Thermal and tensile properties of polysialate composites

Joseph Mills-Brown*, Kevin Potter, Steve Foster, Tom Batho

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

6 Citations (Scopus)

Abstract

Polysialate, or geopolymer, composites have gained interest due to their inherent high temperature resistance, low density and ease of manufacturing. These characteristics also suggest that polysialate composites have significant potential as materials in high temperature structures, although little is known about their thermal and mechanical properties. This study aimed to determine relevant thermal and mechanical properties over a representative temperature range. The results show that polysialate composites can exhibit stable thermal properties up to 1000 degrees C. Tensile properties up to 760 degrees C highlight a significant reduction in stiffness, but a retention of strength, at these temperatures. The thermal and mechanical results achieved provide strong evidence that polysialate composites can be suitable for use in high temperature structures, whilst subsequently providing an understanding of their limitations. In addition to this, the values ascertained also provide the data required for the design and modelling of next generation high temperature structures. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)8917-8924
Number of pages8
JournalCeramics International
Volume39
Issue number8
DOIs
Publication statusPublished - Dec 2013

Keywords

  • Thermal properties
  • Mechanical properties
  • Structural applications
  • Thermal applications
  • MECHANICAL-PROPERTIES
  • BEHAVIOR

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