affiliation

  1. Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
  2. Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan 250061, P. R. China

Abstract

SiCN ceramics doped with magnetic particles Co3C were prepared by polymer derivatization. On this basis, the composition and microstructures of SiCN based composite ceramics pyrolyzed at different temperatures were studied. The electromagnetic parameters and the electromagnetic wave absorption performance at 2-18 GHz were analyzed. The results show that there was a minimum reflection loss (RLmin) value of -14 dB at 16.5GHz and an effective absorption bandwidth (RL<-10dB) of 0.6 GHz when the pyrolysis temperature was 1300 ℃ and the sample thickness was 2 mm. This indicates that SiCN ceramics doped with Co3C particles can be a potential candidate in the field of electromagnetic wave absorbing materials.

Keywords

Co3C, SiCN ceramics doped with Co3C particles, Different pyrolysis temperatures, Electromagnetic wave absorption properties.

Citation

S. WANG, H. Y. GONG, Y . ZHANG, M. ZASHFAQ, J. JING, Electromagnetic wave absorption properties of polymer derived SiCN ceramics doped with Co3C particles, Optoelectronics and Advanced Materials - Rapid Communications, 14, 11-12, November-December 2020, pp.528-537 (2020).

Submitted at: June 3, 2020

Accepted at: Nov. 25, 2020