A review of absorption properties in silicon-based polymer derived ceramics

Wenyan Duan, Xiaowei Yin, Quan Li, Lorenz Schlier, Peter Greil, Nahum Travitzky

Research output: Contribution to journalArticlepeer-review

94 Citations (Scopus)

Abstract

Design and development of advanced materials for electromagnetic applications and bringing these materials into use is one of the most challenging tasks of materials engineering. Silicon-based polymer derived ceramics (PDCs) are natural candidates for these demanding applications due to their very attractive microstructure and properties. Compared with sintered technical ceramics, such as SiC, Si3N4, Al2O3 or ZrO2, polymer derived ceramics offer the possibility of flexible plastic-technical processing, for instance by means of injection molding or extrusion without the employment of additional binder systems. The chemical synthesis permits a purposeful optimization of the polymers with respect to workability, ceramic yield and composition by the substitution of different elements in the basic structure as well as the organic side groups. In many cases the microstructure of PDCs characterized by homogeneous distribution of semiconducting or conducting nano-phases in the amorphous matrix. This can lead to the good microwave absorbing properties. Thus, those materials may not only satisfy the impedance matching but also rapidly attenuate electromagnetic waves. The absorption properties of PDCs can be easily tailored by the design of the molecular precursor, changes in morphology, and volume fraction of the filler particles. Different classes of preceramic polymers are briefly introduced and their absorption properties with adjustable phase compositions and microstructures are presented in this review.

Original languageEnglish
Pages (from-to)3681-3689
Number of pages9
JournalJournal of the European Ceramic Society
Volume36
Issue number15
DOIs
Publication statusPublished - 1 Nov 2016

Keywords

  • Absorption properties
  • Dielectric properties
  • Electrical conductivity
  • Fillers
  • Nanostructure
  • Polymer derived ceramic (PDC)

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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