Materials Literature
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A strong influence of illumination and electric bias on the Curie temperature and saturation value of the magnetization is demonstrated for semiconductor structures containing a modulation-doped p-type Cd(0.96)Mn(0.04)Te quantum well placed in various built-in electric fields. It is shown that both light beam and bias…
A few theoretical models predict Fe to display both ferromagnetic and antiferromagnetic phases, depending on the volume of the unit cell. A proper choice of the substrate allows the growth of thin Fe overlayers with structures different from the bcc bulk one. The Cu3Au(001) substrate is a suitable candidate for testin…
The excitonic luminescence of an isolated polydiacetylene polymer chain in its monomer matrix is studied by micro-photoluminescence. These chains behave as perfect 1D semiconducting wires with the expected 1/$\sqrt{E}$ density of states between 5 and 50 K. The temperature dependence of the homogeneous width is explain…
Abstract The DepthCube™ 3D display is a solid‐state multi‐planar volumetric display system in which a DLP based high speed projector projects slices of the 3D scene onto a stack of LC scattering shutters acting as an electronically controlled projection volume. The scattering shutters are based on Polymer Stabilized C…
La0.95K0.05MnO3 has been studied with reference to the internal friction, electrical resistance and ac magnetic susceptibility. Large magnetoresistance (MR) exists in a wide temperature range (20–275 K) in La0.95K0.05MnO3 specimens at a small magnetic field (0.3 T). The resistance has a sharp peak at about 265 K, and…
As the primary component or as an additive with a content of less than three percent, waxes determine or modify the properties of the respective material system. The areas of application are numerous. The following article presents fundamental data on substance and structure as well as on the manufacture of important…
Abstract Ion capturing films “TOP COAT TA606B20” (C &C, IND. CO.) are installed beneath the polyimide orientation films over the ITO electrode films in a polymer‐stabilized ferroelectric liquid crystal display exhibiting V‐shaped switching. The ion capturing films are shown to play the following two roles: one is…
Storage of tritium in the form of metal hydride is a common technique in tritium handling facilities and is generally acknowledged as the only option for the storage of large tritium inventories in future fusion reactor applications. Since accounting for large inventories by the conventional TPVC (Temperature, Pressur…
Tritium radioluminography was applied to pure vanadium and V-5 mol%Fe alloy to observe the tritium distribution and to evaluate the local tritium concentration in them. It was demonstrated that the tritium distribution at a microscopic area in the specimens was quantitatively and graphically displayed. In the pure van…
Titanium was selected for evaluation as a tritium storage material. Titanium-deuterium desorption isotherm data at 550, 600, 649, 700, and 760°C are presented and were used to evaluate storage vessel design loading limits. Two prototype Hydride Storage Vessels (HSVs) containing a nominal 4400 grams of Ergenics HY-STOR…
In this work the influence of three different stabiliser systems on the stress rupture behaviour of high density polyethylene (PE-HD) pipes under constant internal pressure was examined at 60 and 80°C with special consideration of the quasi-brittle failure by growth of a single crack in the failure regime preceding th…
The identical ∑ = 5, (310)-[001] symmetric tilt grain boundary (STGB) was fabricated in three different bcc metals (Nb, Mo and Ta) by ultrahigh-vacuum diffusion bonding and the atomic structure was observed by high-resolution transmission electron microscopy. We report the results of quantitative measures of the rigid…
A new hydrogen isotope separation column has been constructed, manufactured and tested with deuterium and protium. After successful commissioning tests the column was connected to the existing gas chromatographic Isotope Separation System within a glove box. It was demonstrated that equipment which has already been op…
An accurate and particular description of isotope effects in hydrogen transport within structural martensitic steels is highly needed in nuclear fusion technology in order to describe the tritium-material interaction on the basis of the properties of the non-radioactive hydrogen isotopes (protium and deuterium). As a…
We investigate the influence of treatment conditions of polyester (PES) fabric on the quantity of extracted oligomers and their composition. Oligomers are extracted by petroleum ether and dichloromethane. The quantities of oligomers from the treated and untreated fabrics are determined gravimetrically, whereas the com…
Ester-disazo dyes having perfluorobutyl and diethylamino groups in their molecules have been prepared. Their absorption maxima were observed in the range λ = 483–529 nm in a liquid crystal solvent. The solubility in terms of dye structure was in the order: monoesterdisazo >trisazo >diester-disazo. The solubility of th…
Superpermeable membranes based on Group Va metals can be applied in fusion devices for a short way separation of D/T mixtures from He, for an active control of particle fluxes and as a general-purpose D/T pump that may be used in particularly in tritium handling systems. Superpermeable membranes being used for D/T sep…
The crystal structure of leightonite, K 2 Ca 2 Cu(SO 4 ) 4 ·2H 2 O, C2/c, a = 11.654(2), b = 7.497(1), c = 10.097(1) Å; b = 125.21(1)°, V = 720.8(2) Å 3 , Z = 2 has been solved by direct methods and refined to R = 3.90% for 1564 F o > 4σ(F o ), using MoKα X-ray data from a crystal twinned on {201̅}. Structural sub-…
This study e valuates the dimensional changes of steam-ironed plain knitted wool fabrics after conditioning in air and then washing with an IWS 7A wash cycle. During steam ironing, different extensions are given to the fabrics by using larger sized ironing boards. Part of the expansion of the fabrics is recovered duri…
Polymers molecules in solution or melt are more or less flexible and continuously change their shape and size. Thus, characteristic properties of the system fluctuate around statistical mean values which are dependent on the concentration of the solution, on the quality of the solvent used, and on the specific structu…