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Miller, M. K.; Brenner, S. S.; Burke, M. G.; Soffa, W. A. |
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Atom probe field-ion microscopy studies of triaxially modulated microstructures in iron-beryllium alloys |
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1984 |
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Scr. Metall. |
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18, |
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FeBe modulations APFIM spinodal decomposition; atom probe field ion microscopy |
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8620 |
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Murakami, H.; Warren, P. J.; Harada, H. |
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Atom probe microanalyses of some Ni-base single crystal superalloys |
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Journal Article |
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1995 |
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Proc. 3rd Intl. Charles Parsons Turbine Conf., April 25-27, 1995, Newcastle-upon-Tyne,UK, R. D. Conroy, M. J. Goulette and A. Strang, eds., Institute of Materials, London, UK, |
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1 |
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343 |
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3D Atom Probe, Superalloys |
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2359 |
| Permanent link to this record |
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Brenner, S. S.; Kellogg, G. L. |
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Atom probe microanalysis of superconducting YBa[sub:2]Cu[sub:3]O[sub:7-x] |
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Journal Article |
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1988 |
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Materials Research Society Symposium Proceedings |
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Mater. Res. Soc. Symp. Proc. |
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99 |
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947-950 |
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123 high Tc superconductor APFIM; atom probe field ion microscopy |
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Superconducting YBa2Cu3O7Tx needles prepared from hot-pressed discs of oxide
powders were analyzed in a long drift-tube type atom probe. An analyses was made
from a randomly located area about 2 nm in diameter. Most of the oxygen field-
evaporated as 02+ ions. The measured composition agreed well with that of
YBa 2 Cu 3 O6 .5 except for yttrium which was found to be too high. The oxygen
concentration profile showed fluctuations about 2.5 nm apart which must still be
clarified. |
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4029 |
| Permanent link to this record |
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Soffa, W. A.; Brenner, S. S.; Miller, M. K. |
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Atom probe studies of the decomposition spectrum in alloys |
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Book Chapter |
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1984 |
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Decomposition of Alloys: The Early Stages |
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227-232 |
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FeCr spinodal decomposition APFIM; atom probe field ion microscopy |
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Pergamon |
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Oxford |
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Haasen, P.; Gerold, V.; Wagner, R.; Ashby, M. F. |
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Acta-Scripta Metallurgica Proceedings |
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2 |
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0080316514 |
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8662 |
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Seol, J.; Lim, N.; Lee, B.; Renaud, L.; Park, C. |
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Atom probe tomography and nano secondary ion mass spectroscopy investigation of the segregation of boron at austenite grain boundaries in 0.5 wt.% carbon steels |
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Journal Article |
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2011 |
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Metals and Materials International |
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3 |
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413-416 |
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Metallic Materials |
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The grain boundary segregation of boron atoms in high strength low alloy steels containing 50 ppm boron was accomplished using atom probe tomography (APT) and nano-beam secondary ion mass spectroscopy (SIMS). The formation of boro-carbides under an excessive addition of boron to the steels was identified through the SIMS and TEM. The APT was performed in order to evaluate the composition of the alloying elements, such as, boron and carbon, segregated at prior austenite grain boundaries. The boron contents at the prior austenite grain boundaries were approximately 1.7 ± 0.2 at.%, which was approximately 70 times more than the amount of boron added to the steels. |
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The Korean Institute of Metals and Materials, co-published with Springer Netherlands |
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1598-9623 |
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NU @ karnesky @ |
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11171 |
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Larson, David J.;Prosa, Ty J.; Lawrence, Dan;Geiser, Brian P.; Jones, Clive M.; Kelly, Thomas F. |
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Atom Probe Tomography for Microelectronics |
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Book Chapter |
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2012 |
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Chapter 10 in: Handbook of Instrumentation and Techniques for Semiconductor Nanostructure Characterization |
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1 |
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407-477 |
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Mircoelectronics; Semiconductors; Handbook |
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World Scientific Publishing |
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Singapore |
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R. Haight, F. Ross, J. Hannon |
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NU @ pbocchin @ |
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11308 |
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Dong, Y.; Etienne, A.; Frolov, A.; Fedotova, S.; Fujii, K.; Fukuya, K.; Hatzoglou, C.; Kuleshova, E.; Lindgren, K.; London, A.; Lopez, A.; Lozano-Perez, S.; Miyahara, Y.; Nagai, Y.; Nishida, K.; Radiguet, B.; Schreiber, D.K.; Soneda, N.; Thuvander, M.; Toyama, T.; Wang, J.; Sefta, F.; Chou, P.; Marquis, E.A. |
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Atom Probe Tomography Interlaboratory Study on Clustering Analysis in Experimental Data Using the Maximum Separation Distance Approach |
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Journal Article |
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2019 |
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Microscopy and Microanalysis |
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25 |
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2 |
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356-366 |
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atom probe tomography; cluster analysis; maximum separation |
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We summarize the findings from an interlaboratory study conducted between ten international research groups and investigate the use of the commonly used maximum separation distance and local concentration thresholding methods for solute clustering quantification. The study objectives are: to bring clarity to the range of applicability of the methods; identify existing and/or needed modifications; and interpretation of past published data. Participants collected experimental data from a proton-irradiated 304 stainless steel and analyzed Cu-rich and Ni-Si rich clusters. The datasets were also analyzed by one researcher to clarify variability originating from different operators. The Cu distribution fulfills the ideal requirements of the maximum separation method (MSM), namely a dilute matrix Cu concentration and concentrated Cu clusters. This enabled a relatively tight distribution of the cluster number density among the participants. By contrast, the group analysis of the Ni-Si rich clusters by the MSM was complicated by a high Ni matrix concentration and by the presence of Si-decorated dislocations, leading to larger variability among researchers. While local concentration filtering could, in principle, tighten the results, the cluster identification step inevitably maintained a high scatter. Recommendations regarding reporting, selection of analysis method, and expected variability when interpreting published data are discussed. |
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Cambridge University Press |
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2019/02/04 |
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1431-9276 |
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NU @ karnesky @ |
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11537 |
| Permanent link to this record |
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Gordon, Lyle Matthew; Tran, Lawrence; Joester, Derk |
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Atom Probe Tomography of Apatites and Bone-Type Mineralized Tissues |
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Journal Article |
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2012 |
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ACS Nano |
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ACS Nano |
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Nanocrystalline biological apatites constitute the mineral phase of vertebrate bone and teeth. Beyond their central importance to the mechanical function of our skeleton, their extraordinarily large surface acts as the most important ion exchanger for essential and toxic ions in our body. However, the nanoscale structural and chemical complexity of apatite-based mineralized tissues is a formidable challenge to quantitative imaging. For example, even energy-filtered electron microscopy is not suitable for detection of small quantities of low atomic number elements typical for biological materials. Herein we show that laser-pulsed atom probe tomography, a technique that combines sub-nanometer spatial resolution with unbiased chemical sensitivity, is uniquely suited to the task. Common apatite end members share a number of features, but can clearly be distinguished by their spectrometric fingerprint. This fingerprint and the formation of molecular ions during field evaporation can be explained based on the chemistry of the apatite channel ion. Using end members for reference, we are able to interpret the spectra of bone and dentin samples, and generate the first three-dimensional reconstruction of 1.2·107 atoms in a dentin sample. The fibrous nature of the collagenous organic matrix in dentin is clearly recognizable in the reconstruction. Surprisingly, some fibers show selectivity in binding for sodium ions over magnesium ions, implying that an additional, chemical level of hierarchy is necessary to describe dentin structure. Furthermore, segregation of inorganic ions or small organic molecules to homophase interfaces (grain boundaries) is not apparent. This has implications for the platelet model for apatite biominerals. |
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American Chemical Society |
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1936-0851 |
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doi: 10.1021/nn3049957 |
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NU @ karnesky @ |
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11416 |
| Permanent link to this record |
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Juraszek, J.; Grenier, A.; Teillet, J.; Cadel, E.; Tiercelin, N.; Monnet, I.; Toulemonde, M. |
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Atom probe tomography of swift ion irradiated multilayers |
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Journal Article |
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2009 |
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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
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267 |
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912-916 |
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Ion beam mixing; atom probe tomography; multilayers; swift ion irradiation |
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Nanometer scale layered systems are well suited to investigate atomic transport processes induced by high-energy electronic excitations in materials, through the characterization of the interface transformation. In this study, we used the atom probe technique to determine the distribution of the different elements in a (amorphous-Fe2Tb 5 nm/hcp-Co 3 nm)20 multilayer before and after irradiation with Pb ions in the electronic stopping power regime. Atom probe tomography is based on reconstruction of a small volume of a sharp tip evaporated by field effect. It has unique capabilities to characterize internal interfaces and layer chemistry with sub-nanometer scale resolution in three dimensions. Depth composition profiles and 3D element mapping have been determined, evidencing for asymmetric interfaces in the as-deposited sample, and very efficient Fe-Co intermixing after irradiation at the fluence 7×1012 ion cm-2. Estimation of effective atomic diffusion coefficients after irradiation suggests that mixing results from interdiffusion in a molten track across the interface in agreement with the thermal spike model. |
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0168-583x |
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NU @ karnesky @ |
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10581 |
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Rolander, U.; Andren, H. O. |
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Atom-probe analysis applied to TiC-Ni-based cemented carbides |
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Journal Article |
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1989 |
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Proc 12th Intl Plansee Seminar Bildstein H and Ortner H M eds Metallwerk Plansee GmbH Reutee/Tirol Austria |
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Atom Probe Field Ion Microscopy |
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4750 |
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