Results 261 to 270 of about 302,537 (306)

Xenon Ion Irradiation of α-Fe

Physica Status Solidi (a), 1983
The dislocation loop damage structures generated by low dose (≦ 5 × 1016 ions m−2) 80 keV Xe++ ion irradiations of α-Fe at room temperature and 77 K are studied by transmission electron microscopy, b = a/2〈111〉 loops are observed for each irradiation condition whereas b = a〈100〉 loops are not observed after irradiation at 77 K and are only observed at ...
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Primary radical ions in irradiated carbonates

Physical Chemistry Chemical Physics
The decomposition of primary radical cations in irradiated carbonates via proton transfer is thermodynamically favorable but kinetically hindered.
Irina S. Tretyakova, Vsevolod I. Borovkov   +1 more
openaire   +2 more sources

Nanoindentation on ion irradiated steels

Journal of Nuclear Materials, 2009
Radiation induced mechanical property changes can cause major difficulties in designing systems operating in a radiation environment. Investigating these mechanical property changes in an irradiation environment is a costly and time consuming activity.
P. Hosemann, C. Vieh, R.R. Greco, S. Kabra, J.A. Valdez, M.J. Cappiello, S.A. Maloy   +6 more
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Ion Irradiation of Preceramic Polymer Thin Films

Journal of the American Ceramic Society, 1996
Thin films of two preceramic polymers, namely polycarbosilane (PCS) and a silicone resin (SR350), were deposited on Si substrates. Instead of employing conventional annealing at high temperatures in an inert atmosphere, ion irradiation was used to achieve the polymer‐to‐ceramic conversion.
J. C. PIVIN, COLOMBO, PAOLO, M. TONIDANDEL   +2 more
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Fullerene ion irradiation to silicon

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1997
Abstract Silicon has been irradiated by singly charged C60 fullerene ions with an ion dose of up to 1 × 1013 ions/cm2 at room temperature in order to study the damage formation of cluster ion bombardment on solid surfaces. Singly and doubly charged fullerene ions and some daughter ions of fullerene were observed. Mass separation was accomplished by a
M. Tanomura, D. Takeuchi, J. Matsuo, G.H. Takaoka, I. Yamada   +4 more
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Challenges to the use of ion irradiation for emulating reactor irradiation

Journal of Materials Research, 2015
Abstract
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Ion beam irradiation of polymers

AIP Conference Proceedings, 1996
Mylar and kapton films were irradiated with H+ (2.5 Mev) or C4+ (12.5 Mev) beams, at doses up to 1.99×1016 H+/cm2 and 2.48×1015 C4+/cm2. Analysis of scattered projectiles simultaneously to irradiation has allowed discerning and following several changes undergone by the films, such as loss of elements, density changes, compaction and movement of ...
Saúl Romero H., Ghiraldo Murillo O., Rafael Policroniades R., Marco Fernández B., Jorge Fernández A., Octavio Alvarez F.   +5 more
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Ion irradiation of astrophysical ices

Planetary and Space Science, 1995
We report recent experimental studies on the physical—chemical effects induced by fast ions colliding with frozen gases (CO. CH3OH, CH4, CO2) and mixtures with water simulating icy targets in space (frosts on external planets and satellites. comets and interstellar ices). We have studied, by lR spectroscopy, the formation of new molecules.
G. Strazzulla, A.C. Castorina, M.E. Palumbo   +2 more
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Erosion of ices by ion irradiation

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1987
We have studied the erosion rates of icy films under irradiation by a wide variety of ion beams, from H to Kr, and energies from 1 keV to 100 MeV. The films are prepared by condensation of vapors (H 2 O, CO 2 , NH 3 and mixtures) onto KBr substrates maintained at liquid nitrogen temperature.
Benit, J., Bibring, J.P., Della Negra, S., Le Beyec, Y., Mendenhall, M., Rocard, F., Standing, K.   +6 more
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Damage of YBa2Cu3O by ion irradiation

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1990
Abstract Specimens of high-Tc superconductor YBa2Cu3Ox have been irradiated with Si ions (7 MeV) up to 10 ions/nm2. Monolayers of fine particles (less than 5 ω size) were prepared on metal plates and X-ray diffraction patterns were taken before and after the irradiations.
H. Özkan, F.G. Karioris, E.R. Vance, J. Eridon, L. Cartz   +4 more
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