Materials Literature
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Cadmium Telluride: Iodine nanoparticle thin films were prepared by spraying iodine doped CdTe nanoparticles dispersed in 1-Butanol, on the glass substrates kept at 200°C for 20 min. Iodine doped CdTe nanoparticles had been prepared by adding trace amounts of Iodine powder in addition to stoichiometric ratios of Cd and…
The conductor loading method has been used for creating a lossy dielectric material with a desired loss tangent. This method may also be applicable for developing high dielectric constant materials. In this paper, we will present the experimental results of the dielectric properties of BaTiO/sub 3/ and BaTiO/sub 3/ -p…
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
In industrial applications, such as automated on-line semiconductor production, there is a growing realization of the need for the development of a procedure for periodic performance testing of the image sharpness of the scanning electron microscope. Two statistical and comparative measures of image sharpness based on…
In their regulations, the U.S. Environmental Protection Agency and the U.S. Nuclear Regulatory Commission permit the omission of features, events, or processes with probabilities of <10(-4) in 10(4) yr (e.g., a constant frequency of <10(-8) per yr) in assessments of the performance of radioactive waste disposal system…
A time-dependent gas-phase absorption-desorption technique has been used to evaluate the isotope effect on the diffusive transport parameters of hydrogen isotopes in polycrystalline tungsten and the reduced activation ferritic-martensitic steel OPTIFER-IVb.Experiments have been run with both protium and deuterium obta…
The static and dynamic states of the human body directly determine the shape and construction of clothes. Ideally, clothing should provide comfort and protection for the wearer. However, if comfort and mobility are to be maximised, the garment designer has to sacrifice style. The design of clothes worn on the upper bo…
The use of catalysts to improve the exchange kinetics between hydrogen isotopes in the gas phase and that in the solid phase was investigated. Granules of alumina, silica and molecular sieve were coated with platinum as the catalyst. The granules saturated with water at room humidity were packed in a 2-cm diameter col…
This study aims at clarifying the relationship between the surface integrity of PTFE finished by an ultra-precision diamond cutting and the adhesion strength of a metal thin film. As the first step of this study, the basic properties such as surface integrity in the diamond cutting of PTFE and the effect of the surfac…
Abstract We have applied first principles computations to predict the properties of complex hydrides related to the alanate NaAlH 4 , a very promising class of systems for reversible hydrogen storage. The effect of partial substitution on the Na site (by Li or K), and on the Al site (by B or Ga) on the thermodynamic s…
Abstract Thermodynamic calculations with Thermo-Calc software and the steel database TCFE3 was applied to investigate the precipitation behavior of industrial grades of duplex stainless steels with high copper content, 1.6 and 2.3 wt.%, Duplok 27 and DUP 27, respectively. Well-documented super duplex stainless grade S…
The physical and chemical properties of four kinds of modified chitosan materials made by blending chitosan with polyvinylpyrrolidone (PVP) were investigated. All four of these modified chitosan materials were hydrophilic with water contact angles ranging from 59% to 69%. Fourier transform-infrared spectra of the modi…
TlTaSe 3 was prepared from a fused mixture of Tl 4 Ta 2 Se 11 , Ta and Se in the molar ratio 1:2:1. The compound shows dimorphism with H-TlTaSe 3 , hexagonal, space group P6 3 /mmc, a = 7.2436(6), c = 5.9736(6) Å , c/a = 1.213 and O-TlTaSe 3 , orthorhombic, space group Pnma, a = 9.554(13), b = 3.6244(6), c=14.7271(17)…
The photochemical properties of CaF 2 crystals activated by Ce 3+ and Yb 3+ ions are studied. A model of the photodynamic processes induced by pumping UV or VUV radiation in active media is suggested and experimentally verified. This model explains both the presence of color centers of electronic and hole nature in cr…
We studied the role of inorganic P and Se(IV) in calcite precipitation inhibition in a Panoche Creek, California, soil. Calcite precipitation inhibition by inorganic P and Se(IV) was first examined in simple Ca2+-Na+-Cl−-HCO3− solutions. In these simple solutions, the presence of small quantities (~0.2 mg L−1) of inor…
Abstract The sarkinite, Mn 2 (OH)AsO 4 , mineral has been synthesized in laboratory as pure phase under mild hydrothermal conditions. The decomposition process of the hydroxiarsenate compound is strongly dependent on the atmospheric conditions. The results of the thermal treatment in air or argon are quite different.…
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
The objective of this study was to evaluate the relationship between clay mineralogy, specific surface area (SSA) and micromorphology in polygenetic Konza soil series. Physical, chemical and mineralogical analyses were performed on disturbed soil samples, and micromorphological investigations of selected horizons were…
The electron-stimulated luminescence (ESL) from amorphous solid water and crystalline ice films deposited on Pt(111) at 100 K is investigated as a function of the film thickness, incident electron energy (5-1000 eV), isotopic composition, and film structure. The ESL emission spectrum has a characteristic double-peaked…