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Journal of Materials Science

, Volume 30, Issue 21, pp 5371–5380 | Cite as

Synthesis of silicon oxynitride from a polymeric precursor

Part IV Pyrolysis of the copolymers
  • GA -ER Yu
  • Mohan Edirisinghe
  • D. Finch
  • B. Ralph
  • J. Parrick
Papers

Abstract

In this final part of our investigation, the copolymers prepared (reported in Part III) have been pyrolysed to yield silicon oxynitride. Thermogravimetric studies performed on several copolymers in nitrogen, ammonia/nitrogen mixtures, air and oxygen are discussed in the present paper. One copolymer was used for further investigation and its pyrolysis conditions (variation of pyrolysis atmosphere according to temperature) were optimized to produce the maximum yield of white amorphous residue which was crystallized by heating to 1600°C to produce silicon oxynitride powder. The powder particles were equiaxed in shape and in the size range 50–150 nm but in agglomerates of size 0.3–0.1 μm. Crystallization at higher temperatures resulted in a mixture of a silicon nitride-silicon oxynitride.

Keywords

Oxygen Nitrogen Polymer Silicon Atmosphere 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • GA -ER Yu
    • 1
    • 2
  • Mohan Edirisinghe
    • 2
  • D. Finch
    • 2
  • B. Ralph
    • 2
  • J. Parrick
    • 1
  1. 1.Department of ChemistryBrunel UniversityUxbridgeUK
  2. 2.Department of Materials TechnologyBrunel UniversityUxbridgeUK

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