Solid State Physics: Advances in Research and Applications
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Materials Literature
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Liquid-crystalline structures in solutions of a polypeptide
BY CONMARROBINSON BY CONMARROBINSON Research Laboratory, CourtauIds Ltd., Maidenhead, Berks Receired 29th June, 1955 The birefringent solutions of poly-y-benzyl-L-glutamatein several solvents have been studied. These show parallel equidistant lines which are visible even in natural light. The periodic
Variantes en la prefabricación de pasta cerámicas
Ventajas del método de prensado en seco en la industria cerámica. Consideraciones sobre la cocción a temperatura baja.
Empleo de ladrillos refractarios aislantes en los hormigones cerámicos intermitentes
Interés del empleo de ladrillos refractarios aislantes en la construcción, de hornos cerámicos con el f in de tener una mayor economía de combustible, un aumento de la producción, mejor calidad de las piezas y reducción en el coste de construcción.
Placas coloreadas de fibrocemento
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Burning cement in air-suspension
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Empleo de flutox para la protección de hormigón
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New lime kiln safety device
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Construcción y reparación de hornos rotatorios
El empleo de la soldadura facilita la reparación de los hornos rotatorios, acortando el tiempo necesario para dicha operación. Se presentan diversos ejemplos prácticos.
Recomendaciones prácticas para los ensayos de cemento
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Ensayo para la determinación indirecta de la resistencia a la tracción sus aplicaciones
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Moldes de aluminio para las probetas cúbicas de hormigón
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Bloques Wilson
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Importancia del momento en que se realiza el curado del hormigón
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Lattice energy of ionic crystals
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Oxidation of Alloys Involving Noble Metals
Diffusion processes during the oxidation of alloys involving noble metals are analyzed theoretically. An oxide film of uniform thickness is stable only if diffusion in the alloy is relatively rapid compared with diffusion in the oxide of the less noble metal. Otherwise, there is the tendency to form a rugged alloy‐oxi…
Dynamic Method for Measuring the Pyroelectric Effect with Special Reference to Barium Titanate
A dynamic method has been developed for the study of the pyroelectric effect. Transient currents produced in single crystals of barium titanate when subjected to flashes of light are shown to be pyroelectric in origin. The illumination results in a small change in the temperature of the crystal which, in turn, causes…
Dielectric Behavior and Structure
Abstract not Available.
III. Dislocation densities in some annealed and cold-worked metals from measurements on the X-ray debye-scherrer spectrum
Two basic equations are derived for deducing the dislocation density in powdered materials from the particle size and strain breadth measured from the Debye-Schemer spectrum. In the particle size estimate, it is assumed that the material has a block structure similar to that found in microbeam studies and that the dis…
Field Emission Microscopy of an Allotropic Transformation:α−βTitanium
The field emission microscope has been applied to a study of the allotropic transformation in single microcrystals of titanium. Patterns with symmetry characteristic of the high and low temperature phases are presented. Techniques for analyzing the patterns are outlined. Data derived from the pattern analyses give an…