| |
Records |
Links  |
|
Type |
Blavette, D.; Soisson, F.; Martin, G.; Pareige, C. |
| |
Publication |
Ordering and Phase Separation in Model Superalloys: 3D Atom Probe versus Monte Carlo simulation |
Volume |
Book Chapter |
Pages |
1999 |
| |
Abstract |
Proceedings of the International Conference on Solid-Solid Phase Transformations |
|
| |
Corporate Author |
|
|
Publisher |
|
|
Editor |
|
| |
Summary Language |
65-72 |
Series Editor |
ordering, phase separation, Ni-Al-Cr, 3D atom-probe, monte carlo simulation; 3D Atom Probe, Superalloys |
|
Abbreviated Series Title |
The kinetics of ordering and unmixing in model superalloys (NiCrAl) at 600C were
effects in the ' investigated at the atomic scale using 3D atom probe and by transmission electron
it ion here that microscopy. Very fine precipitates (lnm) with a well ordered structure (Ni3 Al) were
observed in the early stages of growth At this stage, their composition was found very close
to the equilibrium composition of the y' phase. Coarsening of y' precipitates was observed in
the early stages, for particle radius under 2 nm Monte Carlo simulations of kinetics based on
a atom-vacancy exchanges mechanism and using a residence time algorithm were also
conducted. Experiments and simulations have shown a good agreement. Monte carlo
simulations indicate that short range ordering of both Al and Cr precedes the nucleation and
Ni3AI ordered phase. The Cr content in nuclei was foun: to be close to that of
solution in the very early stages of phase separation |
| |
Series Issue |
|
ISSN |
|
|
Medium |
|
| |
Expedition |
|
Notes |
|
|
Call Number |
|
|
Contribution Id |
|
|
Serial |
|
URL |
|
ISBN |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
NU @ karnesky @ |
|
275 |
| Permanent link to this record |
| |
|
| |
|
Georges Martin |
|
Resumee Georges Martin |
|
Miscellaneous |
|
2019 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Georges Martin |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CV Georges Martin |
|
no |
|
NU @ z-mao2 @ |
|
11558 |
| Permanent link to this record |
| |
|
| |
|
Heck, P. R.; Pellin, M. J.; Davis, A. M.; Martin, I.; Renaud, I.; Benbalagh, R.; Isheim, D.; Seidman, D. N.; Hiller, J.; Stephan, T.; Lewis, R. S.; Savina, M. R.; Maine, A.; Elam, J.; Staermann, F. J.; Zhao, X.; Daulton, T. L.; Amari, S. |
|
Atom-Probe Tomographic Analyses of Presolar Silicon Carbide Grains and Meteoric Nanodiamonds – First Results on Silicon Carbide |
|
Abstract |
|
2010 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
40th Lunar and Planetary Science Conference |
|
|
|
no |
|
NU @ karnesky @ |
|
10734 |
| Permanent link to this record |
| |
|
| |
|
Ladwig, Peter F.; Olson, Jesse D.; Bunton, Joseph H.; Larson, David J.; Ulfig, Robert M.; Martens, Richard L.; Gribb, Tye T.; Kelly, Thomas F.; Bonsager, Martin C.; Schultz, Allan E.; Pant, Bharat B.; Chang, Y. Austin |
|
Intermixing and phase separation at the atomic scale in Co-rich (Co,Fe) and Cu multilayered nanostructures |
|
Journal Article |
|
2005 |
|
Applied Physics Letters |
|
Appl. Phys. Lett. |
|
87 |
|
|
|
121912:1-3 |
|
LEAP |
|
Despite the fact that Co-rich (Co,Fe) alloys and Cu are immiscible materials in bulk form, evidence of thermally induced mixing at the atomic scale has been observed in thin-film multilayers of (Co,Fe) and Cu. However, long term anneals at lower temperatures produced a breakup of the multilayers into a two-phase mixture of (Co,Fe) and Cu particles. The observations were made with the use of the three-dimensional atom probe technique, with supporting evidence from differential scanning calorimetry and x-ray diffraction. Besides their scientific importance, these results are of interest where these (Co,Fe) and Cu thin films are used to produce the giant magnetoresistive effect. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
NU @ karnesky @ |
|
420 |
| Permanent link to this record |
| |
|
| |
|
Antepara, I.; Villarreal, I.; Rodriguez-Martinez, L.M.; Lecanda, N.; Castro, U.; Laresgoiti, A |
|
Evaluation of ferritic steels for use as interconnects and porous metal supports in IT-SOFCs |
|
Journal Article |
|
2005 |
|
Journal of Power Sources |
|
|
|
151 |
|
|
|
103-107 |
|
SOFC; ferritic stainless steel; oxidation; ASR |
|
As a way of reducing the production costs of stacks by replacing ceramic components with metal components with a similar thermal expansion coefficient (TEC), today, much of the research work has focused on SOFCs operating at temperatures of under 800 degrees C. Some semi-commercial ferritic stainless steels (FSS) satisfy this TEC. Ikerlan has evaluated samples of two of these. Also, AMETEK stainless steel powders were tested in sintered disks until they were completely densified in order to compare results from dense and porous materials. The first tests performed by Ikerlan were conducted with dense samples and included the oxidation test in air at 800 degrees C and measurements of contact surface electrical resistance (area specific resistance, ASR), to compare electrochemical techniques (electrochemical impedance spectroscopy, EIS) with the traditional four-wire method and indirect measuring of the resistance through current and voltage measurements. An alloy from the last melt manufactured by the company ThyssenKrupp VDM GmbH performed best. These results did not differ greatly from the previous laboratory results attained during alloy development. Only AMETEK powder metallurgy materials were tested as porous bodies, to compare these with these dense materials. and were found to provide much higher oxidation levels, as might be expected. While dense materials can operate under the working conditions of the SOFC, porous materials still need new alloys. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
NU @ karnesky @ |
|
497 |
| Permanent link to this record |
| |
|
| |
|
Martin, A.; Block, J. |
|
A field ion source with electrical mass filter |
|
Journal Article |
|
1973 |
|
Messtechnik |
|
|
|
81 |
|
|
|
|
|
field desorption; Field Evaporation |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
|
|
6619 |
| Permanent link to this record |
| |
|
| |
|
Cetronio, A.; Jones, J. P.; Martin, A. D. |
|
Computer simulation of ion images as an aid to indexing small crystallites |
|
Journal Article |
|
1974 |
|
Surface Science |
|
Surf. Sci. |
|
44 |
|
|
|
|
|
computer simulation; Field Ion Microscopy |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
|
|
6715 |
| Permanent link to this record |
| |
|
| |
|
Jones, J. P.; Martin, A. D. |
|
High field microscopy of nickel on tungsten |
|
Journal Article |
|
1974 |
|
Surface Science |
|
Surf. Sci. |
|
41 |
|
|
|
|
|
thin film nucleation; Field Ion Microscopy |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
|
|
6758 |
| Permanent link to this record |
| |
|
| |
|
Sarrau, J. M.; Martin, C.; Gallot, J. |
|
An atom probe field ion microscope calibrated using tantalum a single isotope metal (French) |
|
Journal Article |
|
1975 |
|
C. R. Hebd. Seances Acad. Sci. B |
|
|
|
281 |
|
|
|
|
|
calibration and charge state studies; atom probe field ion microscopy |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
|
|
6959 |
| Permanent link to this record |
| |
|
| |
|
Walls, J. M.; Martin, A. D.; Southworth, H. N. |
|
Combined FIM AES and LEED study of the structure and composition of ion- bombarded W surfaces |
|
Journal Article |
|
1975 |
|
Surface Science |
|
Surf. Sci. |
|
50 |
|
|
|
|
|
low energy ion bombardment; Field Ion Microscopy |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
no |
|
|
|
6984 |
| Permanent link to this record |
