Materials Literature
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Article Carbon Black-Filled Conductive Polymers of Polypropylene, Ethylene Vinyl Acetate Copolymer, and Their Ternary Blends was published on May 1, 2000 in the journal Journal of Polymer Engineering (volume 20, issue 3).
Abstract Photoalignment technique has been applied for fabricating a zig‐zag defect‐free FLCD by using polyimide RN‐1199, −1286, −1266 (Nissan Chem. Ind.) and adopting oblique irradiation of unpolarized UV light. It is shown that among them RN‐1199 is the best for fabricating defect‐free cell, but RN‐1286 needs a low…
Slow straining of smooth tensile specimens of heat treated duplex stainless steel from a fabricated pipe has been used to assess susceptibility to embrittlement by hydrogen. The effect of the proportions of ferrite and austenite in the microstructure, produced by quenching after solution treatment at temperatures betw…
The concentration of charge carriers and their Hall mobility in Si:Er/Si layers grown by sublimational molecular-beam epitaxy were investigated as functions of temperature in the range of 300–77 K. No electric activity of Er-containing luminescent centers was observed. The feasibility of precise control over impurity…
A series of new poly(imide-hydrazide)s and poly(amide-imide-hydrazide)s were obtained by the direct polycondensation of N-[p-(or m-)carboxyphenyl]trimellitimide (p- or m-CPTMI) with terephthalic dihydrazide (TPH), isophthalic dihydrazide (IPH), and p-aminobenzhydrazide (p-ABH) by means of diphenyl phosphite and pyridi…
La–Zn substituted Sr-ferrite thin films were prepared by rf diode sputtering. The magnetic and crystallographic properties of the films were investigated by vibrating sample magnetometry and x-ray diffractometry. It is found that the texture of the films sensitively depends on the amount of substitution. Both the satu…
A study of the effects of microstructural changes on domain structure and magnetic properties as a result of fatigue has been made on Fe–C alloys subjected to either cold work, stress-relief annealing, or heat treatment that produced a ferritic/pearlitic structure. The magnetic properties varied with stress cycling de…
5,12-Dioxocyclams and bis-dioxocyclams were capped across the 1,8-secondary amino groups with 2,6-bis(bromomethyl)pyridine to give pyridine-capped mono- and bis-dioxocyclams. The copper(II) complex of capped monocyclam 5b was prepared and characterized by X-ray crystallography. Treatment of dioxocyclams with 2,3,5,6-t…
Abstract Porphyrin‐porphyrin and porphyrin‐chlorin dimers have been synthesized and evaluated for their photo‐physical and in vivo photodynamic therapy properties. Two of them can become potential new photosensitizers. Study of the reactivity of meso ‐tetraaryl porphyrins, as dienophiles, in Diels‐Alder transformation…
SmCo films with a Cr underlayer have been investigated as potentially attractive candidates for high density recording media. Magnetron sputtering was used here to produce Cr/SmCox/Cr films on Si (100) substrates. The magnetic films were deposited at a substrate temperature of 350 °C and an Ar pressure of 5 mTorr. Cr…
Novel long-chain acrylate based copolymers containing triphenylene groups have been synthesized which will open up new opportunities to synthesize discotic networks with columnar structure. This structure exists in the copolymer even when a non-discotic comonomer is introduced up to 75 mol-%. The cross-linking of the…
Very often outerwear apparel is made of water resistant yet breathable fabrics, and normally these fabrics have multilayer structures of various polymeric materials. The working mechanisms of water vapor transmission through these fabrics are not well understood. The rate at which these breathable fabrics are able to…
The kinetics of enthalpy relaxation (recovery) at the glass transition in x K 2 O·(20− x )MgO·80TeO 2 glasses has been examined from heat capacity measurements using differential scanning calorimetry to clarify the features of the structural relaxation in ternary TeO 2 ‐based glasses. Ternary glasses such as 10K 2 O·1…
Nanoemulsion polytetrafluoroethylene (nano-PTFE) is a promising low-dielectric-constant polymer, which can be prepared in thin-film form by spin-on techniques. Similarities and differences of the nano-PTFE material to the well-known class of PTFE polymers with respect to morphology and dielectric and electret characte…
A new, more accurate formula describing double and multiple-shell axial magnetic shielding is obtained as a result of numerical verification of existing estimations. A standard ANSYS® software package was used. Parameters of the numerical model are as follows. Two concentric, closed cylinders of equal thickness and co…
Metal–ceramic composite pipes were prepared through simultaneous extrusion of different pastes by a multi‐billet extrusion method. ZrO 2 and stainless steel powders were chosen, and an aqueous solution of water‐soluble polymer, hydroxypropyl methylcellulose (HPMC), was used as binder. The maximum extrusion pressure an…
In the present work the results of a study concerning the surface properties of coating materials obtained from fluorinated latices are reported. Better understanding is required regarding the influence of polymer structure, latex composition, and morphology on the surface properties of the resulting films. For this p…
The letter describes an approach to a representation of transient behavior due to switching off complex nonlinear circuits. For this purpose the widely known Jiles model (JM) was implemented into the Alternative-Transient-Program (ATP). Calculations have been made on simplified transformer single-phase and three-phase…
The tricatenar, hydrogen-bonded complexes formed between alkoxystilbazoles and an imine were found to be mesomorphic. Subsequently, related tetracatenar complexes were also investigated and found to be non-mesomorphic. We report the transition temperatures of these complexes and discuss structural modifications.
MnBi crystallizes in a NiAs-type hexagonal crystal structure, exhibits a high uniaxial anisotropy, and is potentially useful as a permanent magnet material. We have examined the effect of partial substitution of Bi with rare earth elements on the magnetic properties of MnBi. MnBi1−xRx (R=Nd, Dy) were prepared by mecha…