Materials Literature
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The authors developed an insulation diagnostic system that makes automatic measurements of the dielectric dissipation factor and DC component in a hot-line XLPE (cross-linked polyethylene) insulated power cable and makes an overall judgement of cable insulation deterioration. This system was tested on XLPE cables in h…
Magnetoelastic effects in the three-sublattice noncollinear antiferromagnet Mn3NiN are studied theoretically. Shear deformations are shown to give rise in the crystal to a piezomagnetic moment of an exchange nature. The magnitude of the piezomagnetic moment is comparable with the weak ferromagnet moment detected exper…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism and kinetics of curing of epoxides based on diglycidylamine with aromatic amines. 2. The reaction between diglycidylaniline and anilineLibor Matejka and Karel DusekCite this: Macromolecules 1989, 22, 7, 2911–2917Publication Date (Print):July 1, 1989Publication Hist…
A novel approach to determine whether ferroresonance can occur is developed. It is based on the energy transferred from the system to the voltage transformer during the switching transient. This approach is used to develop a practical test criterion to indicate if ferroresonance can occur at a specific station. The nu…
Abstract In these three decades of progress, thermoplastic elastomers have risen in 1987 to a position of tenth in the order of commercial thermoplastic sales in the U.S.A., with a growth rate, 1986–1987, of 9.7%. It is very probable that the quantity shown for 1987 sales, 441 million pounds, is low, since it is well…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelationship between craze microstructure and molecular entanglements in glassy polymers. 1Larry L. BergerCite this: Macromolecules 1989, 22, 7, 3162–3167Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Published inissue 1 July 1989https://p…
The milestones which have marked the development of today's liquid crystal display and liquid crystal material technologies are reviewed. The main emphasis is placed on the predominant nematic field effects and liquid crystals.
Platinum and platinum alloy films electrodeposited from conventional aqueous electrolytes find application for a wide range of uses. During deposition a variety of problems have to be overcome, necessitating optimisation of process conditions; in addition currently available platinum plating processes are not consider…
A study of effective atomic numbers for biological materials such as bone, muscle, spleen, liver, mucin, and water has been carried out in the energy region 1 to 50 MeV for photons, electrons, and He ions. It is noticed that the effective atomic number for photons and electrons increases with energy, and remains, more…
Tensile strengths of 2.0 to 5.0 mol% Y 2 O 3 ‐stabilized ZrO 2 polycrystals were described using the newly developed tensile testing method. The tensile test was conducted by attaching three strain gauges on both sides of a rectangular bar that was 10 mm by 1 mm by 200 mm. The tensile strength of tetragonal ZrO 2 poly…
Abstract An Aquic Fragiudalf developed from a fluvial terrace of Pleistocene age in northwestern Italy was investigated to determine the possible role of different compounds in fragipan bonding. Fragipan characteristics appeared only in yellow, goethite‐containing zones of the fragipan horizon but not in gray, essenti…
The corrosion inhibition of zinc in HCI solutions by several pyrazole derivatives-namely, 3(5) amino, 5(3) phenylpyrazole; 3(5) amino, 5(3) [4'-methylphenyl] pyrazole; 3(5) amino, 5(3) [4'-methoxyphenyl] pyrazole; and 3(5) amino, [4'-chlorophenyl] pyrazole-was studied by capacitance and polarization measurements. Thei…
A fast, accurate, inexpensive, and nondestructive method to determine the density of very porous ceramics has been found. This method is an extension of the water‐displacement technique with three weighings and the use of glycerol instead of water. For small (1.13 g), 29% porosity B 4 C pellets, the precision is 0.002…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsolation, structure, and magnetic properties of a novel mononuclear rhodium(II) complexK. R. Dunbar, S. C. Haefner, and L. E. PenceCite this: J. Am. Chem. Soc. 1989, 111, 14, 5504–5506Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Publish…
and refinement and anisotropic temperature factors, and Figures S1 andS2, showing ORTEP stereograms of the compound and its unit-cell contents (5 pages); Table SIII, listing observed and calculated structure factors (8 pages).
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA kinetic theory of stepwise crosslinking polymerization with substitution effectHenryk Galina and Adam SzustalewiczCite this: Macromolecules 1989, 22, 7, 3124–3129Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Published inissue 1 July 198…
The dynamics of the ring spinning process has been re-analyzed as a coupled set of subproblems; the solutions are obtained numerically. The analyses in Part I and II of this series deal with the case of an uncontrolled balloon. In Part I the effects of air drag as well as gravitational and Coriolis accelerations are i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe nitrogen atom transfer reactivity of nitridomanganese(V) porphyrins with chromium(III) porphyrinsLawrence A. Bottomley and Frank L. NeelyCite this: J. Am. Chem. Soc. 1989, 111, 15, 5955–5957Publication Date (Print):July 1, 1989Publication History Published online1 May 20…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and surface energy characteristics of a series of pseudo-perfluoroalkyl polysiloxanesMarca M. Doeff and Elek LindnerCite this: Macromolecules 1989, 22, 7, 2951–2957Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Published inissue…
The reaction of Pt(CN)2·xH2O with dppm [bis(diphenylphosphino)methane] in refluxing dimethylformamide (DMF) yielded Pt2(dppm)2(CN)4. The X-ray structure of this binuclear platinum(II) complex has been determined: Pt2(dppm)2(CN)4·2DMF, space group P21/n, Z = 2, a = 11.561 (1) Å, b = 17.475 (1) Å, c = 13.981 (5) Å, β =…