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The European Council (informally EUCO) is a collegiate body ( directorial system) that defines the overall political direction and priorities of the European Union. The European Council is part of the executive of the European Union (EU), beside the European Commission. It is composed of the heads of state or of government of the EU member ...
A Co-alloy valve part from a producing oil well (30 mm diameter), coated on the right side with ta-C, in order to test for added resistance to chemical and abrasive degradation in the working environment. Diamond-like carbon ( DLC) is a class of amorphous carbon material that displays some of the typical properties of diamond.
The Alamo is a 1960 American epic historical war film about the 1836 Siege and Battle of the Alamo produced and directed by John Wayne and starring Wayne as Davy Crockett.The film also co-stars Richard Widmark as Jim Bowie and Laurence Harvey as William B. Travis, and features Frankie Avalon, Patrick Wayne, Linda Cristal, Joan O'Brien, Chill Wills, Joseph Calleia, Ken Curtis, Ruben Padilla as ...
Polishing and buffing are finishing processes for smoothing a workpiece's surface using an abrasive and a work wheel or a leather strop. Technically, polishing refers to processes that uses an abrasive that is glued to the work wheel, while buffing uses a loose abrasive applied to the work wheel. Polishing is a more aggressive process, while ...
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Synthetic diamond. Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. Laboratory-grown ( LGD ), also called lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is diamond that is produced in a controlled technological process (in contrast to ...
Diamond cutting is the practice of shaping a diamond from a rough stone into a faceted gem. Cutting diamonds requires specialized knowledge, tools, equipment, and techniques because of its extreme difficulty. The first guild of diamond cutters and polishers (Diamantaire) was formed in 1375 in Nuremberg, Germany, [1] and led to the development ...
Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).