Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Neutron Reflectivity Investigation of Surface and Interface Segregation of Polymer Functional End GroupsJ. F. Elman, B. D. Johs, T. E. Long, and J. T. KobersteinCite this: Macromolecules 1994, 27, 19, 5341–5349Publication Date (Print):September 1, 1994Publication History P…
Similarities of large electromechanical coupling factors ( k s ) in perovskite binary material systems were studied. Five large- k s material systems, PZT 53/47, PZNT 91/9, PMNT 67/33, PSTT 55/45 and PSNT 57/43, were compared. These five large-ks material systems were found to show four similarities: rhombohedral and…
A system of averaged equations describing the motion of a mixture of spherical compressible bubbles in an inviscid liquid is derived by the ensemble-averaging method introduced in an earlier paper [Zhang and Prosperetti, J. Fluid Mech. 267, 185 (1994)]. The averaging procedure introduces new terms in the equations, am…
In doped Mott-Hubbard insulators, the electron-phonon interaction and strong Coulomb repulsion can reinforce each other to stabilize small polarons, domain walls, and charge-density waves. We discuss how the electron-phonon coupling stabilizes domain-wall states in an antiferromagnetic spin background for small doping…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDendrimers as Building Blocks for Multilayer ConstructionShinji Watanabe and Steven L. RegenCite this: J. Am. Chem. Soc. 1994, 116, 19, 8855–8856Publication Date (Print):September 1, 1994Publication History Published online1 May 2002Published inissue 1 September 1994https://…
A picosecond pump-probe technique is used to measure the room-temperature thermal conductivity κ and longitudinal sound velocity cl of amorphous diamond (a-D) and diamondlike carbon (DLC) thin films. Both κ and cl were found to decrease with film hydrogen content. Depending on the film deposition technique, κ is in th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrothermal Synthesis and Dielectric Properties of Tetragonal BaTiO3Prabir K. Dutta, Reza Asiaie, Sheikh A. Akbar, and Weidong ZhuCite this: Chem. Mater. 1994, 6, 9, 1542–1548Publication Date (Print):September 1, 1994Publication History Published online1 May 2002Published i…
Numerical hydrodynamic simulations of the growth and collapse of a 10 μm air bubble in water were performed. Both the air and the water are treated as compressible fluids. The calculations show that the collapse is nearly isentropic until the final 10 ns, after which a strong spherically converging shock wave evolves…
Ion-assisted pulsed laser deposition has been used to produce films containing ≳85% sp3-bonded cubic boron nitride (c-BN). By ablating from a target of hexagonal boron nitride (h-BN), BN films have been deposited on heated (50–800 °C) Si(100) surfaces. The growing films are irradiated with ions from a broad beam ion s…
Translational and rotational diffusion rates in low-molecular-weight liquids tend to conform well to the predictions of the classic Stokes-Einstein-Debye model if temperature T is not too low. Specifically, the diffusion constants ${\mathit{D}}_{\mathrm{trans}}$ and ${\mathit{D}}_{\mathrm{rot}}$ are proportional to T/…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhase Behavior of Poly(propylene oxide)-Poly(ethylene oxide)-Poly(propylene oxide) Triblock Copolymer Melt and Aqueous SolutionsKell Mortensen, Wyn Brown, and Erling JoergensenCite this: Macromolecules 1994, 27, 20, 5654–5666Publication Date (Print):September 1, 1994Publicat…
By A. Dembo and O. Zeitouni: 344 pp., £40.00, ISBN 0 86720 291 2 (Jones and Bartlett, 1993).
FSSP (families of structurally similar proteins) is a database of structural alignments of proteins in the Protein Data Bank (PDB). The database currently contains an extended structural family for each of 330 representative protein chains. Each data set contains structural alignments of one search structure with all…
The results of dynamic mechanical testing of five industrially produced partially oriented yams (POY) and two conventionally spun and drawn PA 6.6 filament yams are presented, along with some of their structural parameters. Dynamic mechanical spectra of POY samples differ from conventionally spun and drawn yams across…
The selection of component materials is the first step in order to reach a good quality concrete. The Spanish Code EH-91 point out the different requisites for the component materials used in a normal concrete. However, these requisites may be not sufficient for a high strength concrete (HSC). In this paper we present…