Identification of unexpected hydrides in Mg-20 wt% Dy alloy by high-brilliance synchrotron radiation
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
Standard
in: Journal of Applied Crystallography, Jahrgang 45, Nr. 1, 02.2012, S. 17-21.
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - Identification of unexpected hydrides in Mg-20 wt% Dy alloy by high-brilliance synchrotron radiation
AU - Gan, Weimin
AU - Huang, Yuanding
AU - Yang, Lei
AU - Kainer, Karl Ulrich
AU - Jiang, Miao
AU - Brokmeier, Heinz Günter
AU - Hort, Norbert
PY - 2012/2
Y1 - 2012/2
N2 - An unexpected precipitate phase was observed in Mg-20 wt% Dy alloy, with a cuboid morphology not compatible with any shown in the Mg-Dy binary phase diagram. As observed by scanning electron microscopy and energy-dispersive X-ray analysis, the ratio of atomic percent of Dy to Mg is very high in these particles, probably largely because of the poor spatial resolution of that technique but already showing the mismatch with any previously characterized Mg-Dy compound. High-brilliance synchrotron diffraction and transmission electron microscopy experiments confirmed that these particles are composed of DyH2. They are formed during sample preparation at room temperature when hydrogen-containing sources such as water are used.
AB - An unexpected precipitate phase was observed in Mg-20 wt% Dy alloy, with a cuboid morphology not compatible with any shown in the Mg-Dy binary phase diagram. As observed by scanning electron microscopy and energy-dispersive X-ray analysis, the ratio of atomic percent of Dy to Mg is very high in these particles, probably largely because of the poor spatial resolution of that technique but already showing the mismatch with any previously characterized Mg-Dy compound. High-brilliance synchrotron diffraction and transmission electron microscopy experiments confirmed that these particles are composed of DyH2. They are formed during sample preparation at room temperature when hydrogen-containing sources such as water are used.
KW - hydrogen
KW - intermetallic compounds
KW - magnesium alloys
KW - synchrotron diffraction
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84862937458&partnerID=8YFLogxK
U2 - 10.1107/S0021889811053088
DO - 10.1107/S0021889811053088
M3 - Journal articles
AN - SCOPUS:84862937458
VL - 45
SP - 17
EP - 21
JO - Journal of Applied Crystallography
JF - Journal of Applied Crystallography
SN - 0021-8898
IS - 1
ER -