Materials Literature
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Abstract Glasses from (GeSe 5 ) 1− x Ga x and (GeSe 4 ) 1− x Ga x ( x = 5, 10, 15, 20 at.%) systems have been investigated. X‐ray diffraction and IR scattering measurements have been carried out in order to elucidate the structure of the glasses. From the x‐ray diffraction data radial distribution functions (RDF) have…
We have measured structural, magnetic and, magneto transport properties of heterostructures consisting of La1–xCaxMnO3 ferromagnetic (FM) layers (x = 0.33) and antiferromagnetic (AF) layers (x = 0.67). FM/AF superlattices were grown by a high-pressure sputtering technique on (001) oriented SrTiO3 substrates. We have s…
Case-based reasoning (CBR) is an advanced reasoning technique simulating how hu mans routinely solve problems. There are several steps in CBR: presentation of a new problem, retrieval of the most similar cases from the database of cases, adaptation of the most similar old solutions, validation of the current solution,…
The overall goal of this research was to develop a single treatment process that will economically treat wastewater generated during chemical-mechanical planarization (CMP) processing of integrated circuits. Present treatment technologies require multiple steps, are expensive, and generate secondary waste streams requ…
Two commercially available amine-cured epoxy resin formulations were studied under different environmental conditions with regard to the surface tension evolution using axisymmetric drop shape analysis (ADSA). By employing a new strategy, ADSA was used to monitor simultaneously the surface tension and the density of t…
Summary The hydration number of lanthanides, Ln(III) (Ln = Sm, Eu, Tb, Dy), and Cm(III) in the extracted complexes with purified Cyanex301, Cyanex302 and Cyanex272 was investigated using time-resolved laser-induced fluorescence spectroscopy (TRLFS) and FT-IR spectroscopy. The results, in conjunction with the previous…
Study of the morphology, aggregation structure and properties of Bombyx mori silk treated by low temperature oxygen plasma showed that slight flutes appeared on the surface of Bombyx mori silk fiber and that its surface structure changed after plasma treatment. The conformation also changed and crystalline degree decr…
Abstract The tetrakis(phenyl isocyanide)nickel(0) complexes [Ni(CNR) 4 ](R = C 6 H 5 , 1; R= C 6 H 3 -2,6-Me 2 , 2; R = C 6 H 4 -2-NO 2 , 3) have been synthesized from [Ni(COD) 2 ] and the corresponding phenyl isocyanides in toluene. Complexes 1 - 3 were characterized by X-ray diffraction. All three complexes contain…
This is the second of a two-part series on the chemical, morphological and electrical changes of the polydimethylsiloxane (PDMS) and alumina trihydrate (ATH) material system subjected to dry-band discharges. The PDMS/ATH system allowed track formation (tracking) leading to dielectric breakdown in the IEC 60587 interna…
Various optical elements with subwavelength structures are currently being developed. Because phase plates require a deep grating structure in which the line width is narrow and the aspect ratio is high, it has been difficult to develop half-wave plates. We have designed and developed λ/2 plates, and evaluated their o…
Abstract The initial oxidation of polycrystalline zirconium has been investigated with XPS and in situ spectroscopic ellipsometry. Oxidations were performed at room temperature at partial oxygen pressures ( p O 2 ) of 1.3 × 10 −7 , 1.3 × 10 −6 and 1.3 × 10 −5 Pa. Analysis of the measured Zr 3d XPS spectra revealed the…
Nanosized NiFe 2 O 4 powders were prepared by a novel sol-gel route. The powders calcined at 1200°C and quenched to liquid nitrogen temperature showed a mixed spinel phase, with a saturation magnetization of 49 emu/g, crystallite size of 67 nm and hyperfine magnetic field B 1 = 520 kOe, B 2 = 484 kOe and A = 488 kOe.
Calcium catapleiite, CaZrSi3O9•2H2O, the calcium-dominant analogue of catapleiite, Na2ZrSi3O9•2H2O, firstly described as hexagonal, space group P63/mmc, with a 7.32, c 10.15 Å, is actually orthorhombic, space group Pbnn, a 7.378(1), b 12.779(1), c 10.096(1) Å, V 951.89 Å3 and Z = 4. The crystals display three-fold…
In this paper, the detection of type I collagen degradation during the softening phenomenon of yellowtail muscle, was examined. Acid soluble collagen was isolated from dorsal ordinary muscle at death and after 24-h chilled storage. In the abundant ratio of subunit components, an increase in β12 chain (5.4 points) and…
The effect of the amount of boron doping in the range of 0 to 1.0 wt% on the high‐temperature deformation of fine‐grained β‐silicon carbide (SiC) was investigated by compression testing. Flow stress at the same grain size increased as the amount of boron doping decreased. The stress exponent increased from 1.3 to 3.4…
We have investigated the dynamics of amorphization induced in phase-change optical recording media by focused laser pulses of subnanosecond duration. We initiated localized amorphism by using a focused laser beam to melt the phase-change material and completed the change by rapid cooling by means of thermal diffusion.…
The stress required for complete constrained sintering of a low‐temperature cofirable ceramic‐filled glass composite, i.e., borosilicate glass + alumina, has been investigated under uniaxial constant and cyclic loading. The required uniaxial stress to have complete constrained sintering, i.e., zero strain or strain ra…
Thermal decomposition of aluminum isopropoxide in toluene at 315°C resulted in χ‐alumina that had high thermal stability, whereas the reaction at lower temperatures resulted in formation of an amorphous product. The χ‐alumina thus obtained directly transformed to α‐alumina at ∼1150°C, bypassing the other transition al…
Abstract By means of transmission electron microscopy (TEM) and uniaxial tensile testing, the connection between the morphology and the micromechanical properties of selected styrene‐rich styrene/butadiene block copolymers was studied with respect to their molecular architecture. In particular, the structure‐property…
Abstract Wir haben die Kristallstrukturen der Kaliumtetracyanoplatinate und ‐palladate sowie deren Monohydrate mittels Röntgen‐Pulverdiffraktometrie und Einkristallstrukturanalyse bestimmt. K 2 [Pt(CN) 4 ]: orthorhombisch, Pccn , a = 1370.11(2), b = 907.09(1), c = 703.91(2) pm, Z = 4, R F 2 = 0.0903 (N( hkl ) = 415).…