Materials Literature
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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…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Properties of Highly Fluorinated PolyimidesG. Hougham, G. Tesoro, and J. ShawCite this: Macromolecules 1994, 27, 13, 3642–3649Publication Date (Print):June 1, 1994Publication History Published online1 May 2002Published inissue 1 June 1994https://pubs.acs.org/do…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNovel Synthetic Routes to Carbon-Nitrogen Thin FilmsJ. Kouvetakis, Michael Todd, Barry Wilkens, Anil Bandari, and Nigel CaveCite this: Chem. Mater. 1994, 6, 6, 811–814Publication Date (Print):June 1, 1994Publication History Published online1 May 2002Published inissue 1 June…