Now showing items 1-10 of 33
Temperature dependence of deformation-assisted crystallization in amorphous Fe78B13Si9Fe78B13Si9
(The American Institute of Physics, 1998-09-28)
Low-energy ball milling of amorphous Fe78B13Si9Fe78B13Si9 has been performed at temperatures between 25 and 250 °C. Primary crystallization is observed after milling at elevated temperatures, but not after annealing at the ...
Experimental determination of transformation enthalpies of metastable phase transitions in ion-irradiated NiAl3
(Elsevier, 1991-07-01)
A novel experimental technique has been developed by which metastable phase transformations in thin films may be investigated. The technique is demonstrated by the determination of the enthalpies of transformation of two ...
Molecular dynamics study of isobaric and isochoric glass transitions in a model amorphous polymer
(The American Institute of Physics, 1999-04-08)
We perform molecular dynamics simulations of the glass transition through isobaric and isochoric cooling of a model polymeric material. In general, excellent agreement between the simulation results and the existing ...
Extended ensemble molecular dynamics method for constant strain rate uniaxial deformation of polymer systems
(The American Institute of Physics, 1997-09-15)
We describe a novel molecular dynamics (MD) method to simulate the uniaxial deformation of an amorphous polymer. This method is based on a rigorously defined statistical mechanics ensemble appropriate for describing an ...
Ion-induced grain growth in multilayer and coevaporated metal alloy thin films
(Elsevier, 1991-07-01)
Irradiation experiments were conducted on multilayer (ML) and coevaporated (CO) thin films in order to examine the role that the heat-of-mixing ([Delta]Hmix) has in ion-induced grain growth. Room-temperature irradiations ...
Phase formation in ion‐irradiated and annealed Ni‐rich Ni‐Al thin films
(The American Institute of Physics, 1991-02-15)
Phase formation was studied in ion‐irradiated multilayer and coevaporated Ni‐20 at. % Al films supported by Cu, Mo, and Ni transmission electron microscopy (TEM) grids. Irradiation with either 700‐keV Xe or 1.7‐MeV Xe, to ...
The heat‐of‐mixing effect on ion‐induced grain growth
(The American Institute of Physics, 1991-08-01)
Irradiation experiments were conducted on multilayer (ML) and coevaporated (CO) thin films in order to examine the role that the heat‐of‐mixing (ΔHmix) has in ion‐induced grain growth. Room‐temperature irradiations using ...
Hardness and friction of N2+ and Al+ implanted B4C
(Elsevier, 1991-07-01)
Surfaces of boron carbide (B4C) were implanted with 200 keV N2+ or 100 keV Al+ ions to a dose of 8 x 1017 cm -2. Ultralow load indentation via the Nanoindenter was used to determine the changes in surface hardness and ...
Oxide formation and anodic polarization behavior of thin films of amorphous and crystalline Fe---Cr---P alloys prepared by ion beam mixing
(Elsevier, 1991-07-01)
An experimental program has been conducted to determine the effect of phosphorus on the corrosion and passivation behavior of Fe---Cr---P alloys. Chemically homogeneous 60 nm films of Fe---10Cr---xP (x from 0 to 35 at.%) ...
Formation of buried TiN in glass by ion implantation to reduce solar load
(The American Institute of Physics, 1996-09-01)
Ti and N were implanted into soda lime glass to doses up to 4.5×1017 cm−2 to reduce solar load and infrared transmission. Analysis of the Ti+N implant distributions by Rutherford backscattering spectrometry and x‐ray ...