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Titolo:
X-ray photoelectron spectroscopy study of the metal/cermet interface
Autore:
Lu, H; Shen, DH; Xue, QK; Polak, M; Froumin, N;
Indirizzi:
Chinese Acad Sci, Inst Phys, State Key Lab Surface Phys, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel Ben Gurion Univ Negev Beer Sheva Israel IL-84105 4105 Beer Sheva, Israel
Titolo Testata:
CHINESE PHYSICS LETTERS
fascicolo: 1, volume: 18, anno: 2001,
pagine: 94 - 96
SICI:
0256-307X(2001)18:1<94:XPSSOT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Lu, H Chinese Acad Sci, Inst Phys, State Key Lab Surface Phys, POB 603, Beijing 100080, Peoples R China Chinese Acad Sci POB 603 Beijing Peoples R China 100080 les R China
Citazione:
H. Lu et al., "X-ray photoelectron spectroscopy study of the metal/cermet interface", CHIN PHYS L, 18(1), 2001, pp. 94-96

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 + 4TiC(0.75))When Al is deposited in vacuum on the Ti-oxycarbide surface, the active Alatoms 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 Al-3 Ti. Annealing the Al/TiC0.6 interface at 750 degrees C, Al reacts also with TiC0.75 to form a brittle Al4C3 phase.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 23:30:44