Materials Literature
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The steady-state velocity of a planar liquid-solid interface is predicted by calculating the free energy dissipated by irreversible processes at the interface and equating it to the available driving free energy. A solute drag term and an intrinsic interfacial mobility term are included in the dissipation calculations…
We present experimental determinations of the cross section for photoionization for $4d$ and $5d$ valence states in transition and noble metals and at the interfaces that these metals form with elemental semiconductors (group IV) in the photon-energy range $h\ensuremath{\nu}=70\ensuremath{-}200$ eV. A description of t…
In strict analogy with the case of silicon, the Hall-coefficient factor of holes in natural diamond is found to be systematically less than unity in the range of temperature $100<T<1000$ K investigated here. A microscopic interpretation is shown to provide information on the reliability of a different set of inv…
A dynamic bond percolation model is defined and studied. The model is intended to describe diffusion of small particles (ions, electrons) in a medium which is statistically disordered (as in ordinary bond percolation), but which is also undergoing dynamic rearrangement processes on a timescale short compared to the ob…
The first-order Raman spectra of vitreous Si${\mathrm{O}}_{2}$ have been studied as a function of sample fictive temperature ${T}_{F}$ for $900\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}\ensuremath{\le}{T}_{F}\ensuremath{\le}1550\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$. Three observations were made: (1) The br…
The interaction of Ti${\mathrm{O}}_{2}$(110) with ${\mathrm{O}}_{2}$, ${\mathrm{H}}_{2}$, CO, and C${\mathrm{O}}_{2}$ was studied by means of low-energy electron diffraction, x-ray photoelectron spectroscopy, electron energy-loss spectroscopy, thermal desorption, electron paramagnetic resonance, and measurements of ch…
The trap distribution analysis of CaSO 4 :Dy has been carried out using a fractional-glow technique. It shows that the TL process in CaSO 4 :Dy involves quasi-continuous distribution of traps with activation energies ranging from 1.15 to 2.39 eV in the 340-370K glow-temperature range. The trap spectrum of CaSO 4 :Dy r…
A method of obtaining polymeric materials showing high anisotropy of electrical conductivity (up to 10 8 ) is reported. Electrical properties of polycarbonate films doped with TTT-TCNQ crystalline CT complex obtained using this method are discussed.
A stochastic mixture model is proposed for the dielectric formed by the powder of an isotropic polycrystalline material included in an embedding medium of air or a non-polar substance. The relevant expression of the complex dielectric constant of the mixture is obtained in terms of the dielectric parameters of the mix…
The salt bridge between Lys-13 (epsilon-NH3+) and Leu-129 (alpha-COO-) in lysozyme was converted to an amide bond by 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide hydrochloride (EDC) reaction in the presence of imidazole (0.3-1 M) at pH 5 and room temperature, followed by dialysis at pH 10. Absence of imidazole unde…
<div class="htmlview paragraph">In this paper the strength of material based on the stressing in rolling contact is described. The investigations result in a guideline according to which the case depth of slewing bearing rings can be determined, if the load on the rolling elements, their size, and the number of…
The static critical behaviour at the normal to incommensurate phase transition in Rb2ZnCl4 has been investigated by means of diffuse X-ray scattering. The measured values of the critical exponents gamma and nu are in good agreement with theoretical estimates for the d=3XY model. Measurements of the diffuse scattering…
The critical opalescence of a binary polymer mixture consisting of polyvinyl methyl ether and deuterated polystyrene was measured by small-angle neutron scattering. In accordance with a mean-field treatment, it was found that the critical exponents $\ensuremath{\nu}$ and $\ensuremath{\gamma}$ are 0.5 and 1, respective…
The alkali metal thermoelectric converter (AMTEC) is a device for the direct conversion of heat to electrical energy. The sodium ion conductor beta"- alumina is used to form a high-temperature regenerative concentration cell for elemental sodium. An AMTEC of mature design should have an efficiency of 20 to 40 percent,…
(1983). Geochemical role of micas in mineral associations: classification, chemistry, and genesis of micas. International Geology Review: Vol. 25, No. 9, pp. 993-1003.
The temperature dependence of the spin Hamiltonian parameters of Eu2+ in orthorhombic sites of KCl crystals has been measured in the range 87–573 K using EPR techniques. In this work, we fit an analytical expression for the predominant parameter b02 as a function of temperature, b02=a0+a1 T+a2 coth θ/2T. With eight ex…
Abstract Below T c = 1.5 K TbAsO 4 is an Ising ferromagnet with induced magnetic moments. A superstructure of the magnetic moments found by Schäfer and Will may be explained by very small ferromagnetic domains. A simple estimation of the free energy at T = 0 yields 0.05 μm for the thickness of these domains. In the or…
Various techniques for tritium removal from the liquid eutectic Li17Pb83 under vacuum are considered as candidates for the tritium removal system (TRS) for the Mirror Advanced Reactor Study (MARS). The TRS baseline parameters require the removal of 60% of the tritium contained in the liquid metal at a tritium partial…
The paper deals with full scale laboratory investigations on a circuit composed of three single phase voltage transformers (10/\sqrt{3}kV, 50 VA) connected to an ungrounded source supply with a zero sequence capacitance. About a hundred energizing operations were performed. Some records of transient states obtained by…
The TRIO-01 experiment is a comprehensive test of in-situ tritium recovery from a miniaturized solid breeder blanket assembly. Other solid breeder blanket performance factors such as thermal hydraulics, tritium permeation, and gas phase chemistry will be tested as well. The capsule assembly is irradiated in the A2 cor…