Materials Literature
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In the frame of an international cooperation a 4 year long project was executed to determine thermal conductivity in metallic melts. During the project, the University of Miskolc designed and developed unique apparatus which was capable to perform measurements under microgravity conditions. The experiments were carrie…
This investigation has examined the feasibility of fabricating near-net shape components containing TiNi shape memory constituents by combining the attributes of ultrasonic consolidation and reaction heat treatment. An optimization design of experiment was conducted to determine the ultrasonic consolidation control pa…
Carbon nanotubes (CNTs) have been considered as prima candidates as cold-cathode electron emitters for years due to the excellent field emission characteristics they exhibit in vacuum. This high field emission of electrons is mostly contributed due to the large aspect ratio and small radius of tip curvature of each CN…
Alloys displaying positive enthalpy of mixing demix below a critical temperature. In Co-Cu and related ternaries the miscibility gap is metastable, i.e. it occurs at temperatures lower than the liquidus. In order to study the liquid phase separation high melt undercooling is necessary. This was obtained via rapid soli…
The lattice strains in large tensile deformations, up to the fracture of the sample were measured using neutron TOF method. For the first time, the range of large deformation was studied measuring lattice strain in the deformation neck and using special correction for macrostress value. It was found that during large…
(2010). PSEUDOSTAUROSIRA MEDLINIAE A NEW NAME FOR PSEUDOSTAUROSIRA ELLIPTICA (GASSE) JUNG ET MEDLIN. Diatom Research: Vol. 25, No. 1, pp. 225-226.
The Early Flight Fission-Test Facilities (EFF-TF) team at NASA Marshall Space Flight Center (MSFC) has been tasked by the Naval Reactors Prime Contract Team (NRPCT) to provide a cost and delivery rough order of magnitude estimate for a refractory metal-based lithium (Li) flow circuit. The design is based on the stainl…
The nature of the exchange interactions in three metal-organic coordination networks families is examined. These families have a general form ML2(bpy). Since (bpy) molecules are very long, our networks are reduced to effectively one-dimensional chain systems with very weak interchain interaction. The Bonner–Fisher and…
This paper deals with the modelling of plasma discharges induced by electrohydrodynamic actuators. We propose a multi-model method based on fluid conservation equations that allows an increase of the maximum time step imposed by usual explicit schemes. The idea consists in replacing the numerical integration of the pl…
A new and simple formulation of equivalent conductivity in the direction normal to the laminations is derived by analyzing and comparing the electromagnetic fields and the eddy current losses in a laminated iron core and a single lamination. Then the anisotropic conductivity tensor is updated. The conductivity formula…
Abstract Thermal properties and crystallization behav-ior of PET were investigated by controlling the annealing conditions, such as relative humidity, annealing temperature, and annealing time. The variations of moisture content, glass transition temperature (T g ) and cold crystallization temperature (T cc ) were ana…
Abstract We have investigated the carbon plasma facing material and hydrogen atom interaction by the use of molecular dynamics simulation to clarify chemical erosion processes on divertor plate. The present paper is our first try at elucidation of temperature dependence by the molecular dynamics. Temperature was contr…
The process of carbon monoxide (CO) oxidation on the surface of a system comprising nanodimensional gold clusters deposited onto thin films of titanium oxide of variable stoichiometry formed on a Re(1000) single crystal surface has been studied by methods of thermodesorption, IR, and X-ray photoelectron spectroscopy.…
Crack growth behavior under low cycle fatigue in reduced activation ferritic/martensitic steel, F82H IEA-heat (Fe-8Cr-2W-0.2V-0.02Ta), was investigated to improve the fatigue life assessment method of fusion reactor structural material. Low cycle fatigue test was carried out at room temperature in air at a total strai…
In this study, thin films of CuO were deposited on glass substrates usingthermal laser evaporation technique. The structure characterization of the film wascarried out with XRD. The results of XRD show that all samples have apolycrystalline .The optical measurements on the deposited films were performedto determine th…
The epitaxially grown Ba(Fe0.2Zr0.8)O3−δ (BFZO) films with various thicknesses ranging from 30 to 170 nm were successfully synthesized on (001)SrTiO3 (STO) substrates by a pulsed laser-beam deposition method. The results of x-ray diffraction and transmission electron microscopy revealed that all the films exhibited th…
A sharp pulsed-neutron beam, which has narrow width and large attenuation, will enhance ability to separate peak position diffracted from crystal structure in time-of-flight measurement method. Traditional technique to satisfy the request above is to use Boron for decoupling higher cut-off energy. Disadvantage, howeve…
The resistivity increase caused by grain boundary (GB) scattering is a challenging problem in the formation of narrow copper (Cu) interconnects less than 100 nm wide. In order to reduce GB scattering, a new annealing method was successfully developed to enhance the grain growth of electroplated Cu films using supercri…
Abstract Metallic wire used in medical devices contains small defects that must be accounted for in design to guard against failure. Sites of probable failure are often constituent inclusion particles, pores, or surface defects that behave as crack-like, stress concentrators. The aim of this research is to examine the…
We propose new precursors for bulk low- k films with plasma damage resistance. Our newly designed precursors contain long-chain hydrocarbon groups such as i -butyl and n -propyl groups. Using these precursors, we successfully produced films containing Si–CH 2 –Si groups by plasma-enhanced chemical vapor deposition (PE…