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Journal of Materials Science

, Volume 33, Issue 13, pp 3229–3232 | Cite as

Blow spun strontium zirconate fibres produced from a sol-gel precursor

  • R. C. Pullar
  • M. D. Taylor
  • A. K. Bhattacharya
Article

Abstract

A zirconium sol was produced from the hydrolysis and immediate peptization of a zirconium alkoxide, which was found to be stable with the addition of a large proportion of a strontium salt, even up to equimolar amounts. Get fibres were successfully blow spun from this doped sol, which on subsequent heating produced ceramic fibres of orthorhombic strontium zirconate. The fibres were characterized by various techniques. The fibres were found to begin forming SrZrO3 at 400°C and were present as single phase orthorhombic strontium zirconate at 800°C and above. The ceramic fibres had no discernible grain structure and the average crystallite size was calculated to be only 20 nm at this temperature, but the fibres contained small surface pores (< 0.2 μm) which continued to increase in size on subsequent heating, resulting in a weak and brittle fibre. Therefore, more investigation is required into sintering and the development of high temperature properties.

Keywords

Zirconate Brittle Crystallite Size Strontium Alkoxide 
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

© Kluwer Academic Publishers 1998

Authors and Affiliations

  • R. C. Pullar
    • 1
  • M. D. Taylor
    • 1
  • A. K. Bhattacharya
    • 1
  1. 1.Centre for Catalytic Systems and Materials Engineering, Department of EngineeringUniversity of WarwickCoventryUK

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