Academic literature on the topic 'Radiation induced precipitation'

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Journal articles on the topic "Radiation induced precipitation"

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Czekala, Harald, and Clemens Simmer. "On precipitation induced polarization of microwave radiation measured from space." Meteorologische Zeitschrift 11, no. 1 (March 5, 2002): 49–60. http://dx.doi.org/10.1127/0941-2948/2002/0011-0049.

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Woo, O. T., and G. J. C. Carpenter. "Radiation-induced precipitation in Zircaloy-2." Journal of Nuclear Materials 159 (October 1988): 397–404. http://dx.doi.org/10.1016/0022-3115(88)90106-7.

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Ezawa, Tadashi. "Radiation induced precipitation in Al-Zn alloys." Bulletin of the Japan Institute of Metals 28, no. 10 (1989): 794–802. http://dx.doi.org/10.2320/materia1962.28.794.

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Jiao, Z., and G. S. Was. "Novel features of radiation-induced segregation and radiation-induced precipitation in austenitic stainless steels." Acta Materialia 59, no. 3 (February 2011): 1220–38. http://dx.doi.org/10.1016/j.actamat.2010.10.055.

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Lam, N. Q., T. Nguyen, G. K. Leaf, and S. Yip. "Kinetics of radiation-induced precipitation at the alloy surface." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 31, no. 3 (May 1988): 415–24. http://dx.doi.org/10.1016/0168-583x(88)90341-2.

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Ezawa, T., and F. E. Fujita. "Radiation-induced segregation and precipitation in Al-Zn alloys." Journal of Nuclear Materials 169 (December 1989): 131–38. http://dx.doi.org/10.1016/0022-3115(89)90528-x.

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Rodger, C. J., D. Nunn, and M. A. Clilverd. "Investigating radiation belt losses though numerical modelling of precipitating fluxes." Annales Geophysicae 22, no. 10 (November 3, 2004): 3657–67. http://dx.doi.org/10.5194/angeo-22-3657-2004.

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Abstract. It has been suggested that whistler-induced electron precipitation (WEP) may be the most significant inner radiation belt loss process for some electron energy ranges. One area of uncertainty lies in identifying a typical estimate of the precipitating fluxes from the examples given in the literature to date. Here we aim to solve this difficulty through modelling satellite and ground-based observations of onset and decay of the precipitation and its effects in the ionosphere by examining WEP-produced Trimpi perturbations in subionospheric VLF transmissions. In this study we find that typical Trimpi are well described by the effects of WEP spectra derived from the AE-5 inner radiation belt model for typical precipitating energy fluxes. This confirms the validity of the radiation belt lifetimes determined in previous studies using these flux parameters. We find that the large variation in observed Trimpi perturbation size occurring over time scales of minutes to hours is primarily due to differing precipitation flux levels rather than changing WEP spectra. Finally, we show that high-time resolution measurements during the onset of Trimpi perturbations should provide a useful signature for discriminating WEP Trimpi from non-WEP Trimpi, due to the pulsed nature of the WEP arrival.
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Zheng, C., and D. Kaoumi. "Radiation-induced swelling and radiation-induced segregation & precipitation in dual beam irradiated Ferritic/Martensitic HT9 steel." Materials Characterization 134 (December 2017): 152–62. http://dx.doi.org/10.1016/j.matchar.2017.10.019.

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Soisson, Frédéric. "Kinetic Monte Carlo simulations of radiation induced segregation and precipitation." Journal of Nuclear Materials 349, no. 3 (March 2006): 235–50. http://dx.doi.org/10.1016/j.jnucmat.2005.11.003.

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Yacout, A. M., N. Q. Lam, and J. F. Stubbins. "Radiation-induced precipitation at the alloy surface during ion bombardment." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 71, no. 2 (August 1992): 148–54. http://dx.doi.org/10.1016/0168-583x(92)95315-i.

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Dissertations / Theses on the topic "Radiation induced precipitation"

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Xu, Alan. "Atomic scale characterisation of radiation damage and radiation induced precipitation in tungsten-rhenium alloys." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:1ae33661-c81f-4e77-a80c-bc12ed9123d9.

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Tungsten is considered the prime candidate material for plasma facing components within fusion reactors. However, exposure of tungsten to neutron flux brings about transmutation of tungsten into by-products: Re, Os and Ta. Under increasing levels of radiation damage, irradiation induced clustering/precipitation takes place that embrittles and thus reduces lifetime of such tungsten components. This thesis was undertaken to explore this subject on a deeper level. There are three components to this study. The first part considers the effect of Re content on irradiation induced clustering. Lab-made plate W-xRe (x: 2, 5, 10 and 25at.%) alloys were exposed to 1.2, 3.9 and 33dpa, self-ion irradiated at 773K. Analysis of cluster number density and volume fraction found they increase with damage level and bulk Re content. Based on these trends and existing literature data, a hypothesis was proposed suggesting clusters originate from vacancy clusters. Also, at 33dpa, rod shaped clusters form in W-25Re alloys while spherical clusters are present in other alloys. The clusters show close correspondence with irradiation induced precipitates and appear to be precursor phase. In the second part of this thesis, the effect of Os and Ta on cluster formation and alloy mechanical properties is examined. Lab-made plate W-1Re-1Os and W-2Re-1Ta alloys were irradiated at 33dpa at 573 and 773K and compared against control W-2Re alloy. At 33dpa and 573K, the Os and Ta presence suppresses cluster formation. Both ternary alloys contain smaller cluster diameter, composition, number density and volume fraction than the W-2Re alloy. However, at 33dpa and 773K, Os and Ta have opposing effects on cluster behaviour. Os increases the cluster nucleation rate and raises irradiation hardening (compared to W-2Re). Meanwhile, Ta presence decreased cluster number density and reduced the irradiation hardening (compared to W-2Re alloy). As well, Ta showed no evidence of clustering, only Re clusters form in the W-2Re-1Ta alloy. The final aspect of the thesis analyzes the effect of material microstructure and external variables on cluster formation in W-Re alloys. Commercial wire form W-25Re alloy was irradiated at 1.2dpa at 573 and 773K as atom probe needles and bulk sample. The larger free surface on atom probe needle samples appears to act as a sink for self-interstitials and vacancies at both temperatures. The effect of grain size and dislocation density was examined by irradiating commercial W-5Re wire (0.5-1μm diameter) and plate (1-3mm diameter) samples (annealed and unannealed) to 33dpa and 573K. It was found grain boundaries and dislocations act as defect sinks at 573K. Additionally, radiation enhanced Re grain boundary enrichment was observed for first time. The effect of grain size on cluster behaviour at 773K was also analysed. Commercial wire and lab-made plate W-3Re, W-5Re and W-25Re alloys were irradiated to 33dpa at 773K. The larger grain boundary area in wire samples is suspected of acting as a sink for self-interstitials leaving more vacancies for promoting cluster formation compared to lab-made samples. The discoveries made in this thesis broaden our current understanding of irradiation induced phase formation in tungsten. Their implications on plasma facing component design are discussed as well as recommendations for improvements. Further, areas requiring further research in this field are also highlighted.
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Paukert, Marco [Verfasser], and C. [Akademischer Betreuer] Hoose. "Droplet freezing in clouds induced by mineral dust particles: Sensitivities of precipitation and radiation / Marco Paukert. Betreuer: C. Hoose." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1110969600/34.

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Popel, Aleksej. "The effect of radiation damage by fission fragments on the structural stability and dissolution of the UO2 fuel matrix." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/265103.

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The aim of this work was to study the separate effect of fission fragment damage on the structural integrity and matrix dissolution of uranium dioxide in water. Radiation damage similar to fission damage was created by irradiating bulk undoped and doped ‘SIMFUEL’ disks of UO2, undoped bulk CeO2 and thin films of UO2 and CeO2 with high energy Xe and U ions. The UO2 thin films, with thicknesses in the range of 90 – 150 nm, were deposited onto (001), (110) and (111) orientations of single crystal LSAT (Al10La3O51Sr14Ta7) and YSZ (Yttria-Stabilised Zirconia) substrates. The CeO2 thin films were deposited onto single crystal silicon (001) substrates. Part of the bulk UO2 and CeO2 samples, the thin films of UO2 on the LSAT substrates and the thin films of CeO2 were irradiated with 92 MeV 129Xe23+ ions to a fluence of 4.8 × 1015 ions/cm2 to simulate the damage produced by fission fragments in uranium dioxide nuclear fuel. Part of the bulk UO2 and CeO2 samples and the thin films of UO2 on the YSZ substrates were irradiated with 110 MeV 238U31+ ions to a fluence of 5 × 1010, 5 × 1011 and 5 × 1012 ions/cm2 to study the accumulation of the damage induced. The irradiated and unirradiated samples were studied using scanning electron microscopy (SEM), focused ion beam (FIB), atomic force microscopy (AFM), energy dispersive X-ray (EDX) spectroscopy, electron probe microanalysis (EPMA), X-ray diffraction (XRD), electron backscatter diffraction (EBSD), secondary ion mass spectrometry (SIMS) and X-ray photoelectron spectroscopy (XPS) techniques to characterise the as-produced samples and assess the effects of the ion irradiations. Dissolution experiments were conducted to assess the effect of the Xe ion irradiation on the dissolution of the thin film UO2 samples on the LSAT substrates and the bulk and thin film CeO2 samples. The solutions obtained from the leaching of the irradiated and unirradiated samples were analysed using inductively coupled plasma mass spectrometry (ICP-MS). XRD studies of the bulk UO2 samples showed that the ion irradiations resulted in an increased lattice parameter, microstrain and decreased crystallite size, as expected. The irradiated UO2 thin films on the LSAT substrates underwent significant microstructural and crystallographic rearrangements. It was shown that by irradiating thin films of UO2 with high energy, high fluence ions, it is possible to produce a structure that is similar to a thin slice through the high burn-up structure. It is expected that the ion irradiation induced chemical mixing of the UO2 films with the substrate elements (La, Sr, Al, Ta). As a result, a material similar to a doped SIMFUEL with induced radiation damage was produced.
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Books on the topic "Radiation induced precipitation"

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A, Fuselier Stephen, Rairden R. L, and United States. National Aeronautics and Space Administration., eds. Measurement of precipitation induced FUV emission and Geocoronal Lyman Alpha from the IMI mission: Final report. [Washington, D.C: National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. Studies of the aurorally-induced ultraviolet emissions on the nightside of Venus: Report for period 1-1-85 - 3-31-86. [Washington, DC: National Aeronautics and Space Administration, 1986.

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Studies of the aurorally-induced ultraviolet emissions on the nightside of Venus: Report for period 1-1-85 - 3-31-86. [Washington, DC: National Aeronautics and Space Administration, 1986.

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Book chapters on the topic "Radiation induced precipitation"

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Khirunenko, L. I., V. I. Shakhovtsov, V. V. Shumov, and V. I. Yashnik. "Some Properties of Oxygen-Related Radiation Induced Defects in Silicon and Germanium." In Early Stages of Oxygen Precipitation in Silicon, 403–9. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0355-5_28.

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Soisson, Frédéric, and Chu Chun Fu. "Atomistic Simulations of Copper Precipitation and Radiation Induced Segregation in α-Iron." In Solid State Phenomena, 107–12. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-56-6.107.

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Castin, Nicolas, and Lorenzo Malerba. "Modeling Radiation-Induced Segregation and Precipitation: Contributions and Future Perspectives from Artificial Neural Networks." In Handbook of Materials Modeling, 2517–38. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-44680-6_140.

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Castin, Nicolas, and Lorenzo Malerba. "Modeling Radiation-Induced Segregation and Precipitation: Contributions and Future Perspectives from Artificial Neural Networks." In Handbook of Materials Modeling, 1–22. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-50257-1_140-1.

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Belli, M., D. T. Goodhead, F. Ianzini, T. J. Jenner, G. Simone, and M. A. Tabocchini. "The Use of DNA Precipitation Assay for Evaluating DSB Induced by High and Low LET Radiations: Comparison with Sedimentation Results." In The Early Effects of Radiation on DNA, 309–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-75148-6_32.

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IANZINI, F., M. BELLI, M. A. TABOCCHINI, and E. PAGANI. "INFLUENCE OF DNA-PROTEIN CROSSLINKS ON THE RADIATION INDUCED DNA DSB MEASURED BY THE DNA PRECIPITATION ASSAY." In Radiation Research: A Twentieth-century Perspective, 305. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-12-168561-4.51032-5.

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Conference papers on the topic "Radiation induced precipitation"

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Kharchenko, Vasyl, Dmytro Kharchenko, Viktor Kunriienko, Serhii Kokhan, Tianyuan Xin, and Lu Wu. "Phase Field Modeling of Radiation-Induced Precipitation in Diluted Zirconium Alloys." In 2022 IEEE 12th International Conference Nanomaterials: Applications & Properties (NAP). IEEE, 2022. http://dx.doi.org/10.1109/nap55339.2022.9934767.

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Bhawar, Rohini, Paolo Di Girolamo, Donato Summa, Cyrille Flamant, Dietrich Althausen, Andreas Behrendt, Alan Blyth, et al. "Water vapour intercomparison effort in the frame of the Convective and Orographically‐induced Precipitation Study." In CURRENT PROBLEMS IN ATMOSPHERIC RADIATION (IRS 2008): Proceedings of the International Radiation Symposium (IRC/IAMAS). American Institute of Physics, 2009. http://dx.doi.org/10.1063/1.3116952.

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Di Girolamo, Paolo, Donato Summa, Rohini Bhawar, Tatiana Di Iorio, Marco Caccaini, Igor Veselovskii, and Alexey Kolgotin. "Observation of a Saharan dust outbreaks in the frame of the Convective and Orographically‐induced Precipitation Study." In CURRENT PROBLEMS IN ATMOSPHERIC RADIATION (IRS 2008): Proceedings of the International Radiation Symposium (IRC/IAMAS). American Institute of Physics, 2009. http://dx.doi.org/10.1063/1.3116937.

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Di Girolamo, Paolo, Rohini Bhawar, Donato Summa, Tatiana Di Iorio, and Belay B. Demoz. "Raman Lidar Observations of a MCS in the frame of the Convective and Orographically‐induced Precipitation Study." In CURRENT PROBLEMS IN ATMOSPHERIC RADIATION (IRS 2008): Proceedings of the International Radiation Symposium (IRC/IAMAS). American Institute of Physics, 2009. http://dx.doi.org/10.1063/1.3116957.

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Stelitano, Dario, Paolo Di Girolamo, and Donato Summa. "Characterization of particle hygroscopicity by Raman lidar: Selected case studies from the convective and orographically-induced precipitation study." In RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN (IRS2012): Proceedings of the International Radiation Symposium (IRC/IAMAS). AIP, 2013. http://dx.doi.org/10.1063/1.4804742.

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Di Girolamo, Paolo, Donato Summa, Rohini Bhawar, Tatiana Di Iorio, Geraint Vaughan, Emily Norton, and Gerhard Peters. "Lidar and Radar Measurements of the melting layer in the frame of the Convective and Orographically‐induced Precipitation Study." In CURRENT PROBLEMS IN ATMOSPHERIC RADIATION (IRS 2008): Proceedings of the International Radiation Symposium (IRC/IAMAS). American Institute of Physics, 2009. http://dx.doi.org/10.1063/1.3116956.

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Di Girolamo, Paolo, Donato Summa, and Dario Stelitano. "Characterization of convection-related parameters by Raman lidar: Selected case studies from the convective and orographically-induced precipitation study." In RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN (IRS2012): Proceedings of the International Radiation Symposium (IRC/IAMAS). AIP, 2013. http://dx.doi.org/10.1063/1.4804749.

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Summa, Donato, Paolo Di Girolamo, and Dario Stelitano. "Characterization of PBL height and structure by Raman lidar: Selected case studies from the convective and orographically-induced precipitation study." In RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN (IRS2012): Proceedings of the International Radiation Symposium (IRC/IAMAS). AIP, 2013. http://dx.doi.org/10.1063/1.4804743.

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Sagisaka, Mitsuyuki, Yoshihiro Isobe, Frank Garner, Satoshi Fujita, and Taira Okita. "Development of Electrical Resistivity Measurement Systems for Inspecting Void Swelling in Irradiated Microscopy Discs." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29893.

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Results are presented of resistivity change measurements made on a model Fe-Cr-Ni-Ti-C austenitic alloy irradiated in the Fast Flux Test Facility to doses ranging from 1.87 to 67.8 dpa. Two different electrical resistivity measurement systems were developed to overcome problems associated with examination of small microscopy specimens in order to investigate small changes in resistivity arising from voids and other radiation-induced microstructural features. A correlation is shown between resistivity changes arising primarily from void swelling. However, contributions arising probably from radiation-induced redistribution and perhaps precipitation of carbon and titanium can dominate the resistivity at low dpa levels.
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Margolin, B., V. Shvetsova, A. Gulenko, V. Nikolaev, D. Lidbury, and E. Keim. "Physical and Mechanical Aspects of Radiation Embrittlement of RPV Steels." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61133.

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A multi-scale approach to brittle fracture of irradiated RPV steels has been developed within the EURATOM FP6 Integrated Project PERFECT, and the EC-sponsored ISTC Project 3072: “Modelling of Brittle and Ductile Fracture and Prediction of Irradiation Damage Effects on Fracture Toughness Properties of Steels for Reactor Pressure Vessels on the Basis of Local Approach”. In the present paper, the physical and mechanical aspects of the irradiation embrittlement phenomenon are analysed on the basis of a multi-scale approach that includes the physical mechanisms of irradiation damage, the physical mechanisms of nucleation and propagation of cleavage microcracks, formulation of a local approach criterion and calculation of fracture toughness. It has become clear from the study performed that irradiation embrittlement is not only due to the hardening of material as traditionally considered. Damage features such as irradiation-induced lattice defects, element precipitation and impurity segregation also affect cleavage microcrack nucleation, although they do not appreciably change the critical stress for microcrack propagation. It is shown that irradiation embrittlement of RPV steels is connected both with the increase of yield stress (mechanical factor) and the decrease of the critical stress for microcrack nucleation (physical factor). This finding allows an interpretation of the experimental observations, showing that for some cases there is no simple one-to-one relationship between the brittle-to-ductile transition temperature shift ΔTtr and the corresponding increase in yield stress ΔσY. For example, this explains why irradiation-induced phosphorus segregation may significantly increase the transition temperature shift ΔTtr but does not result in a significant increase in yield stress. Calculation of the KJC(T) curves has shown that the contributions of mechanical and physical factors in irradiation embrittlement may differ for various steels. So, for low-alloy, low-strength steel the mechanical factor predominates, while for RPV steels both of these factors control irradiation embrittlement. The results obtained have been interpreted with reference to a local cleavage fracture criterion.
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Reports on the topic "Radiation induced precipitation"

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Arthur T. Motta. Irradiation Induced Precipitation and Dissolution of Intermetallics in Zr Alloys Studied Using Synchrotron Radiation. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/832830.

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