Title
Surface Chemistry Of Nextel-720, Alumina And Nextel-720/Alumina Ceramic Matrix Composite (Cmc) Using Xps-A Tool For Nano-Spectroscopy
Keywords
Aluminosilicate; Ceramic matrix composites; Gas turbines; Nextel-720 fiber; TEM; XPS or ESCA
Abstract
Oxide-based ceramic matrix composites (CMCs) are prime candidates for high temperature turbine applications. Increasing demand of CMCs necessitates the development of quality monitoring procedures. Sol-gel derived Nextel-720 fiber/alumina matrix CMC is one of the potential candidate material for land-based gas turbine applications. X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) were utilized to investigate any surface/interface chemical alteration of the Nextel-720 fiber reinforcement and the alumina matrix during fabrication. The calculated XPS spectra of the composite were obtained by simply adding the spectra of the as-received Nextel-720 fiber and the alumina matrix. The calculated XPS spectra and the acquired XPS Al(2p), Si(2p 3 ), and O(1s) spectra from the as-received materials were compared using a superimposition method to investigate any chemical alteration during composite fabrication for quality control measures. This paper is aimed to serve as a reference for future XPS studies of CMCs exposed to aggressive turbine environments. © 2002 Elsevier Science B.V. All rights reserved.
Publication Date
1-15-2002
Publication Title
Applied Surface Science
Volume
185
Issue
3-4
Number of Pages
183-196
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1016/S0169-4332(01)00594-3
Copyright Status
Unknown
Socpus ID
0037080443 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/0037080443
STARS Citation
Wannaparhun, S.; Seal, S.; and Desai, V., "Surface Chemistry Of Nextel-720, Alumina And Nextel-720/Alumina Ceramic Matrix Composite (Cmc) Using Xps-A Tool For Nano-Spectroscopy" (2002). Scopus Export 2000s. 2649.
https://stars.library.ucf.edu/scopus2000/2649