Characterization of interfaces in ceramic composites by SIMS, AES and EPMA

✍ Scribed by S. Mischler; H. E. Bishop; J. J. R. Davies

• Book ID: 104592840
• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 965 KB
• Volume: 18
• Category: Article
• ISSN: 0142-2421
• DOI: 10.1002/sia.740180105

✦ Synopsis

Abstract

Fracture surfaces and polished cross‐sections of aligned SiC fibre–cordierite matrix composites have been studies using SIMS, AES and electron probe x‐ray microanalysis (EPMA). It has been shown that, during fabrication, interface reactions resulting in penetration of the fibres by matrix cations take place. Titanium diffusion out from the fibres together with segregation of matrix elements to the interface is also observed. A correlation is found between interface composition and mechanical properties of the composites. The relative merits of SIMS, AES and EPMA in the determination of the nature of the fibre‐matrix interface are discussed. SIMS using a microfocused Ga ion beam is shown to be a powerful new tool in the investigation of interfaces.