Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTViscoelastic behavior, phase equilibria, and microdomain morphology in mixtures of a block copolymer and a homopolymerChang Dae Han, Deog Man Baek, Jinhwan Kim, Kohtaro Kimishima, and Takeji HashimotoCite this: Macromolecules 1992, 25, 12, 3052–3067Publication Date (Print):J…
The properties of amorphous BaTiO3 thin films deposited on Si substrates were studied as functions of annealing temperature. The film thickness decreased monotonically as the annealing temperature increased up to 600 °C. This reduction is believed to correlate with the densification process observed in the amorphous f…
The variation in the a cell edge unit cell, degree of inversion, O positional parameter and thermal parameters have been determined for samples annealed at temperatures between 800 and 1500°C by Rietveld refinement using X-ray powder diffraction data.
Abstract The lifetime of the electrochromism of the WO 3 –TiO 2 films prepared by vacuum evaporation is found to exceed that of WO 3 films by a factor of five. X‐ray diffraction has revealed that the crystal structure of WO 3 –TiO 2 films stays amorphous, while crystalline compounds are formed in amorphous WO 3 films…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthetic nickel-containing heterometal cubane-type clusters with NiFe3Q4 cores (Q = sulfur, selenium)Stefano Ciurli, Paul K. Ross, Michael J. Scott, Shi Bao Yu, and R. H. HolmCite this: J. Am. Chem. Soc. 1992, 114, 13, 5415–5423Publication Date (Print):June 1, 1992Publicati…
The distributions of many diatom taxa in the Pyrenean springs show remarkable affinities with other areas. Soft water springs have many species of boreoalpine distribution, while diatom communities inhabiting the calcareous springs possess noticeable similarities with temperate calcareous areas. Water mineral content…
On the basis of experimental results, a model describing the composition and the structure of water trees is derived. It is concluded that water trees are in fact salt trees, i.e., they consist of tracks of hydrophilic salt groups. These tracks most likely run through the amorphous phase of polyethylene. In water tree…
The diffusion-governed melting that occurs when a binary melt is placed in contact with a pure solid is described. It is shown that if the melt superheat is much greater than the solid supercooling, the melt composition at the interface equals that of the solid and so the solid will melt at a rate determined by the th…
In this study mixtures were prepared from solution using and three different precursors for , , and and tris (2, 4‐pentanedionate) Ru(III). Multi‐layer coatings were deposited by spin coating onto fused silica slides with and without an intermediate, 200 nm thick, vacuum deposited Ti film. Samples heat treated at 200,…
An electrical tree is grown in the region of a dielectric subjected to an intensified local electric field. It can be artificially generated in a specimen by using a needle-to-plane electrode configuration. It is characterized by an incubation period which usually tends to decrease with applied voltage. During this pe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew nickel(II)-copper(II) heterodinuclear complexes with hexa- and pentacoordinated nickel(II) ions. Magnetostructural correlationsAlbert Escuer, Ramon Vicente, Joan Ribas, Ramon Costa, and Xavier SolansCite this: Inorg. Chem. 1992, 31, 12, 2627–2633Publication Date (Print):…
A series of segmented polyurethanes (SPUs) with various polyol soft segments was prepared and their hydrolytic degradation and degradation due to lipid sorption was investigated. The hydrolytic degradation of the SPUs was investigated in a papain solution, where it was shown that the SPU based on poly(ethyleneoxide) (…
The method has been proposed for computing Fresnel-type multi-focal lenses on the basis of special-type phase nonlinearity. A multi-focal lens is represented as a mathematical superposition of a thin lens and nonlinearity distorted Fresnel lens. Selection of the nonlinearity type is reduced to the problem of the groov…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNovel multifunctional initiators for polymerization of 2-oxazolinesShiro Kobayashi, Hiroshi Uyama, Yutaka Narita, and Junichi IshiyamaCite this: Macromolecules 1992, 25, 12, 3232–3236Publication Date (Print):June 1, 1992Publication History Published online1 May 2002Published…
Formation of pits near inclusions on 304 stainless steel in (0.1 and 0.3 M ) and (0 and 2 m M ) solutions was investigated by a combination of surface analyses (Auger electron spectroscopy, scanning electron microscopy, and energy dispersive x‐ray analyses) and electrochemical methods. Microlithography techniques were…
The mechanical behavior of model two-dimensional materials is investigated by large-scale molecular-dynamics (MD) simulations on a massively parallel computer. Both a pair-potential and a model embedded-atom many-body potential are examined. A parallel MD algorithm is developed to exploit the architecture of the Conne…
Although deterioration of the magnetic characteristics of silicon steel due to shearing stress has been observed, the degree of deterioration has not previously been assessed quantitatively. With the recent development of a technique for measuring the microscopic distribution of flux density, the effects of stress on…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal decomposition of dilute aqueous formic acid solutionsAnne Belinda Bjerre and Emil SoerensenCite this: Ind. Eng. Chem. Res. 1992, 31, 6, 1574–1577Publication Date (Print):June 1, 1992Publication History Published online1 May 2002Published inissue 1 June 1992https://pu…
The thermal conductivity of thick-film diamond prepared by chemical vapor deposition (CVD) has been measured with heat flowing in a direction perpendicular to the plane of the film. A laser flash technique with fast infrared detection has been devised for measurement of thin samples with high conductivity. The conduct…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDegradation of nonalternating poly(ester amides)K. E. Gonsalves, X. Chen, and J. A. CameronCite this: Macromolecules 1992, 25, 12, 3309–3312Publication Date (Print):June 1, 1992Publication History Published online1 May 2002Published inissue 1 June 1992https://pubs.acs.org/do…