The Chemistry of Non-Sag Tungsten PDF Download
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Author: L. Bartha
Publisher: Elsevier
ISBN: 1483287963
Category : Technology & Engineering
Languages : en
Pages : 185
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Book Description
Non-sag (NS) tungsten is a dispersion-strengthened microalloy with elemental potassium, which is contained as microscopic bubbles in the tungsten lattice. Under working conditions in an incandescent lamp the potassium is a gas under high pressure. These gas bubbles essentially prevent the recrystallization of the tungsten wire and are responsible for the outstanding creep resistance of NS tungsten at the extremely high temperatures of a glowing lamp filament. More than 90% of NS tungsten is used for incandescent lamps. In addition, small amounts are used as defroster heating wires in automobile windshields and as heating wire coils for aluminium evaporation in metallization applications.The presented papers deal with the chemical reactions and the chemical compounds occurring along the path from tungsten raw materials to the final NS tungsten filament; a compendium of present knowledge on the different chemical aspects of NS tungsten manufacture is presented. It is composed of nine individual papers, each of them written by experts working in the field.
Author: L. Bartha
Publisher: Elsevier
ISBN: 1483287963
Category : Technology & Engineering
Languages : en
Pages : 185
Get Book Here
Book Description
Non-sag (NS) tungsten is a dispersion-strengthened microalloy with elemental potassium, which is contained as microscopic bubbles in the tungsten lattice. Under working conditions in an incandescent lamp the potassium is a gas under high pressure. These gas bubbles essentially prevent the recrystallization of the tungsten wire and are responsible for the outstanding creep resistance of NS tungsten at the extremely high temperatures of a glowing lamp filament. More than 90% of NS tungsten is used for incandescent lamps. In addition, small amounts are used as defroster heating wires in automobile windshields and as heating wire coils for aluminium evaporation in metallization applications.The presented papers deal with the chemical reactions and the chemical compounds occurring along the path from tungsten raw materials to the final NS tungsten filament; a compendium of present knowledge on the different chemical aspects of NS tungsten manufacture is presented. It is composed of nine individual papers, each of them written by experts working in the field.
Author: Oleg D Neikov
Publisher: Elsevier
ISBN: 0080559409
Category : Technology & Engineering
Languages : en
Pages : 644
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Book Description
The manufacture and use of the powders of non-ferrous metals has been taking place for many years in what was previously Soviet Russia, and a huge amount of knowledge and experience has built up in that country over the last forty years or so. Although accounts of the topic have been published in the Russian language, no English language account has existed until now.Six prominent academics and industrialists from the Ukraine and Russia have produced this highly-detailed account which covers the classification, manufacturing methods, treatment and properties of the non-ferrous metals ( aluminium, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, lead, tin, bismuth, noble metals and earth metals).The result is a formidable reference source for those in all aspects of the metal powder industry. - Covers the manufacturing methods, properties and importance of the following metals: aluminium, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, noble metals, rare earth metals, lead, tin and bismuth - Expert Russian team of authors, all very experienced - English translation and update of book previously published in Russian
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Category : Weights and measures
Languages : en
Pages : 1128
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Author: Society of Chemical Industry (Great Britain)
Publisher:
ISBN:
Category : Chemistry, Technical
Languages : en
Pages : 1918
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Category : Powder metallurgy
Languages : en
Pages : 638
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Category : Chemistry, Technical
Languages : en
Pages : 1516
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Category : Nuclear energy
Languages : en
Pages : 1304
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Category : American literature
Languages : en
Pages : 1328
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Author: Cryogenic Data Center
Publisher:
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Category : Low temperature engineering
Languages : en
Pages : 8
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Author:
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Category :
Languages : en
Pages : 1322
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