aluminium definition

  • noun:
    • Chiefly British Variant of aluminum.
    • A light, silvery metal extracted from bauxite, and a chemical factor (symbol Al) with an atomic range 13.
    • same as aluminum, mainly British in use.
    • Chemical image Al; atomic weight 27.1. A metal of silver-white color and brilliant luster, about because tough as zinc, really malleable and ductile, very sonorous, and a good conductor of heat and electrical energy.
    • Aluminium melts at 654.5° C., and the tensile strength of bars made of it is about 28,000 pounds a square inch. The commercial production of the metal began about 1888, the process most largely used, as at Pittsburg and Niagara, being that of Hall, in which anhydrous alumina from bauxite is dissolved in a bath of fused cryolite in the presence of carbon and electrolyzed by a current of 6 or 7 volts and 7,000 amperes. The price has been brought down from $15 to 30 cents a pound, and the annual output increased from 3 to many thousand tons per annum. The only moderate strength of the metal, certain difficulties in working it (as, for instance, in soldering), and its chemical alterability under some conditions have tended to limit its applications. Among the more recent uses made of it may be mentioned the etching of designs for theatrical and other posters, substitution for copper in wire for the transmission of electric currents, the manufacture of a silver-like paint from the powder, and the production of a very high temperature by rapid combustion of the powder in admixture with sodium dioxid. See aluminothermics.
    • a silvery ductile metallic factor found primarily in bauxite
    • Chiefly British Variant of aluminum.
    • A light, silvery material obtained from bauxite, and a chemical factor (icon Al) with an atomic number of 13.
    • same as aluminum, mainly Uk in consumption.
    • Chemical image Al; atomic fat 27.1. A metal of silver-white color and brilliant luster, about as tough as zinc, very malleable and ductile, very sonorous, and a great conductor of heat and electricity.
    • Aluminium melts at 654.5° C., and also the tensile power of pubs made from it is about 28,000 pounds a square inch. The commercial production of the steel began about 1888, the method many largely made use of, as at Pittsburg and Niagara, being that Hall, by which anhydrous alumina from bauxite is mixed in a bath of fused cryolite inside presence of carbon and electrolyzed by a current of 6 or 7 volts and 7,000 amperes. The cost happens to be brought down from $15 to 30 dollars a pound, additionally the annual result increased from 3 to numerous thousand tons yearly. The only modest energy of metal, certain troubles in working it (as, for-instance, in soldering), and its own substance alterability under some conditions have had a tendency to limit its applications. On the list of more recent utilizes made from it could be pointed out the etching of styles for theatrical also posters, substitution for copper in line when it comes to transmission of electric currents, the manufacture of a silver-like paint from dust, plus the production of a tremendously warm by fast burning associated with dust in admixture with sodium dioxid. See aluminothermics.
    • a silvery ductile metallic factor discovered mostly in bauxite

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