Oxidation and reduction of TiC/Co in O2 and H2

Shao, Y.; Paul, Jan; Lindström, J.

doi:10.1016/0040-6090(94)90639-4

Cited by 3 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Multipack's peak identification database, 12 the Auger peaks in the spectra correspond to the electronic transitions of carbon, titanium, and oxygen. By comparing spectrum 4(c) with spectrum 4(d) and the literature data, 13,14 the C and Ti AES features of spectrum 4(c) can be attributed to TiC, though the O peak is also present. Except for the presence of the C peak, the zone a can be identified as TiO 2 .…”

Section: Resultsmentioning

confidence: 91%

Auger Electron Spectroscopy Analysis of Cross‐Section Surface of Oxidized Titanium Carbide Single Crystal

Bellucci

Gozzi

Kimura

et al. 2003

Journal of the American Ceramic Society

View full text Add to dashboard Cite

A TiC monocrystal was heated by three thermal cycles with isotherm at 1108 K while exposed to Ar/O2 mixtures respectively with O2 contents of 239, 1.0, and 324 ppm. The reactivity was detected with a homemade device based on two identical solid electrolyte oxygen sensors connected to a quadrupole mass spectrometer (QMS). The oxidized sample was cleaved by impact bending under high vacuum and the cross section investigated by Auger electron spectroscopy (AES) and scanning electron microscopy (SEM) techniques. Both area and profile AES spectra were acquired by using a 70 nm diameter beam. Spectral changes have been analyzed to identify chemical species present at the TiC/TiO2 interface. A model for high‐temperature oxidation of TiC has been proposed. It implies oxygen diffusion through a protective TiO2 layer and the existence of two inner interfaces: TiC/TiC1−xOx and TiC1−xOx/TiO2.

show abstract

Section: Resultsmentioning

confidence: 91%