Synthesis of cross-linked polymer microspheres and pyrolysis conversion to polymer-derived ceramics

Dandan Sun, Feng Chen, Yan Gao*, Yiguang Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The cross-linked polysilazane spherical particles were synthesized via a solvothermal process from a liquid polysilazane precursor. We found that the average size of obtained cross-linked polymer spheres is in the range of hundreds nanometer to about 10 μm by adjusting the amount of divinylbenzene cross-linker. Spherical ceramic particles were synthesized via the polymer-derived ceramics (PDCs) route. The XRD and SEM analysis on ceramic particles pyrolyzed below 1400°C showed that they were amorphous and maintained a smooth spherical morphology. When the polymer spherical particles were pyrolyzed at 1500°C, SiC/Si3N4 ceramics spheres were fabricated.

Original languageEnglish
Pages (from-to)992-998
Number of pages7
JournalInternational Journal of Applied Ceramic Technology
Volume14
Issue number5
DOIs
Publication statusPublished - 1 Sept 2017
Externally publishedYes

Keywords

  • particle size adjustment
  • polymer microspheres
  • polymer-derived ceramic

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