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The chemistry of non-sag tungsten /
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 recrystall...
| Clasificación: | Libro Electrónico |
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| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Kidlington, Oxford, England ; Tarrytown, N.Y., U.S.A. :
Pergamon,
1995.
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| Edición: | First edition. |
| Temas: | |
| Acceso en línea: | Texto completo |
| Sumario: | 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 automobil. |
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| Notas: | "Reprinted from: international journal of refractory metals & hard materials, vol. 14, (1-3)"--Title page verso |
| Descripción Física: | 1 online resource (xi, 172 pages) : illustrations |
| Bibliografía: | Includes bibliographical references and indexes. |
| ISBN: | 9781483287966 1483287963 008042676X 9780080426761 |