Materials Literature
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Over the past seven years, many examples of periodic crystals closely related to quasicrystalline alloys have been discovered. These crystals have been termed approximants, since the arrangements of atoms within their unit cells closely approximate the local atomic structures in quasicrystals. This colloquium focuses…
PREFACE Electrochemical Engineering may be defined as understanding and development of practical materials and processes which involve electrochemical reactions The discipline includes electrochemical methods of synthesis, process recycling, energy conversion and materials protection. Moreover, its importance must gro…
Kinases that catalyze phosphorylation of sugars, called here sugar kinases, can be divided into at least three distinct nonhomologous families. The first is the hexokinase family, which contains many prokaryotic and eukaryotic sugar kinases with diverse specificities, including a new member, rhamnokinase from Salmonel…
This outstanding reference provides a comprehensive discussion of magnetoelasticity based on three accepted descriptions of magnetostriction: elastomagnetic matrices, a group symmetrical description, and a tensor formalism. It explores recent advances that rely mainly on Callen's work and emphasizes the influence of t…
Abstract We have made additional evaluations of the electron inelastic mean free paths (IMFPs) and of the predictive IMFP formula TPP‐2 presented in papers II and III of this series. Comparisons have been made with other formulae for the IMFPs and electron attenuation lengths (ALs). We find substantial differences bet…
The synthesis of dendritic polyether macromolecules based on a 3, 5-dihydroxybenzyl alcohol building block and having carboxylate groups as chain-ends is described. These novel macromolecules behave as unimolecular micelles and their ability to solvate hydrophobic molecules has been investigated by UV–VIS spectroscopy…
This text aims to bring together accepted concepts on the molecular structure, fine structure and morphology of cellulose, and to examine the interrelation between the structure and the accessibility of fibrous cellulose substrates.
Compositions of modern first-cycle sands derived from granitic and metamorphic terrains in the Spanish Central System have been analyzed in order to evaluate the contributions of different bedrock types. The results of this work indicate that sand composition normally does not permit quantitative statements concerning…
Microkinetic Analysis and Catalytic Reaction Synthesis Microkinetic Analysis The Supporting Role of Empirical Information Informative Experiments Ethylene Hydrogenation Catalyzed by Platinum Ammonia Synthesis Catalyzed by Iron Ethane Hydrogenolysis Catalyzed by Group VIII Metals Methane Oxidation Catalyzed by Molybden…
Described as THE classic text on magnetism, FERROMAGNETISM covers the basics of magnetics, as well as in-depth coverage of magnetic materials. IEEE Press has now brought this important cornerstone of magnetics research back into print. Recognized for its breadth of coverage, this book includes information on magnetic…
Magnesium alloys have high strength/weight ratios, but poor corrosion resistance affects the viability of increased magnesium usage in aerospace and other applications. This review approaches the problem of magnesium corrosion from the standpoint of corrosion science by discussing the thermodynamics, kinetics, and mic…
CdSe is used as a prototype to show the implications of valence-band degeneracy for the optical properties of strongly quantum-confined nanocrystals. Absorption spectra and photoluminescence spectra obtained under intermediate and strong pulsed excitation show the presence of new structures. The energy levels for the…
Silicon‐based ceramics and composites are prime candidates for heat engine and heat exchanger structural components. In such applications these materials are exposed to combustion gases and deposit‐forming corrodents. In this paper combustion environments are defined for various applications. These environments lead t…
ABSTRACT Glycerol improved film extensibility but reduced film puncture strength, elasticity, and water vapor barrier properties. The plasticizing effect of water was highly temperature dependent. During hydration of gluten film, a sharp decrease in puncture strength, elasticity, and an increase of extensibility and w…
An automated refinement procedure (ARP) for protein models is proposed, and its convergence properties discussed. It is comparable to the iterative least-squares minimization/difference Fourier synthesis approach for small molecules. ARP has been successfully applied to three proteins, and for two of them resulted in…
1 Introduction to Materials Science and Engineering 2 Atomic Structure and Bonding 3 Crystal and Amorphous Structures in Materials 4 Solidification, Crystalline Imperfections 5 Thermally Activated Processes and Diffusion in Solids 6 Mechanical Properties of Metals I 7 Mechanical Properties of Metals II 8 Phase Diagram…
Since the earliest systematic research during the 1960s, the field of materials surface modification by 'cold', low-pressure plasma treatment has undergone an enormous expansion. Much of this expansion has taken place in recent years, particularly in the surface modification of polymeric materials, for which there now…
The ion exchange reaction of interlayer Na+ ions of a layered polysilicate kanemite with alkyltrimetnylammonium ions, followed by calcination, gives highly ordered mesoporous materials with a hexagonal array of uniform channels.
Abstract In semiconductor particles of nanometer size, a gradual transition from solid‐state to molecular structure occurs as the particle size decreases. Consequently, a splitting of the energy bands into discrete, quantized levels occurs. Particles that exhibit these quantization effects are often called “Q‐particle…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganic photoconductive materials: recent trends and developmentsKock Yee. LawCite this: Chem. Rev. 1993, 93, 1, 449–486Publication Date (Print):January 1, 1993Publication History Published online1 May 2002Published inissue 1 January 1993https://pubs.acs.org/doi/10.1021/cr00…