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Type Sharma, S. P.; Fonash, S. J.; Schrenk, G. L.
  Publication The electron transfer process in field ionisation Volume Journal Article
Pages 1970
  Abstract Surface Science  
  Corporate Author Surf. Sci.  
Publisher 23  
Editor
  Summary Language Series Editor field ionisation theory and processes; Field Ionization; APFIM-shortbib-SS23  
Abbreviated Series Title
  Series Issue ISSN  
Medium
  Expedition Notes  
Call Number  
Contribution Id  
Serial URL (down) ISBN  
no 6275
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Son, U. T.; Hren, J. J. Measurement of atomic order with the FIM Journal Article 1970 Surface Science Surf. Sci. 23 alloys - short and long range order; Field Ion Microscopy; APFIM-shortbib-SS23 no 6281
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Goodman, S. R.; Brenner, S. S.; Low, J. R. An FIM-atom probe study of the precipitation of copper from iron-1 4 at pct copper I Field-ion microscopy Journal Article 1973 Metallurgical Transactions 4 10 2363-2369 metallurgical applications; Atom Probe Field Ion Microscopy no 6592
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Goodman, S. R.; Brenner, S. S.; Low, J. R. An FIM-atom probe study of the precipitation of copper from iron-1 4 at pct copper II Atom probe analyses Journal Article 1973 Metallurgical Transactions 4 10 2371-2378 metallurgical applications; atom probe field ion microscopy no 6593
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Audiffren, M.; Traimond, P.; Bardon, J.; Drechsler, M. Study of two-dimensional aggregates of W by field-ion microscopy (French) Book Chapter 1977 3rd Coll. Intl. Phys. Chim. Surf Solides, Grenoble 401 surface structure; Field Ion Microscopy no 7152
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Current, M. I.; Wei, C. Y.; Seidman, D. N. Direct observation of the primary state of damage of ion-irradiated tungsten: II. Definitions and results Journal Article 1983 Philosophical Magazine A Phil. Mag. A 47 407-434 no 8353
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Cerezo, A.; Abraham, M.; Clifton, P.; Lane, H.; Larson, D. J.; Petford-Long, A. K.; Thuvander, M.; Warren, P. J.; Smith, W., G D Three-dimensional atomic scale analysis of nanostructured materials Journal Article 2001 Micron 32 731-739 Atom probe; Nanostructures; Nanocrystalline material; FINEMET; Multilayers The 3-dimensional atom probe (3DAP) has been used to provide atomic-scale microcharacterisation of a number of nanostructured materials. Grain boundary segregation has been investigated in electrodeposited nanocrystalline nickel and Ni-P. In the nanocrystalline nickel, there was no observable grain boundary segregation in the as-deposited condition. After annealing, carbon and sulphur contamination was found at the boundary of an abnormally-grown grain. In the as-deposited Ni-P alloy, only limited grain boundary segregation of P is seen, but annealing produces significant segregation and the formation of Ni3P precipitates at grain boundaries. The phase chemistry in a melt-spun amorphous Fe-Si-Cu-Nb-B-Al (FINEMET-type) alloy has also been studied, and the hetereogeneous nucleation of Fe-Si nanocrystals at Cu precipitates shown conclusively. It is found that at early stages of crystallisation, there is only limited partitioning of the Si between the nanocrystals and the amorphous matrix. Atom probe studies of thin layered films have historically been limited by specimen preparation problems, but recent advances have now yielded data on metallic multilayer films. This has allowed atomic-scale measurements of interface chemistry in these films for the first time. q 2001 Elsevier Science Ltd. All rights reserved. no 9025
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Ivanisenko, Y.; MacLaren, I.; Sauvage, X.; Valiev, R.Z.; Fecht, H.J. Phase transformations in pearlitic steels induced by severe plastic deformation Journal Article 2006 High Pressure Technology Of Nanomaterials 114 133-144 Behavior; Carbon-Steels; Cementite Dissolution; Decomposition; driven phase transformations; field ion microscopy and 3D atom probe; Fracture; high pressure torsion; high resolution TEM; Iron; Materials Science, Multidisciplinary; nanocrystalline; Nanostructure; pearlitic steels; Physics, Applied; Physics, Condensed Matter; Temperatures The paper presents an overview of a number of unusual phase transformations which take place in pearlitic steels in conditions of the severe deformation, i.e. combination of high pressure and strong shear strain. Strain-induced cementite dissolution is a well-documented phenomenon, which occurs during cold plastic deformation of pearlitic steels. Recently new results which can shed additional light on the mechanisms of this process were obtained thanks to 3DAP and HRTEM investigations of pearlitic steel deformed by high pressure torsion (HPT). It was shown that the process of cementite decomposition starts by carbon depletion from the carbides, which indicates that the deviation of cementite's chemical composition from the stoichiometric is the main reason for thermodynamic destabilisation of cementite during plastic deformation. Important results were obtained regarding the distribution of released carbon atoms in ferrite. It was experimentally confirmed that carbon segregates to the dislocations and grain boundaries of nanocrystalline ferrite. Another unusual phase transformation taking place in nanocrystalline pearlitic steel during room temperature HPT is a stress induced alpha ->gamma transformation, which never occurs during conventional deformation of coarse grained iron and carbon steels. It was concluded that this occurred due to a reverse martensitic transformation. The atomistic mechanism and the thermodynamics of the transformation, as well as issues related to the stability of the reverted austenite will be discussed. 1012-0394 no NU @ karnesky @ 9550 9699
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Grennan-Heaven, N.; Cerezo, A.; Godfrey, T.J.; Smith, G.D.W. Optimisation of a scanning atom probe with improved mass resolution using post deceleration Journal Article 2007 Ultramicroscopy 107 9 705-712 3D atom-probe; time-of-flight mass spectrometry; mass resolution In this paper, we present calculations and experimental results obtained using post deceleration of ions in a scanning atom probe (SAP) geometry to improve the mass resolution. Various electrode geometries, tip to electrode distances in the range 50-170 mu m and three different pulse shapes have been evaluated. Experimental mass resolutions of 750 FWHM and 200 FWTM have been achieved reproducibly for the W-184(3+) peak without the use of a reflectron lens. 3D finite element electrostatics software has been used to simulate the ion trajectories through the instrument and thus to calculate the variations in velocities for the different electrode configurations. The observed trends are found to agree well with experimental results. 0304-3991 ISI:000247770100003 no NU @ m-krug @ 9887
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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
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