Materials Literature
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Four copper-film-plated steel cords (abbreviated hereafter as copper-plated cord) with different thickness of copper film from 32 to 90 nm were prepared and their adhesion properties with rubber compound were investigated. Adhesion properties improved with the decrease in the thickness of the copper film. Unaged pull-…
Light scatter is one of the most basic of measurements made in flow cytometry. This unit presents a short commentary on what light scatter is and how it is measured. First, the author describes the basic principles of the scattering of light from small particles such as cells. This is followed by a discussion of metho…
Transmission electron microscopy (TEM) studies of the oxide film on the surface of a zirconium alloy have been performed and the crystallography of interfaces has been analysed. Regions of a peculiar microstructure consisting almost entirely of twins have been discovered in the zirconia film. The TEM results have been…
T his paper reports that the crossing-point temperature (CPT), where the heat conduction diminishes at the centre of a symmetrical exothermically reactive solid (or an assembly of packed solid particles), can be considerably different from the set oven temperature during a transient basket heating procedure for measur…
Two Inceptisols (Typic Placaquept and Typic Epiaquept) with placic horizons were selected from the subalpine forest soils in northern Taiwan to evaluate the characteristics and genesis of the placic horizons commonly found in these soils. The placic horizon in the Placaquept had sharp upper and diffuse lower boundarie…
Alloy thin films of hydrogenated silicon–oxygen–carbon (Si,C)Ox x<2, were deposited and analyzed in terms of changes in structure and bonding as a function of rapid thermal annealing between 600 and 1100 °C using a combination of Fourier transform infrared spectroscopy, Raman scattering and high-resolution transmissio…
We prove stability of the kink solution of the Cahn-Hilliard equation ∂tu = ∂( ∂u − u/2 + u3/2), x ∈ ℝ. The proof is based on an inductive renormalization group method, and we obtain detailed asymptotics of the solution as t → ∞. We prove stability of the kink solution of the Cahn-Hilliard equation ∂tu = ∂( ∂u − u/2 +…
The metal hydride (MH) alloy powder for the negative electrode of the Ni/MH battery was first pulverized and oxidized by electrochemically charging and discharging for a number of cycles. The plate of the negative electrode of an experimental cell in this study was made from a mixture of a multicomponent AB 5 ‐ based…
Abstract Methods are described for obtaining elastomers of controlled network chain-length distributions by restricting the reactivity of the polymer chains to their ends, and then end linking these chains with a multi-functional reactant. The networks of this type that have proved to be of greatest interest consist o…
In order to better understand the effect of fine Cu precipitates on the mechanical properties of body-centred-cubic (bcc) Fe, atomic simulations of bcc Fe with bcc Cu precipitates under mechanical loading were conducted by using the molecular dynamics (MD) method in conjunction with embedded atom method (EAM) potentia…
Nanosize particles of CoFe/sub 2/O/sub 4/ have been synthesized by the citrate precursor technique. Considerably higher coercive force (1.68 kOe) than that obtained by the conventional technique (1.00 kOe) is associated with the nanostructure of CoFe/sub 2/O/sub 4/. These nanosize ferrimagnetic CoFe/sub 2/O/sub 4/ par…
Vapor-deposited Ag and Au films exhibit high surface-enhanced Raman scattering (SERS) sensitivity. With thin metal films, SERS spectra can be obtained by using a “backside” configuration in which the laser light is focused through the substrate onto the metal film/liquid (or gas) interface. Use of the “backside” confi…
Spontaneous selective deposition of poly(p-phenylene vinylene) (PPV) by chemical vapor deposition is demonstrated for substrates treated with PPV-growth-inhibiting layers of iron. The Figure shows a Nomarski image of selectively grown parylene-N (squares) and PPV (black square spiral) integrated onto the same substrat…
The diffusion properties of hydrogen have been investigated in homoepitaxial layers of CVD boron doped diamond as a function of the diffusion temperature, the boron dopant concentration and the nature of the hydrogen source (rf or microwave plasma). Preliminary hydrogen effusion experiments on these hydrogenated sampl…
The complex dielectric function of the three stoichiometric compositions GeSb4Te7, GeSb2Te4, and Ge2Sb2Te5 has been measured by spectroscopic ellipsometry in the energy range of 1.4–5.1 eV. Each composition was measured in the amorphous and in the two crystalline states, the metastable face-centered-cubic and the stab…
This paper integrates the research presented in the papers in this special issue of Holmér et al. and Havenith et al. [Holmér, I., Nilsson, H., Havenith, G., Parsons, K. C. (1999) Clothing convective heat exchange: proposal for improved prediction in standards and models. Annals of Occupational Hygiene, in press; Have…
Fully automated or semi-automated scanning electron microscopes (SEM) are now commonly used in semiconductor production and other forms of manufacturing. Testing and proving that the instrument is performing at a satisfactory level of sharpness is an important aspect of quality control. The application of Fourier anal…
Polarized Raman spectra of the ferromagnetic metal ${\mathrm{CrO}}_{2}$ were measured in a broad temperature range including ${T}_{c}\ensuremath{\approx}390 \mathrm{K}.$ The Raman-allowed modes of ${A}_{1g},$ ${B}_{1g},$ ${B}_{2g},$ and ${E}_{g}$ symmetry were identified and compared to the corresponding modes of isos…
Nonwovens can be used as noise control elements for a wide range of applications. This paper suggests a numerical method for calculating their acoustic performance using the theory of Zwikker and Kosten on sound propagation through porous media. The results for nonwovens made from acrylic fibers, cotton, and polyester…
Thin films of vanadium oxides grown on a Pd(111) single crystal surface have been studied using high resolution x-ray photoelectron spectroscopy (XPS), near edge x-ray absorption fine structure (NEXAFS), low-energy electron diffraction (LEED), and scanning tunneling microscopy (STM). The vanadium oxides have been prep…