Published February 28, 2005 | Version v1
Journal article Metadata-only

Reduction mechanism of surface oxide films and characterization of formations on pulse electric-current sintered Al-Mg alloy powders

Creators

  • 1. Nanomaterials Laboratory, National Institute for Materials Science, 3-13 Sakura, Tsukuba 305-0003 (Japan)
  • 2. Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan)

Description

The microstructure of interfaces between powder particles in Al-Mg alloy specimens sintered by pulse electric-current sintering (PECS) process was characterized using high resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS). The crystalline precipitates with nano-size in the interface were observed in all of Al-Mg alloy specimens. The composition was determined to be MgAl2O4 or MgO, or both of them, which depended on Mg content in alloy powder and sintering temperature. The precipitates were suggested to contribute to reduction reaction of Mg with oxide films originally covered at powder particles surface

Additional details

Identifiers

DOI
10.1016/j.apsusc.2004.09.025;
PII
S0169-4332(04)01374-1;

Publishing Information

Journal Title
Applied Surface Science
Journal Volume
241
Journal Issue
1-2
Journal Page Range
p. 102-106
ISSN
0169-4332
CODEN
ASUSEE

Conference

Title
9. international symposium on advanced physical fields
Acronym
APF-9
Dates
1-4 Mar 2004
Place
Tsukuba (Japan)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38060528
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM ALLOYS; ELECTRIC CURRENTS; FILMS; INTERFACES; MAGNESIUM ALLOYS; MAGNESIUM OXIDES; MICROSTRUCTURE; PARTICLES; POWDERS; PRECIPITATION; REDUCTION; SINTERING; SURFACES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY SPECTROSCOPY
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; CHALCOGENIDES; CHEMICAL REACTIONS; CURRENTS; ELECTRON MICROSCOPY; FABRICATION; MAGNESIUM COMPOUNDS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SPECTROSCOPY

Optional Information

Copyright
Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.