X-ray photoelectron spectroscopy study of the metal/cermet interface

Hua Lu; Dian Hong Shen; Qi Kun Xue; M. Polak; N. Froumin

doi:10.1088/0256-307X/18/1/333

X-ray photoelectron spectroscopy study of the metal/cermet interface

Hua Lu, Dian Hong Shen, Qi Kun Xue, M. Polak, N. Froumin

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Abstract

Interfacial reactions between aluminium and polycrystalline cermet TiC_0.6 were investigated using x-ray photoelectron spectroscopy, Auger electron spectroscopy and x-ray diffraction. It was found that titanium exists in two chemical states. The carbide and oxide of titanium can be detected simultaneously, and the atomic ratio of Ti:C:O is 5:3:2. This suggests that TiC_0.6 is a Ti-oxycarbide or oxygenated TiC composite: Ti₅C₃O₂ (TiO₂+4TiC_0.75). When Al is deposited in vacuum on the Ti-oxycarbide surface, the active Al atoms react chemically only with TiO₂ at room temperature, but not with TiC_0.75 in Ti-oxycarbide. The reaction products are Al₂O₃ and the intermetallic compound Al₃Ti. Annealing the Al/TiC_0.6 interface at 750°C, Al reacts also with TiC_0.75 to form a brittle Al₄C₃ phase.

Original language	English
Pages (from-to)	94-96
Number of pages	3
Journal	Chinese Physics Letters
Volume	18
Issue number	1
DOIs	https://doi.org/10.1088/0256-307X/18/1/333
State	Published - 1 Jan 2001

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General Physics and Astronomy

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title = "X-ray photoelectron spectroscopy study of the metal/cermet interface",

abstract = "Interfacial reactions between aluminium and polycrystalline cermet TiC0.6 were investigated using x-ray photoelectron spectroscopy, Auger electron spectroscopy and x-ray diffraction. It was found that titanium exists in two chemical states. The carbide and oxide of titanium can be detected simultaneously, and the atomic ratio of Ti:C:O is 5:3:2. This suggests that TiC0.6 is a Ti-oxycarbide or oxygenated TiC composite: Ti5C3O2 (TiO2+4TiC0.75). When Al is deposited in vacuum on the Ti-oxycarbide surface, the active Al atoms react chemically only with TiO2 at room temperature, but not with TiC0.75 in Ti-oxycarbide. The reaction products are Al2O3 and the intermetallic compound Al3Ti. Annealing the Al/TiC0.6 interface at 750°C, Al reacts also with TiC0.75 to form a brittle Al4C3 phase.",

author = "Hua Lu and Shen, {Dian Hong} and Xue, {Qi Kun} and M. Polak and N. Froumin",

year = "2001",

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doi = "10.1088/0256-307X/18/1/333",

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T1 - X-ray photoelectron spectroscopy study of the metal/cermet interface

AU - Lu, Hua

AU - Shen, Dian Hong

AU - Xue, Qi Kun

AU - Polak, M.

AU - Froumin, N.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Interfacial reactions between aluminium and polycrystalline cermet TiC0.6 were investigated using x-ray photoelectron spectroscopy, Auger electron spectroscopy and x-ray diffraction. It was found that titanium exists in two chemical states. The carbide and oxide of titanium can be detected simultaneously, and the atomic ratio of Ti:C:O is 5:3:2. This suggests that TiC0.6 is a Ti-oxycarbide or oxygenated TiC composite: Ti5C3O2 (TiO2+4TiC0.75). When Al is deposited in vacuum on the Ti-oxycarbide surface, the active Al atoms react chemically only with TiO2 at room temperature, but not with TiC0.75 in Ti-oxycarbide. The reaction products are Al2O3 and the intermetallic compound Al3Ti. Annealing the Al/TiC0.6 interface at 750°C, Al reacts also with TiC0.75 to form a brittle Al4C3 phase.

AB - Interfacial reactions between aluminium and polycrystalline cermet TiC0.6 were investigated using x-ray photoelectron spectroscopy, Auger electron spectroscopy and x-ray diffraction. It was found that titanium exists in two chemical states. The carbide and oxide of titanium can be detected simultaneously, and the atomic ratio of Ti:C:O is 5:3:2. This suggests that TiC0.6 is a Ti-oxycarbide or oxygenated TiC composite: Ti5C3O2 (TiO2+4TiC0.75). When Al is deposited in vacuum on the Ti-oxycarbide surface, the active Al atoms react chemically only with TiO2 at room temperature, but not with TiC0.75 in Ti-oxycarbide. The reaction products are Al2O3 and the intermetallic compound Al3Ti. Annealing the Al/TiC0.6 interface at 750°C, Al reacts also with TiC0.75 to form a brittle Al4C3 phase.

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JO - Chinese Physics Letters

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X-ray photoelectron spectroscopy study of the metal/cermet interface

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