Materials Literature
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The growth of ${\mathrm{PbTiO}}_{3}$ films by a metalorganic chemical-vapor-deposition technique has resulted in three-dimensionally epitaxial heterostructures on various single-crystal substrates. These heterostructures consist of ${\mathrm{PbTiO}}_{3}$ films on the (001) surface of the single crystals: potassium tan…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of the Micelle Architecture of Polystyrene/Poly(4-vinylpyridine) Block Copolymers in Dilute SolutionMarkus Antonietti, Steffi Heinz, Manfred Schmidt, and Christine RosenauerCite this: Macromolecules 1994, 27, 12, 3276–3281Publication Date (Print):June 1, 1994Pu…
This work has demonstrated the great influence that the specific surface of a Portland cement has on its qualification as a high or low resistance to sulfate ion attack - SIA, by means of the accelerated method ASTM C 452. For that purpose two Portland cements have been tested by means of that method. A Portland cemen…
Stones placates present a wide of problems that result in the fall of plates. One of the causes is the lack of adherence stone-mortar. We considered a study to determine the adherence between several cement mortars (1:3, 1:5, 1:7, 1:9 and a especial mortar prepared with latex) and stones (white granite, pink granites,…
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The electrochemistry of polyaniline (PANi), which has been chemically synthesized and processed in a variety of ways into thin films, has been studied, and a comparison to those properties observed in thin electrochemically grown PANi films made. In this work, PANi via solution processing has been formed into thin fil…
Accelerated tests carried out in the laboratory allow us to study the crystalline material settled over the surface of the sandstones when in contact with watery solutions of different compositions. Sandstone specimens of three different textures were placed on trays containing watery solutions, putting one surface in…
In the original Peierls-Nabarro model the core structure of a dislocation is determined as the solution of an integrodifferential equation. This equation describes the balance between the forces resulting from the deformation of two elastic half-spaces and from a one-dimensional periodic lattice potential acting acros…
INTRODUCTION TO STRUCTURAL PROPERTIES OF COMPOSITE MATERIALS Fibers Matrix Materials Structural Features and Mechanical Properties of Composite Materials Elastic Properties of Composite Ply Elastic Properties of Angle-Ply Laminate EQUATIONS OF COMPOSITE STRUCTURE MECHANICS Equations of the Elasticity of Theory for an…
The infrared absorption spectra of a suite of twenty-one type Ib synthetic diamonds have been recorded, and the concentrations of nitrogen in the form of single substitutional N atoms in these specimens determined by electron spin resonance measurements. It is found that an absorption coefficient, at 1130 wave-numbers…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhenylacetylene Dendrimers by the Divergent, Convergent, and Double-Stage Convergent MethodsZhifu Xu, Michael Kahr, Kathleen L. Walker, Charles L. Wilkins, and Jeffrey S. MooreCite this: J. Am. Chem. Soc. 1994, 116, 11, 4537–4550Publication Date (Print):June 1, 1994Publicati…