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Titolo:
TOPOGRAPHY OF BRITTLE-FRACTURE SURFACES OF TITANIUM ALUMINIDE ALLOY AS REVEALED BY A SCANNING TUNNELING MICROSCOPE
Autore:
WANG Z; BAI C; DAI C; HUANG G; ZHANG P; ZHANG Y; CHU W; QIAO L; WANG Y;
Indirizzi:
INSERM,U314,21 RUE CLEMENT ADER F-51100 REIMS FRANCE ACAD SINICA,INST CHEM BEIJING 100080 PEOPLES R CHINA BEIJING UNIV SCI & TECHNOL,DEPT MAT PHYS BEIJING 100083 PEOPLES R CHINA
Titolo Testata:
Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena
fascicolo: 4, volume: 12, anno: 1994,
pagine: 2456 - 2458
SICI:
1071-1023(1994)12:4<2456:TOBSOT>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRON-MICROSCOPY; DIAMOND FILMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
Z. Wang et al., "TOPOGRAPHY OF BRITTLE-FRACTURE SURFACES OF TITANIUM ALUMINIDE ALLOY AS REVEALED BY A SCANNING TUNNELING MICROSCOPE", Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 12(4), 1994, pp. 2456-2458

Abstract

The brittle fracture surfaces of Ti3Al+Nb and Ti3Al were investigatedwith a scanning tunneling microscope (STM) under ambient conditions using a mechanically cut platinum iridium alloy wire and electrochemically etched tungsten tips. The results show that the fracture surfaces consist of cleavage steps with dimensions of the order of approximately 2 nm for Ti3Al+Nb and approximately 60 nm for Ti3Al, similar to cleavage surfaces observed by scanning electron microscopy. Some cavities between the microcleavage steps on the scale of a few nanometers were observed for Ti3Al+Nb. The reproducibility of the STM images under ambient conditions depends on the applied bias voltage. The quality of the STM images obtained via tungsten tips is better.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:25:34