Unidirectional all-oxide mini-composites with crack-deflecting NdPO4 interface


KAYA C. , Butler E. G.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol.29, no.3, pp.363-367, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 3
  • Publication Date: 2009
  • Doi Number: 10.1016/j.jeurceramsoc.2008.06.009
  • Journal Name: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.363-367

Abstract

Unidirectional Nextel 720 (TM) fibers were coated with crack-deflecting NdPO4 interface using dip coating and infiltrated with silica-free alumina matrix using electrophoretic deposition followed by drying and pressureless sintering at 1200 degrees C in an attempt to manufacture oxide-based model 'mini-composites' which are less complex to produce in a short time and which therefore allow rapid results for mechanical and microstructural characterisation. This material is targeted for use at 1200 degrees C in an oxidising atmosphere and has shown an excellent tensile strength value of 1.2 GPa and flexural strengths of 894 MPa at room temperature and 761 MPa at 1300 degrees C in unidirectional form. (c) 2008 Elsevier Ltd. All rights reserved.