Results 61 to 70 of about 117,491 (291)

Surface nanostructuring of titanium alloy dental screws by 10 keV Ar+ irradiation

Results in Surfaces and Interfaces
The influence of 10 keV Ar+ ion irradiation on the surface topography of Ti–6Al–4V dental screws was investigated. The surface facing the ion beam became uniformly covered with nanoprotrusions, the size of which increased with the ion fluence.
A.E. Ieshkin, K.F. Minnebaev, D.S. Kireev, A.A. Tatarintsev   +3 more
doaj   +1 more source

Effect of irradiation temperature and ion flux on electrical isolation of GaN

, 2015
We study the evolution of sheet resistance of n-type GaN epilayers irradiated with MeV ¹H and ¹²C ions. Results show that both implantation temperature (varied from 77 up to 423 K) and ion beam flux affect the process of electrical isolation in the case ...
Boudinov, H., Jagadish, C., Kucheyev, S. O., Li, G., Williams, J. S.   +4 more
core   +1 more source

Investigation of ion induced bending mechanism for nanostructures [PDF]

, 2014
Ion induced bending is a promising controlled technique for manipulating nanoscale structures. However, the underlying mechanism of the process is not well understood.
Borschel C, Medhekar N V, Rajput N S, Tripathi S K, Yoshida T, Ziegler J F   +5 more
core   +1 more source

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source

Surface charging of thick porous water ice layers relevant for ion sputtering experiments [PDF]

, 2016
We use a laboratory facility to study the sputtering properties of centimeter-thick porous water ice subjected to the bombardment of ions and electrons to better understand the formation of exospheres of the icy moons of Jupiter.
Brouet, Y., Galli, A., Jost, B., Poch, O., Pommerol, A., Thomas, N., Tulej, M., Vorburger, A., Wurz, P.   +8 more
core   +2 more sources

Mutagenic effects of ion beam irradiation on rice

Breeding Science, 2009
We investigated the usefulness of ion beams for mutation breeding in rice (Oryza sativa L.) by comparing the efficiency (i.e., the ratio of desirable mutations to plant damage such as lethality and sterility), mutation rate, spectrum, and optimum dose to that of gamma rays.
Hiroyasu Yamaguchi, Yoshihiro Hase, Atsushi Tanaka, Naoya Shikazono, Konosuke Degi, Akemi Shimizu, Toshikazu Morishita   +6 more
openaire   +2 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Graft copolymerization of GMA and EDMA on PVDF to hydrophilic surface modification by electron beam irradiation

Nuclear Engineering and Technology, 2020
This study was carried out to convert the hydrophobic characteristics of PVDF to hydrophilic. Poly(vinylidene fluorine) (PVDF) was grafted by electron beam irradiation and sulfonated.
Seung Joo Lim, In Hwan Shin
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source