Materials Literature
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Hard-particle packings have served as useful starting points to study the structure of diverse systems such as liquids, living cells, granular media, glasses, and amorphous solids. Howard Reiss has played a major role in helping to illuminate our understanding of hard-particle systems, which still offer scientists man…
[reaction--see text] For the gold-catalyzed phenol synthesis an intramolecular migration of the oxygen atom was proven. Several other late transition metals with d(8) configuration allow this conversion, providing evidence for Au(III) being a catalytically active species. On the other hand gold was still the most acti…
The two title trialkaline trioxoantimonates(III), tripotassium trioxoantimonate(III), K(3)[SbO(3)], (I), and tricaesium trioxoantimonate(III), Cs(3)[SbO(3)], (II), crystallize in the cubic Na(3)[AsS(3)] structure type in space group P2(1)3. The structures show discrete Psi-tetrahedral [SbO(3)](3-) anions with C(3v) po…
In the glass industry, the lifetime of many metallic parts in contact with molten glass is controlled mainly by high temperature corrosion which, as for aqueous solutions is governed by oxidation-reduction reactions: reduction of glass components counterbalances the oxidation of metallic components. Depending on the g…
We present the results of a series of model Monte Carlo calculations of the scattering of spin-polarized electrons from gold foil targets. Our calculations examine the behavior of the left-right scattering asymmetry A as a function of various parameters conventionally used in extrapolation of the left-right asymmetry…
An adhesive bonding process is presented that utilizes sub-micrometer thick bondlines of all-aromatic thermosetting copolyesters (ATSP) for the assembly of polyimide membranes in silicon-based sensors and actuators. Due to the unique ability of ATSP to form void-free self-adhesive bonds through solid-state interchain…
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Low-dimensional iron chalcogenide Fe 7 S 8 and FeSe 2 microcrystals and FeTe 2 bulk single crystals were synthesized via the reactions of FeCl 3 with S or Se or Te powders in hydrazine hydrate solution (85%, v/v) at 140 °C for 36 h. The products were characterized by means of X-ray powder diffraction, rocking curve, t…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTInteractions in Miscible Blends of Poly(styrene-co-methacrylic acid) with Copolymers Containing Vinylpyrrolidone and Vinylpyridine GroupsHeidi R. Motzer, Paul C. Painter, and Michael M. ColemanView Author Information Department of Materials Science and Engineering, Pennsylvania…
The oxidation of SiC-fiber-reinforced SiC composites at high temperature (1200°C) and elevated total water vapor pressures (up to 1.5 atm) was studied. Substantial degradation of SiC composites was observed under these exposure conditions, particularly when BN (used as a fiber coating) was a composite constituent. Bes…
ADVERTISEMENT RETURN TO ISSUEPREVNoteSynthesis of Amphiphilic Poly(ε-caprolactone) Macromonomers by Lipase CatalysisArmando CórdovaView Author Information STFI, Swedish Pulp and Paper Research Institute, P.O. Box 5604, SE−114 86 Stockholm, Sweden Cite this: Biomacromolecules 2001, 2, 4, 1347–1351Publication Date (Web)…
This study aims to precise and to quantify the link between the development of the metal/oxide roughness, the localization of cracks in the oxide layer, and the transition in Zircaloy-4 and Zr-1Nb-O corrosion kinetics. The morphological characteristics of oxide scales formed in autoclave and thermobalance at 415°C wer…
We demonstrate a use of self-assembled monolayer (SAM) as a template to deposit in-situ Si nanoparticles fabricated by laser ablation. Scanning tunneling microscopy, atomic force microscopy observations, and photoluminescence measurements show that the Si nanoparticles deposited in situ on SAMs are round shaped, firml…
A number of new aryl phosphorus-containing polymers were found to be miscible with the commercially significant bisphenol A-based poly(hydroxy ether)s (PHE) over the entire composition range by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) measurements of the blends. Both the FTIR and C…
The alkali-doped electrosodalites form a unique class of magnetic materials where the magnetism comes from nonatom centered unpaired F-center electrons found inside body-centered cubic arrangements of alkali ion clusters supported by sodalite host lattices. In the present work the crystal structure of potassium-electr…
The layered silicic acid H-magadiite and the corresponding Na + salt have been investigated by a combination of three spectroscopies: 29 Si nuclear magnetic resonance, infrared absorption, and Raman scattering. When sodium ions are exchanged with protons, the resulting H-magadiite does not swell any more and displays…
Hydrophobically surface-modified membranes were prepared by adding a fluorine-containing graft copolymer into a microphase-separated membrane consisting of poly(dimethylsiloxane) (PDMS) and poly(methyl methacrylate) (PMMA). This study focuses on the effects of surface characteristics and microphase separation of the s…
The condensation of sodium 2,6-diformyl-4-X-phenolate (X = Cl, CH3) with the reduced 1 ∶ 1 Schiff base of 2,2′,2″-tris(aminoethyl)amine (tren) and 2-formylfuran (or benzaldehyde) followed by in situ transmetallation with copper(II) perchlorate results in the production of four novel tetranuclear copper(II) complexes o…
Adsorption of collagen on polystyrene (PS) and plasma-oxidized PS (PSox) was investigated using atomic force microscopy (AFM) as the main tool. The extent of alteration produced by the AFM tip upon scanning at controlled loading forces in water was used to obtain semiquantitative information on the properties of the i…
With XRD, FTIR, CHN, ICP, and DTA/TGA techniques, ionic interactions in the forms of cation replacement/incorporation in basal layers and anion exchange/insertion in the interlayer space have been investigated. The crystallite size is increased significantly, whereas basal spacing is reduced when Co 2+ cations or both…