Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Creases are marks that are created and left in a fabric during garment wear. Pressing is a process to flatten garment panels and sharpen garment edges and pleats. To minimize crease, the fabric should recover after pressing without creating a creased edge. Whereas, good pressing performance means the creased edge stay…
The Stokes shift between the 2F5/2 → 5d absorption and the 5d → 2F5/2 emission of Ce3+ is known for at least 230 different inorganic compounds. Compounds with an anion coordination polyhedron around the Ce3+ ion either in the form of a tri-capped trigonal prism, Edshammer polyhedron or in the form of a (anti)-cuboctah…
Slowly cooled Nd 1 − x Ba x CoO 3 − δ samples were two-phase in the concentration interval 0.3 ≤ x ≤ 0.46. One of the phases had O -orthorhombic lattice distortions ( Pbnm ) characteristic of ferromagnetic samples with x ≤ 0.3, and the other phase had tetragonal distortions ( P 4/ mmm ) characteristic of samples with…
Using measurements of reflectance, transmittance, and the ellipsometric parameter D, we have determined the thickness, refractive index, and the absorption coefficient of various thin films and thin-film stacks. (D, the relative phase between the p- and s-polarized components, is measured for both reflected and transm…
The synthesis of a series of banana-shaped mesogenic structures has been carried out, in which the bend unit is formed by the 3,6-substitution of carbazole by 4-alkoxyphenyl moieties. The crystal structures of the methoxy and propyloxy derivatives are reported with an analysis of the N-H…π interactions that are observ…
The electrical conduction properties of dense BaCe0.9Mn0.1O3-delta (BCM10) membrane were investigated in the temperature range of 600-900 degreesC. High ionic and electronic conductivities at elevated temperatures make BCM10 a potential ceramic material for hydrogen separation. Hydrogen permeation through BCM10 membra…
A (21)-clinopyribole with the composition K 1.10 Na 2.32 Ca 1.52 Mg 5.85 Al 1.23 Si 12.04 O 34 (OH) 2 has been synthesized at 10 GPa and 1250 °C in a multi-anvil apparatus. The unit-cell parameters are a = 9.8390(9), b = 26.6471(6), c = 5.2665(5) Å, β = 106.25(5)°, and V = 1325.6(4) Å 3 . The structure (space group A…
Technology Update - No abstract available.
New experimental information was added to previous assessment data, and optimisation was carried out for the liquid and both fcc phases. Phase‐diagram calculations resulted in new invariant reaction parameters and coordinates of phase boundaries. They were compared to results of previous evaluations and to experimenta…
A new ray-based method is extended to include the modeling of optical interfaces. The essential idea is that the wave field and its derivatives are always expressed as a superposition of ray contributions of flexible width. Interfaces can be analyzed in this way by introducing a family of surfaces that smoothly connec…
Abstract A bis(ether amine) III‐A containing a cyclohexane cardo group, 1,1‐bis[4‐(4‐aminophenoxy)phenyl]cyclohexane, was synthesized and used as a monomer to prepare polyimides VI‐A with six commercial dianhydrides via three different procedures. The intermediate poly(amic acid)s had inherent viscosities of 0.83–1.69…
Three series of fluorinated bistolane-type liquid crystals have been synthesized. Their mesomorphic properties were studied by optical polarizing microscopy and DSC. These compounds exhibit only a broad nematic phase with high clearing points, wide phase transition temperatures and low melting points. The effects of l…
A new technique called dynamic measurement access (DMA) is presented in this article which was developed for relatively easy, fast, and accurate thermal conductivity measurements. Utilizing a commercial cryocooler adapted for this experiment, the DMA technique allows the measurement of typically 400 data points in a t…
In this paper we want to report the results obtained in our study of the cold-crystallization kinetics of PPS samples quenched from the melt state and analyzed in the crystallization temperature range 90–112°C. Such a wide range was explored by employing three different experimental techniques: the first one was the u…
An electrodynamic model that describes the dispersion of magnetostatic surface waves in ferrite/superconductor structures is suggested. On its basis, a new approach to determining the microwave sheet resistance R S of superconducting films in a magnetic field is elaborated. The values calculated (R S =0.20–0.96 mΩ) ag…
This paper uses the classical theories of liquid crystal physics to formulate the Young-Laplace equation of capillary hydrostatics for interfaces between viscous isotropic (I) fluids and nematic liquid crystals (NLC's). The equation provides an expression of pressure jumps across interfaces and determines the geometry…
To analyze the wire-wrapped fast breeder reactor (FBR) fuel pin bundle deformation under bundle-duct interaction (BDI) conditions, the Japan Nuclear Cycle Development Institute has developed the BAMBOO computer code. A three-dimensional beam element model is used in this code to calculate fuel pin bowing and cladding…
Liquid-crystalline 2,5-diarylethynyl-4-methylthiazole derivatives with bent-rod structures were prepared by a palladium-catalyzed cross-coupling reaction. The 2,5-diarylethynyl-4-methylthiazole derivatives prepared in the present study exhibit only the nematic phase.
The capillary force, arising from the curvature of the liquid meniscus between neighbouring particles in liquid phase sintering, provides a sintering driving force. The capillary force is orientated isotropically and provides a compressive stress normal to the neck section between neighbouring solid particles. During…
So far, magnetic polarons in antiferromagnetic semiconductors (ferrons) were assumed to arise due to the charge carrier self-trapping by a ferromagnetic or canted antiferromagnetic region. If the ferron size is not very large, they should have much more complicated structure: the magnetically deformed region consists…