Materials Literature
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Abstract A novel patented process and several reactors have been developed for devulcanization of waste rubbers. The technology is based on the use of the high power ultrasonics. The ultrasonic waves of certain levels in the presence of pressure and heat rapidly break up the three-dimensional network in crosslinked ru…
In the study of the high‐temperature behavior of ceramic hydroxyapatite (HAp), it was found in relation to its ionic conduction properties that HAp underwent partial dehydration of its lattice hydroxide ions. Considering that HAp ceramics are sintered above 1200°C without destruction of the apatitic structure, the deh…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicrostructure Analysis of Poly(lactic acid) Obtained by Lithium tert-Butoxide as InitiatorJ. E. KasperczykCite this: Macromolecules 1995, 28, 11, 3937–3939Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://p…
The cation exchange capacity (CEC) at pH 7 was measured for samples of 347 A horizons and 696 B horizons of New Zealand soils. The mean CEC was 22.1 cmolc/kg for the A horizons and 15.2 cmolc/kg for the B horizons. Multiple regressions were carried out for CEC against organic carbon (C), clay content, and the content…
Four sets of ZnO-based ceramic varistors (reference samples-ZNR; doped with aluminium-AL; doped with silver-AG; doped with aluminium and silver-AA) have been prepared by the conventional mixed oxide route. The current-voltage (I-V) characteristics, determined at current densities up to 1 mA/cm2, yielded nonlinear coef…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Manganese-Containing Polyoxometalate, [WZnMnII2(ZnW9O34)2]12-, as a Remarkably Effective Catalyst for Hydrogen Peroxide Mediated OxidationsRonny Neumann and Mohammad GaraCite this: J. Am. Chem. Soc. 1995, 117, 18, 5066–5074Publication Date (Print):May 1, 1995Publication…
Rutherford backscattering spectrometry, thermogravimetric analysis, and high-resolution transmission electron microscopy were used to investigate the oxidation behavior of ultrafine grain aluminum powder. Fractional change in mass of Al powder samples were obtained as a function of temperature and exposure time for sa…
The effects of surface roughness on metastable pitting susceptibility of type 304 (UNS S30400) stainless steel (SS) in chloride (Cl–) solution and the transition to stable pitting corrosion were investigated. A smoother surface finish reduced the frequency of metastable pitting because the number of metastable pit sit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFemtosecond Investigation of Electron Trapping in Semiconductor NanoclustersDavid E. Skinner, D. Philip Colombo Jr., Joseph J. Cavaleri, and Robert M. BowmanCite this: J. Phys. Chem. 1995, 99, 20, 7853–7856Publication Date (Print):May 1, 1995Publication History Published onl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and Acid-Base Properties of a Protonated Titanate with the Lepidocrocite-like Layer StructureTakayoshi Sasaki, Mamoru Watanabe, Yuichi Michiue, Yu Komatsu, Fujio Izumi, and Satoshi TakenouchiCite this: Chem. Mater. 1995, 7, 5, 1001–1007Publication Date (Print):Ma…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation, Characterization, and Applications as Heavy Metals Sorbents of Covalently Grafted Thiol Functionalities on the Interlamellar Surface of MontmorilloniteLouis. Mercier and Christian. DetellierCite this: Environ. Sci. Technol. 1995, 29, 5, 1318–1323Publication Date…
A novel method of investigating the link between molecular features of polymer molecules and the rheological properties of dilute polymer solutions has been investigated. It applies the dissipative particle dynamics (DPD) computer simulation technique, which introduces a lattice‐gas automata time‐stepping procedure in…
Liquid movement in any porous medium is driven by capillary action, which is governed by the liquid's properties, liquid-medium surface interaction, and geometric configurations of the pore structure in the medium. Pore structures of media, partic ularly fibrous materials, are complex and difficult to quantify. This p…
A new class of corrosion inhibitors, namely, polyamino‐benzoquinone (PAQ) has been synthesized and its inhibiting action on the corrosion of mild steel in and has been investigated by various corrosion monitoring techniques. A preliminary screening of the inhibition efficiency of the polymer was carried out by self co…
Kenaf (Hibiscus cannabinus) is a fast growing annual growth plant that is harvested for its bast fibers. These fibers have excellent specific properties and have potential to be outstanding reinforcing fillers in plastics. In our experiments, the fibers and polypropylene (PP) were blended in a thermokinetic mixer and…
Abstract The paper critically reviews the state of the art on the oxidation of TiAl. At the beginning differences compared to the oxidation of conventional Fe, Ni and Co alloys are discussed. The Knowledge of the TiAlO phase diagram as a basis for an understanding of the processes occurring during oxidation is very…
Crystalline VO2.5 films were prepared by reactive dc magnetron sputtering followed by annealing posttreatment. Lithium was inserted electrochemically from an electrolyte so that LixVO2.5 (0<x<1.5) was formed. The evolution of the electromotive force (EMF) was recorded during Li intercalation. For lithiat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharacterization of Catalytic Surfaces by Isotopic-Transient Kinetics during Steady-State ReactionSchohn L. Shannon and James G. Goodwin Jr.Cite this: Chem. Rev. 1995, 95, 3, 677–695Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published i…
We discuss the possibility of an intermediate-spin ground state for a ${\mathit{d}}^{5}$ (${\mathit{d}}^{6}$) system. The intermediate-spin state is stabilized by the relative stability of the ligand hole state that it hybridizes with. Using atomic multiplet calculations we showed that an intermediate-spin ground stat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTModel Studies in Catalysis Using Surface Science ProbesD. Wayne GoodmanCite this: Chem. Rev. 1995, 95, 3, 523–536Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://pubs.acs.org/doi/10.1021/cr00035a004https://…