Search Results - "Donnelly, S.E."

New Microscope and Ion Accelerators for Materials Investigations (MIAMI-2) system at the University of Huddersfield by Greaves, G., Mir, A.H., Harrison, R.W., Tunes, M.A., Donnelly, S.E., Hinks, J.A.

“…Radiation damage is a complex dynamic process with multiple atomic mechanisms interacting and competing to determine the end state of the material…”
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Influence of pre-implanted helium on dislocation loop type in tungsten under self-ion irradiation by Harrison, R.W., Hinks, J.A., Donnelly, S.E.

“…Transmission electron microscopy with in-situ ion irradiation has been used to examine dislocation loop formation during self-ion irradiation of pristine W and…”
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Damage microstructure evolution of helium ion irradiated SiC under fusion relevant temperatures by Harrison, R.W., Ebert, S., Hinks, J.A., Donnelly, S.E.

“…In-situ transmission electron microscopy (TEM) with ion irradiation has been used to study the damage microstructure evolution of He ion irradiated 4-H SiC at…”
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Chemical effects on He bubble superlattice formation in high entropy alloys by Harrison, R.W., Greaves, G., Le, H., Bei, H., Zhang, Y., Donnelly, S.E.

“…•High entropy alloys (HEAs) have complex defect diffusion characteristics and “sluggish diffusion”.•Novel observation of helium bubble lattice formation in the…”
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Structural defect accumulation in tungsten and tungsten-5wt.% tantalum under incremental proton damage by Ipatova, I., Harrison, R.W., Wady, P.T., Shubeita, S.M., Terentyev, D., Donnelly, S.E., Jimenez-Melero, E.

“…We have performed proton irradiation of W and W-5wt.%Ta materials at 350 °C with a step-wise damage level increase up to 0.7 dpa and using two beam energies,…”
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Radiation-induced formation, annealing and ordering of voids in crystals: Theory and experiment by Dubinko, V.I., Guglya, A.G., Donnelly, S.E.

“…Void ordering has been observed in very different radiation environments ranging from metals to ionic crystals bombarded with energetic particles. The void…”
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Study of nanocrystalline TiN/Si3N4 thin films deposited using a dual ion beam method by COLLIGON, J. S, VISHNYAKOV, V, VALIZADEH, R, DONNELLY, S. E, KUMASHIRO, S

“…A dual ion beam system is used to produce hard nanocomposite TiN/Si3N4 coatings on Si. Cross--sectional high resolution transmission electron microscopy…”
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A study of the formation of nanometer-scale cavities in helium-implanted 4H-SiC by Zhang, C.H., Donnelly, S.E., Vishnyakov, V.M., Evans, J.H., Shibayama, T., Sun, Y.M.

“…In this work, the annealing behavior of microstructures in 4H-SiC helium-implanted at about 500 K to moderate doses (2.5–5) × 10 16 ions cm −2 is studied by…”
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In situ TEM investigations of the microstructural changes and radiation tolerance in SiC nanowhiskers irradiated with He ions at high temperatures by Aradi, E., Lewis-Fell, J., Greaves, G., Donnelly, S.E., Hinks, J.A.

“…Using in-situ transmission electron microscopy (TEM) with ion irradiation, we investigated the microstructural changes in silicon carbide nanowhiskers (SiC…”
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The effect of ion-beam specimen preparation techniques on vacancy-type defects in silicon by Gandy, A.S., Donnelly, S.E., Beaufort, M.-F., Vishnyakov, V.M., Barbot, J.-F.

“…Ion bombardment is frequently used in the preparation of thin foils of a variety of materials for analysis by transmission electron microscopy (TEM) and…”
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The effects of radiation damage and impurities on void dynamics in silicon by Donnelly, S.E, Vishnyakov, V.M, Birtcher, R.C, Carter, G

“…Transmission electron microscopy (TEM) has been used to study the effects of implanted oxygen or carbon on the dynamics of cavity growth in silicon. The…”
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Low-temperature investigations of ion-induced amorphisation in silicon carbide nanowhiskers under helium irradiation by Aradi, E., Lewis-Fell, J., Greaves, G., Donnelly, S.E., Hinks, J.A.

“…•Silicon carbide nanowhiskers did not amorphise at room temperature up to the doses reported here.•Relatively low swelling was measured in the NWs as compared…”
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A study of the effect of helium concentration and displacement damage on the microstructure of helium ion irradiated tungsten by Harrison, R.W., Greaves, G., Hinks, J.A., Donnelly, S.E.

“…Transmission electron microscopy (TEM) with in-situ He ion irradiation has been used to examine the damage microstructure of W when varying the helium…”
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Cascade size and dose rate effects on α′ precipitation in ion-irradiated Fe14Cr alloy by Harrison, R.W., Carruthers, A.W., Hinks, J.A., Burke, M.G., Donnelly, S.E.

“…Dose rate and cascade size effects on α′ formation in Fe14Cr have been studied under ion irradiation using analytical scanning transmission electron…”
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Local chemical instabilities in 20Cr25Ni Nb-stabilised austenitic stainless steel induced by proton irradiation by Barcellini, C., Harrison, R.W., Dumbill, S., Donnelly, S.E., Jimenez-Melero, E.

“…We have assessed the local solute redistribution at defect sinks in 20Cr25Ni Nb-stabilised austenitic stainless steel after proton irradiation at three…”
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Comparative irradiation response of an austenitic stainless steel with its high-entropy alloy counterpart by Tunes, M.A., Greaves, G., Bei, H., Edmondson, P.D., Zhang, Y., Donnelly, S.E., Schön, C.G.

“…Two metallic alloys in the quaternary system Fe–Cr–Mn–Ni were irradiated in situ within a transmission electron microscope (TEM) using Xe+ heavy ions in the…”
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Intermetallic Re phases formed in ion irradiated WRe alloy by Harrison, R.W., Greaves, G., Hinks, J.A., Donnelly, S.E.

“…Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable…”
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Evolution of radiation-induced lattice defects in 20/25 Nb-stabilised austenitic stainless steel during in-situ proton irradiation by Barcellini, C., Harrison, R.W., Dumbill, S., Donnelly, S.E., Jimenez-Melero, E.

“…We have monitored in situ the lattice defect evolution induced by proton irradiation in 20Cr-25Ni Nb-stabilised stainless steel, used as fuel cladding material…”
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Effect of He implantation on the microstructure of zircaloy-4 studied using in situ TEM by Tunes, M.A., Harrison, R.W., Greaves, G., Hinks, J.A., Donnelly, S.E.

“…Zirconium alloys are of great importance to the nuclear industry as they have been widely used as cladding materials in light-water reactors since the 1960s…”
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Local chemical instabilities in 20Cr 25Ni Nb-stabilised austenitic stainless steel induced by proton irradiation by Barcellini, C., Harrison, R.W., Dumbill, S., Donnelly, S.E., Jimenez-Melero, E.

“…We have assessed the local solute redistribution at defect sinks in 20Cr25Ni Nb-stabilised austenitic stainless steel after proton irradiation at three…”
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