Magnetic states of MgCo2 and CaCo2 with the cubic and hexagonal Laves phase structures

2005 ◽  
Vol 388 (1) ◽  
pp. 15-18 ◽  
Author(s):  
H. Yamada ◽  
H. Shimizu
Keyword(s):  
Laves Phase ◽  
Phase Structures ◽  
Magnetic States

Hydriding properties of ordered-/disordered-Mg-based ternary Laves phase structures

2003 ◽  
Vol 356-357 ◽  
pp. 429-432 ◽  
Author(s):  
Nobuko Hanada ◽  
Shin-ichi Orimo ◽  
Hironobu Fujii
Keyword(s):  
Laves Phase ◽  
Phase Structures

Magnetic moment at highly frustrated sites of antiferromagnetic Laves phase structures

2005 ◽  
Vol 71 (10) ◽  
Author(s):  
H. R. Rechenberg ◽  
L. Morellon ◽  
P. A. Algarabel ◽  
M. R. Ibarra
Keyword(s):  
Magnetic Moment ◽  
Laves Phase ◽  
Phase Structures

Erratum to ‘Hydriding properties of ordered-/disordered-Mg-based ternary Laves phase structures’

2003 ◽  
Vol 361 (1-2) ◽  
pp. 322 ◽  
Author(s):  
Nobuko Hanada ◽  
Shin-ichi Orimo ◽  
Hironobu Fujii
Keyword(s):  
Laves Phase ◽  
Phase Structures

Hydrogen sorption and electrochemical properties of alloys: Systems Zr-Ti-Ni-V-Mn with laves phase structures

2007 ◽  
Vol 43 (3) ◽  
pp. 355-363 ◽  
Author(s):  
T. A. Zotov ◽  
V. N. Verbetskii ◽  
T. Ya. Safonova ◽  
A. V. Garshev ◽  
O. A. Petrii
Keyword(s):  
Electrochemical Properties ◽  
Laves Phase ◽  
Hydrogen Sorption ◽  
Phase Structures

Some Applications of the U. S. Steel MVEM

1973 ◽  
Vol 31 ◽  
pp. 4-5
Author(s):  
J. S. Lally ◽  
L. E. Thomas ◽  
R. M. Fisher
Keyword(s):  
Electron Diffraction ◽  
Debye Temperature ◽  
Metals And Alloys ◽  
Critical Voltage ◽  
Dynamical Diffraction ◽  
Phase Structures ◽  
Structure Factors ◽  
Local Bonding ◽  
Diffraction Phenomenon ◽  
Multi Phase

A variety of materials containing many different microstructures have been examined with the USS MVEM. Three topics have been selected to illustrate some of the more recent studies of diffraction phenomena and defect, grain and multi-phase structures of metals and minerals.(1) Critical Voltage Effects in Metals and Alloys - This many-beam dynamical diffraction phenomenon, in which some Bragg resonances vanish at certain accelerating voltages, Vc, depends sensitively on the spacing of diffracting planes, Debye temperature θD and structure factors. Vc values can be measured to ± 0.5% in the HVEM ana used to obtain improved extinction distances and θD values appropriate to electron diffraction, as well as to probe local bonding effects and composition variations in alloys.

Morphology of Σ3{/70.53°} grain boundaries in a C15 intermetallic compound

1994 ◽  
Vol 52 ◽  
pp. 684-685
Author(s):  
Fuming Chu ◽  
D. P. Pope ◽  
D. S. Zhou ◽  
T. E. Mitchell
Keyword(s):  
Grain Boundary ◽  
Grain Boundaries ◽  
Crystallographic Analysis ◽  
Laves Phase ◽  
Second Phase ◽  
Bright Field Image ◽  
Boundary Edge ◽  
Arc Melting ◽  
Fcc Lattice ◽  
Diffraction Patterns

A C15 Laves phase, HfV2+Nb, shows promising mechanical properties and here we describe the structure of its grain boundaries. The C15 Laves phase has a fcc lattice with a=7.4Å. An alloy of composition Hf14V64Nb22 (including a C15 matrix and a second phase of V-rich bcc solution) was made by arc-melting. The alloy was homogenized at 1200°C for 120h. Preliminary study concentrated on Σ3{<110>/70.53°} grain boundaries in the C15 phase using Philips 400T and CM 30 microscopes.The most-commonly observed morphology of Σ3{<110>/70.53°} grain boundaries in the C15 phase is a faceted boundary. A bright field image (BFI) of the faceted boundary and the corresponding diffraction patterns with the grain boundary edge-on are shown in Fig. 1(a). From the diffraction patterns using a <110> zone axis for both grains, it is obvious that this is a Σ3{<110>/70.53°} grain boundary. Crystallographic analysis shows that the Σ3{<110>/70.53°} grain boundaries selectively facet with the following relationships between the two grains: {111}1//{111}2, {112}1//{112}2, {111}1//{115}2, and {001}1//{221}2.

ELECTRONIC AND MAGNETIC STATES OF ULTRA-THIN Fe FILMS

1984 ◽  
Vol 45 (C5) ◽  
pp. C5-371-C5-371 ◽  
Author(s):  
A. Amiri-Hezaveh ◽  
G. Jennings ◽  
D. J. Joyner ◽  
R. F. Willis
Keyword(s):  
Magnetic States
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