Materials Literature
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Abstract The development of composites consisting of wood fibers and recycled plastics offers not only an opportunity to utilize an abundant natural resource but also a means to alleviate the serious plastics disposal problem. In this work, aspen fibers are incorporated into recycled high density polyethylene with a c…
Foreword. List of abbreviations. Introduction. Reactor materials and fission products. Data assessment. Construction of the tables. Fundamental constants. Nomenclature and symbols. References. Americium. Barium. Boron. Caesium. Europium. Hydrogen. Iodine. Krypton. Lanthanum. Molybdenum. Neodymium. Oxygen. Palladium. P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn attractive cis-effect of hydride on neighbor ligands: experimental and theoretical studies on the structure and intramolecular rearrangements of Fe(H)2(.eta.2-H2)(PEtPh2)3Lori S. Van der Sluys, Juergen Eckert, Odile Eisenstein, John H. Hall, John C. Huffman, Sarah A. Jack…
Piezoelectric properties of bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT)-based solid solution, (Bi1/2Na1/2)(1−x)(St a Pb b Ca c ) x TiO3(a+b+c=1)(BNTX [100x−100a/100b/100c]), are studied as a new substrate material group of lead- free or low lead content piezoelectric ceramics. A rhombohedral (Fα)-tetragonal (Fβ) m…
The mechanism by which alcohol washing of ceramic powders produces “soft” agglomerates has been investigated by studying the interaction of ethanol with hydrous ZrO 2 powders using Fourier transform infrared (FTIR) spectroscopy. Unambiguous evidence of ethoxide formation has been found, which apparently prevents bond…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew route to layered double hydroxides intercalated by organic anions: precursors to polyoxometalate-pillared derivativesEmmanuel D. Dimotakis and Thomas J. PinnavaiaCite this: Inorg. Chem. 1990, 29, 13, 2393–2394Publication Date (Print):June 1, 1990Publication History Publi…
We studied the optical transient bleaching of ∼40 Å, ammonia-passivated CdS clusters in a polymer with nanosecond and picosecond pump-probe techniques. The transient bleaching spectra behave differently in different time regimes. Within the 30-ps pump laser pulse width, we tentatively attribute the bleaching to the ex…
Several lithotypes used in diverse Andalusian monuments have undergone laboratory experiments of salt crystallization and within controlled environments. The indicators of deterioration that appear are justified from the point of view of the type of experiment and the lithotype, and compared with those found in the mo…
Samples of asbestos-cement pipe used for drinking water conveyance, were submerged in distilled water, and subjected to two controlled erosive treatments, namely agitation (300 rpm for 60 min) and ultrasound (47 kHz for 30 min). SEM was used to observe and compare the morphology of the new pipe with and without erosiv…
This study presents the results of a series of concrete test pieces of three different mixtures: I/45A cement; Portland cement with additions; Portland with fly ash. All were subjected to six different types of curing, with the aim of studying the evolution of their compressive strengths in terms of the grade of "matu…
At the present paper, it shows how has been studied the influence over the quality of a special sort of gypsum, when it has been added as "additive" 0,96% of potasium chlorurus (Kcl), it has been observed the variation on the mechanical proprieties and also over the time of the beginning and end of the set. Also with…
We describe the development of the scanning photoemission spectromicroscope MAXIMUM at the Wisoncsin Synchrotron Radiation Center, which uses radiation from a 30-period undulator. The article includes a discussion of the first tests after the initial commissioning.
The range of materials and properties now at the disposal of design engineers is described. Current uses of permanent magnets are reviewed, with particular attention to engineering and economic aspects. The rapid broadening of magnet uses is now occurring as traditional devices are miniaturized, and new applications a…
Abstract In this review the physico‐chemical fundamentals of the atmospheric corrosion of iron are discussed, as they result from a number of electrochemical and spectroscopic techniques, which have been applied in order to analyze the corrosion mechanism of the atmospheric corrosion during wet‐dry‐wet transitions. —…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of orientation distribution and crystallinity on the measurement by x-ray diffraction of the crystal lattice moduli of cellulose I and IIMasaru Matsuo, Chie Sawatari, Yuki Iwai, and Fumihiko OzakiCite this: Macromolecules 1990, 23, 13, 3266–3275Publication Date (Print…
The corrosion of mild steel in sulfuric acid containing 4 × 10−4 M of either D-galactose thiosemicarbazone, 1 -phenyl thiosemicarbazide, or 4-phenyl thiosemicarbazide, has been studied over the temperature range 25 to 60°C by using alternating current (AC) impedance spectroscopy technique and measuring the capacitance…
The state of art is reviewed with an emphasis on recent research results and a view to identifying areas in which further developments in materials and processing might lead to even better properties and greater application of novel technology. Basis magnetic considerations are discussed, namely, B-H loop shape, core…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLong-lived nonmetallic silver clusters in aqueous solution: preparation and photolysisT. Linnert, P. Mulvaney, Arnim Henglein, and H. WellerCite this: J. Am. Chem. Soc. 1990, 112, 12, 4657–4664Publication Date (Print):June 1, 1990Publication History Published online1 May 200…